APPARATUS AND METHOD TO GUIDE METAL PRODUCTS
FIG4 is a view from above of a guide apparatus according to another embodiment
According to a variant embodiment (FIG4), the guide apparatus 10 comprises two guide rolls 13 located adjacent to each other and having their own axes of rotation X parallel to each another. According to a variant embodiment (FIG4), the support arms 12 can be pivoted in an intermediate zone of the length of the support arms 12, and can support the guide rolls 13 in correspondence with one of their ends. According to another variant embodiment, shown by way of example in FIG4, each adjustment device 24 is associated with one end of the support arm 12, opposite the support end of the respective guide roll 13. According to the solution of FIG4, the adjustment screw 25 is screwed onto the corresponding support arm 12 and one of its ends abuts against the support body 11. By screwing or unscrewing the adjustment screw 25 it is possible to adjust the position of the respective support arm 12 and therefore of the guide roll 13 associated with it. In accordance with a possible variant embodiment, shown by way of example only in FIG4, both the support arms 12 are connected, in correspondence with their ends, by an elastic element 28 provided to keep both support arms 12 distanced from one another. According to another solution (FIG4), the detection devices 19 are installed on the support body 11 and the adjustment devices 24 have a portion 35 which selectively contacts the detection devices 19 to transmit the stresses from the metal product to the detection devices 19 through the adjustment devices 24. In particular, it can be provided that the adjustment screw 25 has the portion 35 positioned in contact with the detection devices 19.
view
24
adjustment devices adjustment device
28
elastic element
35
portion
14
gap
12
support arms support arm
19
detection devices detection device
11
support body
18
pivoting elements
4
diameter comprised between
31
pin
112
defined between rolling rolls
27
drive members drive member
10
guide apparatus
29
command unit
110
rolling apparatus
13
rolls roll
['1. Apparatus to guide a metal product, said apparatus comprising, a support body (11), a plurality of support arms (12) associated with said support body (11), and a plurality of guide rolls (13) installed rotating in an idle manner on said support arms (12) and defining between them a roller guide gap (14) for said metal product, wherein a respective adjustment device (24) is associated with each support arm (12) and configured to adjust, independently from the other adjustment devices (24), the position of each of said guide rolls (13), and wherein said apparatus comprises detection devices (19), each associated with one of said support arms (12), configured to detect the stresses induced by said metal product on each of said guide rolls (13),  characterised in that  each adjustment device (24) comprises its own drive member (27) selected between an electric rotary motor and an electric linear actuator to adjust the position of each of said guide rolls (13), and  in that  said apparatus comprises a control and command unit (29) connected to said detection devices (19) and to said drive members (27), and configured to command the drive of the respective one of said drive members (27) as a function of data detected by said detection devices (19).', '4. Apparatus as in claim 1, 2 or 3,  characterized in that  an elastic element (28) is connected to each support arm (12) and is configured to exert on the support arm (12) an action of distancing the guide rolls (13) from the roller guide axis (G) defined by them,  and in that  said detection devices (19) are installed in the connection zone of said elastic element (28) to said support arm (12) and/or to the support body (11).', '5. Apparatus as in claim 1,  characterized in that  said detection devices (19) are installed on said support body (11) and said adjustment devices (24) have a portion (35) that selectively comes into contact with said detection devices (19) to transmit the stresses from said metal product to said detection devices (19)  through said adjustment devices (24).', '7. Apparatus as in any claim hereinbefore,  characterized in that  said support arms (12) are pivoted to said support body (11) by pivoting elements (18),  and in that  said adjustment devices (24) are configured to make said support arms (12) rotate around said pivoting elements (18) of said support arms (12).', '8. Rolling machine comprising at least a rolling apparatus (110) and at least a guide apparatus (10) as in any claim hereinbefore and installed on said rolling apparatus (110).']