MC524A1 - Method and machine for sawing panels or the like - Google Patents

Description

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"Method and machine for sawing panels or the like"

Inventor Paul VIDAL - Company known as: ROGMA MSTALT

The present invention relates to a method and a machine for sawing panels or the like, in particular produced continuously.

Various sawing devices are already known for sectioning panels in which a saw ensures the slicing of said panels in a single operation.

However, when it comes to cutting panels made of materials that exhibit a certain fragility, such as, in particular, expanded synthetic panels, such

3°/ -We make, at least temporarily, the panel or similar attached to the parts supporting the sawing tools.

Eaciiine for sawing panels and similar materials, equipped with a frame:

-of .;.means of "stop to maintain said panel or similar,

-of: sawing tools, in a flexible manner, on a support element belonging to said frame, said sawing tools being capable of cutting up to a predetermined distance from said support, called the cutting distance,

said nachine being characterized in that:

1°/ - the stop means are provided to maintain, if necessary, relative to the support of a first sawing means

- at least a portion of the first face of the panel, at a distance less than the cutting distance, and,

- the opposite face of said panel at a distance greater than the cutting distance,

Thanks to this, the implementation of the first sawing method only allows the panel to be cut to a depth less than its thickness.

2°/ - it comprises, mounted on a second support element oriented parallel to the support element of the first sawing jig and arranged, in relation to the first element of the sawing jig, on the side facing the

- 3 -

- a second mobile sawing device,

- .. offset from the first sawing method,

- whose sawing tool works substantially in the same plane as the first, with a cutting distance, measured from the second support element, such that the sum of the cutting distances of the first and second means of sawing is at least equal to the distance between the supports of said elements.

3°/ -Motorized means are provided to move the sawing means.

4°/ -The chassis is equipped with rolling means.

ORIGINAL

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sawing only allows the panel to be cut to a depth less than its thickness, and that

- it comprises, mounted on a second support element oriented parallel to the support element of the first sawing means and arranged, relative to the first support element, on the side opposite the first sawing means,

- a second mobile sawing device,

- offset from the first sawing method,

- whose sawing tool works substantially in the same plane as the first, with a cutting distance, measured from the second support element, such that the sum of the cutting distances of the first and second sawing means is at least equal to the distance between the supports of said elements"

The invention will, moreover, be better understood if one refers to the following description, given by way of non-limiting reference, with regard to the drawings of the attached plates.

Based on these drawings;

- Figure 1 represents, in perspective, an overall view of a first embodiment of a machine according to the invention, during the cutting of a panel. The machine being symmetrical as a whole, with respect to a plane materialized by the panel, the machine elements furthest away in the figure will bear the same references as the symmetrical ones closest to it, but with the index "a"§

- Figure 2 shows a detail of the motor power supply device driving the machine's saw;

- Figure 3 represents a simplified variant

of supports 53 supporting the sawing device. Between these two supports 53, the panel 54 cut by a sawing assembly 55, consisting of a motor 56 and a circular saw 57, can be inserted.

This assembly moves along two successive tracks 58, 59 located respectively on either side of the panel, and connected to each other by connecting curves at the lower and upper parts. The drive of this sawing device 55 is provided by a chain 60, itself driven by a suitable transmission, thanks to the motor 61 fixed to the frame.

Rollers 62 are provided in the lower part of the machine to support the lower edge of the panel 54. In addition, this panel 54 is held in place by clamps 63 and 64 fixed on the supports of the guide paths and capable of clamping the panel during a sawing operation.

Finally, when this sawing operation is finished, the whole machine is brought back by a cable 65 pulled back by a spring or a counterweight, not shown.

If we refer in particular to figure 4, we can see represented schematically the detail of the sawing process.

The saw 57s, rotating in the direction indicated by the arrow, is moved upwards along the first guide path and, during this movement, it cuts the panel 54 to a depth slightly greater than half the thickness of the panel (the median plane of the panel is substantially centered on the plane of symmetry of the two paths).

of guidance 58, 59)=

Once the first face of the panel has been cut, the saw pivots in the rounded upper part of the guide rail and begins cutting the other face of the panel, engaging in the same plane as the first cut. Consequently, during the saw's downward movement, it only needs to cut a thickness slightly less than half the panel's thickness.

As a result, the sawing is done with a slight overlap of the working area, which gives a perfectly clean and splinter-free section.

Compared to the one shown in Figure 1, this device has the advantage of greater simplicity.

However, in the case of the most fragile materials, the one in Figure 1 will be preferable, because it is likely to be driven not only by the panel, but also by the chain 15, while for materials of greater rigidity or less fragility, the device in Figure 3 will be sufficient.

Various modifications or variants of the above description could, of course, be used, without departing from the scope of the invention.

In particular, panel 4, or 54, instead of moving on edge, could very well move horizontally flat5 the sawing units would be, in this case, respectively above and below said panel.

Furthermore, the 8-9 and 8a-9a- runways of the sawing units could also be made in the form of two vertical uprights, themselves movable in a vertical plane perpendicular to the panel, and which,

-10-

pend.ar.it the return to the starting position of said units, would be moved aside by means provided for this purpose, to be brought back to the starting position for the next cutting.

In addition, the entire machine, including the 5 rails 2 and 2a, or 52 - 52a, could move transversely, so that panels, stored on edge, are positioned opposite the intended running track on the trolley.

Furthermore, the same motor 6, or 56, could receive more than one saw, when the length of the panels to be cut 10 is relatively small.

Claims (1)

H 21 G U II E The present invention relates to I - A method for sawing panels or the like in which, - one face of a panel is cut using a sawing tool, movable relative to the panel in a direction substantially parallel to a direction contained in said panel, the teeth, or similar, of the sawing tool, cutting into the panel by penetrating through said face; said process being characterized by the following points, considered individually or in various combinations: 1°/ - the panel is sawn to a depth less than its thickness, creating a notch that leaves a residual thickness of panel and one intact face, and, -the remaining thickness is sawn off using a sawing tool, - moving in relation to the notch, along a direction that is both substantially parallel to the intact face of the panel and parallel to the notch, and - whose teeth, or similar, cut through the said panel by penetrating through the intact face. 2°/ -Since sawing is carried out on a panel, or similar, animated by a movement of displacement, the organs supporting the sawing means are animated by an identical simultaneous movement.