Werkzeug zur Herstellung von Falzlinien

The invention relates to a tool for the production of folding lines in sheet materials such as cardboard, corrugated cardboard, honeycomb cardboard, plastic webs and the like, consisting of a metallic strip-shaped base body with a working part arranged on one longitudinal edge thereof and a support member having a supporting edge opposite equally spaced.

For [...]accurate to size and optically corresponding edges of articles is most commonly a treatment of flat material by means of tools set out above, so-called scoring lines required.

It it is the aim, during the machining of optionally cardboard, corrugated cardboard or plastic film to reduce the bending resistance of the material along predetermined lines so far that at these locations a later folding can be done easily and clean edges or folds arise.

For example, at a processing of corrugated board, whether these [...] rotary process takes place independently in the, this is usually achieved by means of scoring lines wave medium by flattening out the. It grooves are always problematic in small angle thereto in the direction of the shaft or with respect to a design of the edges.

By alternately grooves and cutting with an additional weakening of the material at the bend lines combination line can be achieved, so that the orientation of the shaft low impact on the quality of the crease or. Fold.

combination lines turn by a toothed cutting portions and smooth [...] Especially with regard to the rotary process, wherein the cutting or toothed portions protrude well above the height of the [...].

The disadvantage in this is that in the bending line is severed cardboard paper in sections in the finished product the outwardly disposed. This is impeding both the tightness of the final product as well as its optical quality.

Objective of the invention is, to create a tool for the production of folding lines of the aforementioned type, which at a treatment of flat material and between these cutting parts or forms cutting ranges[...] drawn up, wherein a penetration of the tool in these optionally only at certain points by the cover sheet or lining strip of the sheet material, in particular of corrugated board, takes place.

This objective is achieved with a would genericin accordance with-eat Tool thereby that the working part separation-free[...] with a rounded in cross-section from a crushing of the flat material or with a profile and of effecting cutting ranges with in cross-section from a tip extending from, to the bottom-reaching, on both sides is formed sharp-edged cutting-forming flank surfaces, wherein the outermost rounded profile surface cutting ranges[...] and the tips of the the same distance from the the opposite have supporting edge.

The strength is achieved with the invention that the later visible outside of the edge of the sheet material has no or only in minimal extent disconnections.

Preferred embodiments of the inventive tool are characterized in the dependent claims.

A Explanation of the symbols is to facilitate the allocation of the components of the tool according to the invention.

It show:

1 base body

2 working part

3 [...]

4 cutting range

40 flank surfaces

41 base of the cutting

42 cutting edges

43 tips of the cutting ranges

11 supporting edge

Shown

Fig. 1 a tool in projection

Fig. 2 a tool in cross-section

1 and 2 schematically represented in Fig. Fig. tool A, which shows only one embodiment of the invention, essentially consists of a base body 1 with a supporting edge 11 and a working area 2 a preparation of the tool serves mostly a strip-shaped input stock. For, wherein said supporting edge 3 or its surface 11 and the necessary spaced [...].

By machining cutting ranges[...] 3 are optionally incorporated in the 4 to form alternately from opposite flank surfaces 40, wherein the sharp-edged tips [...] 43 and the end surface is substantially the same distance to said supporting edge 11 of the tool have 3.

Depending on the preparation or. Material of the flat material, in particular depending on the different mechanical properties, for example in the use of recycling materials, it may be favorable, in comparison with that 3 of the tool that the thickness of the 3 different [...] is formed of the main body.