ES2206059B1 - SYSTEM TO CUT PROFILES. - Google Patents

Abstract

Profile cutting system. It allows cutting profiles (11, 12) whether they are flat (wheels 11), or if they are angled profiles (angular 12, "U" 13 and similar), using a single knife holder head (7), instead If two independent heads are required: one for the cutting of tires (11) and the other for profiles (12) at an angle and the like (13). According to the invention, the knife holder head (5) can swing around two different articulation axes: a lower one (9) located practically in the same plane of the rim (11) to be cut, so that the path of the blade is practically vertical; and another (10) arranged superiorly to the previous one (9) so that the trajectory of the movable blade (4) follows a diagonal direction close to 45 ° to make the angular cut.

Description

Profile cutting system.

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a system for cut profiles, which has been designed with the purpose of can be cut in the same shearing machine, both laminar profiles (tires) and angular profiles (angles)

Background of the invention

Currently, cutting both types of referred profiles: angular and tires, it is done in machines cutters or shears that include means of feeding the profile, common to any of these two types, and two heads independent that incorporate respectively the blades of cutting of angular profiles and those of cutting the tires or flat profiles

This is so because you have to keep in mind that to cut tires, the mobile blade must move vertically towards the horizontal blade on which the profile sits, although the edge of this one affects with certain angle of attack with respect to the Edge the horizontal blade fixed. To cut a angular, there must be an oblique displacement of the blade (from 45º order) so that the two orthogonal blades of the blade mobile attack at the same time on the two wings of the angular, being perfectly supported by its wings on the blades fixed vertical and horizontal, respectively.

The movement of the mobile blade is obtained by the action of a hydraulic cylinder anchored to a point fixed frame and knife holder, thus being tilting around an axis.

Description of the invention

In general, the cutting system profiles, object of the invention, manages to use the same knife holder head to cut profiles of both types, when incorporating the cutting machine, two axis of rotation selective, around which, one or the other, is performed selectively the tilting movement of the knife holder.

These axes of rotation are in position distant and parallel, one over another, at points such that when turning around one of them, the mobile blade practically effects a vertical movement while turning around the other axis causes a movement of the blade towards the cutting area, which follow an oblique direction, moving towards the apex of the angular to make the cut and with the angle of attack preset by the location of this axis of rotation that is the superior of both.

In this way, depending on the type of profile to cut, the pin around which it is to be made is selected the tilt.

Naturally, this cutting system allows also perform the cutting of special "U" profiles, "I", "H", etc., without using blades specific, as we will see later in relation to drawings.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report, accompanying some sheets of plans in whose figures, with an illustrative and non-limiting nature represented the following:

Brief description of the drawings

Figure 1.- It is a schematic elevation view side, of a machine that includes the system for cutting profiles object of the invention, being arranged for the cutting of tires or flat profiles (plates).

Figure 2.- It is a view similar to Figure 1, but ready to make angled profile cuts.

Figure 3.- It is a view similar to Figure 2, with a specific mobile blade to make profile cuts in "U".

Description of the preferred embodiment

Referring to the numbering adopted in the figures, we can see how the system for cutting profiles, which the invention proposes, it can be carried out in a cutting machine equipped with a frame or bench (1) where they are arranged the fixed blades (2) and (3), the first horizontal and the second vertical. On them acts the mobile blade (4) integral with the knife holder (5) that executes tilt down movement during the cutting operation, then withdrawing to enable the advance of the profile to be cut.

The knife holder (5) is assisted by the hydraulic cylinder 6 connected to the end of the body (7) of the machine, and to a point 8 radially away from the axis of articulation of the knife holder (5).

Well, the knife holder (5) can swing around two different axes, referenced with numbers (9) and (10), which are selected depending on the form of the profile to cut.

In figure 1, the profile to be cut is a flat tire or profile (11) and in this case the joint is performs around the axis (9), the lowest and that is practically in the same horizontal plane as the rim (11) a cut. It is easily deduced that when the cylinder (6) is extended, the moving blade (4) behaves as if descending vertically towards the rim (11) since the tangent to the trajectory of the point Cutting is vertical.

In figure 2 where the same machine is seen adapted to cut angle profiles (12), the rotation is made around the upper axis (10) and in this case the cut-off point of the mobile blade (4) follows a generally diagonal path for that the vertical edge of the same attack against the vertical wing of the angular profile (12), and the horizontal edge of said movable knife (4) attack the horizontal wing of the angular profile (12) practically at the same time, or with a small difference.

Therefore, with a single head and without specifying blade changes, the machine can make tire cuts (11) or angular profiles (12), without more than selecting on which of the axes (9) or (10) the blade holder has to tilt (5).

To cut other types of profiles such as "U" profiles (13) as shown in figure 3, just use a specific mobile blade (4), referenced in this case with (4 '), and the blade holder (5) rotate on the bolt (10)

Claims (1)

1.System to cut profiles, whether they are flat (11 wheels) or angular (12) or others (13), using a single knife head and through a tilting movement assisted by a hydraulic cylinder, moving the moving blade with respect to some blades fixed to the bench, characterized in that it consists of providing two articulation axes (9, 10) so that the knife holder head (5) can selectively tilt around one (9) or another (10) of said horizontal axes (9, 10 ), depending on the type of profile to be cut (flat or angular); one of which (9) causing the trajectory of the mobile blade (4) to be practically vertical (cutting of wheels 11) and another (10) where it follows a diagonal direction close to 45 ° (cutting of angular profiles 12, in "U "13 and others).