Protective cooling cover for cutter discs

Abstract

The protective cooling cover comprises a hollow shell defining a generally semi-cylindrical cavity (15) that covers a portion of a cutting disc (2) at the top thereof and that is delimited by two lateral walls (11, 12) and a curved perimeter wall (13), a cooling device including a tube connected to a cooling liquid supply and to a cooling liquid projecting nozzle (31), and a fastening device for fixing the cooling liquid projecting nozzle (31) at different positions within the cavity (15) of the shell for projecting cooling liquid to different areas of the cutting disc, the fastening device including a plurality of first fasteners (17) connected to the periphery of the cavity, and a second fastener (32) connected to the cooling liquid projecting nozzle (31), the first and second fasteners (17, 32) providing a snap fit releasable connection.

Claims

1. A protective cooling cover for a cutter disc rotative around a cuter disc axis, said cutter disc having a top upper portion and an edge, wherein said protective cooling cover comprises: a shell defining a generally semi-cylindrical cavity that covers said top upper portion of the cutter disc and is delimited by two lateral walls and a curved perimeter wall; a cooling device including a tube, connectable to a cooling liquid supply supplying a cooling liquid, and connected to a cooling liquid projecting nozzle; a fastening device including a plurality of first fasteners connected to the lateral walls and/or to the curved perimeter wall and comprised within said cavity, in different positions around a periphery of the cavity, and at least one second fastener connected to the cooling liquid projecting nozzle, said second fastener being complementary and attachable to any of the first fasteners, being the cooling liquid projecting nozzle fixable in any of said different positions around the periphery of the cavity directing the cooling liquid projecting nozzle towards the cutter disc.

2. The protective cooling cover, according to claim 1, wherein the lateral walls of the protective cooling cover internally comprise flaps for collecting and redirecting towards the lateral faces of the cutter disc the cooling liquid which has been previously projected by the cooling liquid projecting nozzle towards the cutter disc and which is now projected by the rotation of the cutter disc towards the curved perimeter wall.

3. The protective cooling cover, according to claim 1, wherein the fastening device comprise guides contained within the cavity that define, together with said perimeter wall, a passage for housing the tube within the protective cover, out of reach of the cutter disc.

4. The protective cooling cover, according to claim 3, wherein the passage for housing the tube is bigger than the tube, allowing a sliding movement of the tube along the passage.

5. The protective cooling cover, according to claim 1, wherein the fastening device comprise at least one of the plurality of first fasteners in an upper position in which the cooling liquid projecting nozzle with the correspondent at least one second fastener attached to said at least one first fastener placed in the upper position directs the cooling liquid towards an upper portion of the cutter disc.

6. The protective cooling cover, according to claim 5, wherein the fastening device comprise at least one of the plurality of first fasteners in a lower position in which the cooling liquid projecting nozzle with the correspondent at least one second fastener attached to said at least one first fastener placed in the lower position directs the cooling liquid towards the edge of the cutter disc.

7. The protective cooling cover, according to claim 6, wherein the plurality of first fasteners defined inside the cover are distributed angularly between the upper and lower positions.

8. The protective cooling cover, according to claim 1, wherein the shell is made of two independent parts, each part containing at least one lateral wall, being said two independent parts connected and articulated to each other through an articulation rotatable around a rotating shaft, allowing the opening of the shell and the access to the cavity.

9. The protective cooling cover, according to claim 8, wherein the rotating shaft around which the articulation that connects said two independent parts is rotatable is parallel to a plane defined by said lateral walls of the cover.

Description

DESCRIPTION OF THE FIGURES

(1) FIG. 1 shows a front elevation view of the protective cover with cooling for cutter discs.

(2) FIG. 2 shows a front elevation view of the protective cover with cooling for cutter discs.

(3) FIG. 3 shows a front elevation view of the protective cover, in which one of the lateral walls has been removed in order to allow a view of the tube and the cooling liquid supply nozzle, said nozzle being represented using solid lines in the upper position and dotted lines in a lower position.

(4) FIG. 4 shows a perspective view of one of the lateral walls of the cover seen from its inner face.

(5) FIG. 5 shows a profile view of a vertical cross-section of an upper portion of the cover and the disc.

PREFERRED EMBODIMENT OF THE INVENTION

(6) In FIGS. 1 and 2, the protective cooling cover 1 for cutting discs is seen which comprises a rotatory circular cutting disc, a shell defined by two lateral walls 11, 12 provided with facing extensions that make up a curved perimeter wall 13 and a cooling device including a tube connected by one end to one cooling liquid projecting nozzle 31 and to a cooling liquid supply by the opposed end.

(7) Said shell covers a portion of the cutting disc 2 at the top.

(8) The shell is made by two independent parts, each including at feast one of said lateral walls 11, 12.

(9) The independent parts are connected and articulated to each other via an articulation rotatable around a rotating shaft E that enables the cover 1 to be opened, and they are fixed in a closed position via a threaded element 14.

(10) In the closed position, the shell defines an inner cavity 15 that internally comprises, in its periphery facing the edge of the cutting blade, a fastening device for fastening a portion of a cooling device housed within the shell.

(11) The cooling device include a tube 3 connected on one end to a cooling liquid supply, and on the other end to a cooling liquid projection nozzle 31, being said cooling liquid projection nozzle 31 and a portion of the tube housed within the cavity of the shell, said tube exiting the cavity through a hole provided in the shell.

(12) The fastening device include a plurality of first fasteners 17 connected to the inner periphery of the shell, out of reach of the cutting blade, for example following a path parallel to the curved perimeter wall 13, and a second fastener 32 connected to the cooling liquid projection nozzle 31. The first fasteners 17 and the second fastener 32 are complementary and connectable to each other providing a snap fit coupling.

(13) Said first fasteners determine several positions P1, P2, P3, P4, P5 which are shown in FIG. 3 and in which the cooling liquid projection nozzle 31 can be attached through its second fastener 32. Said positions are comprised between: an upper position P1 in which the nozzle projects the liquid vertically on the upper end of the disc 2, and a lower position P5 in which the nozzle 31 projects the liquid directly, in this case horizontally, against the edge of the disc 2.

(14) The intermediate positions P2, P3 and P4 are uniformly distributed between the upper and lower end positions P1, P5.

(15) The fastening device includes guides 16 parallel to the curved perimeter wall 13 and that define, together with said perimeter wall 13, a passage for the tube housing 3.

(16) As seen in FIGS. 4 and 5, the lateral walls 11, 12 of the shell internally comprise flaps 18 for collecting, and for redirecting towards the lateral faces of the cutting disc 2 the liquid projected towards the curved perimeter wall 13 by the cutting disc 2 during its rotation movement due to the centrifugal force.

(17) Having sufficiently described the nature of the invention, in addition to a preferred exemplary embodiment, it is hereby stated for the relevant purposes that the materials, shape, size and layout of the described elements may be modified, provided that it does not imply altering the essential characteristics of the invention claimed below,