Constructive arrangement introduced in the structure of the unwinder or rewinder of metal coils

Abstract

This utility model patent relates to a new unwinder or rewinder structure, belonging to the mechanical technical sector for the metallurgical industry, in which the mandrel shaft bearings and the counter support are fixed, and, according to its constructive variant, the motor, the pressing arm, and the metal coil positioning carriage are additionally coupled, thus providing very advantageous practical, safe, and functional results. The unwinder comprises a rectangular base (1) that is fitted and fixed to a column (2), where the rectangular base (1) is made from the union of longitudinal (11) and transverse (12) i-profiles.The column (2) comprises a vertical body (21) and a cover (22), the vertical body (21) being made from a U-shaped bent sheet, forming the side walls (211) and the rear wall (212), the side walls (211) having partial L-shaped folds (2111) at the ends, which close, in the lower portions, in the cutouts (2112) also provided at the ends, for fitting into the horizontal tabs of the rear cross-section (12), in addition to having openings (2113) at the vertices for fitting the side protrusions of the front cover (22). said rear wall (212) has a circular opening (2121) with holes (2122) for installing and fixing the bearing and the cover (22) is made from an inverted C-shaped bent sheet, forming the upper (221) and lower (222) tabs, for lateral locking of the structure.

Description

CONSTRUCTIONAL ARRANGEMENT INTRODUCED IN THE STRUCTURE OF A METAL COIL UNWINDER OR REWINDER

[001] This utility model patent relates to a new constructive arrangement introduced in the structure of a metal coil unwinder or rewinder, belonging to the mechanical technical sector for the metallurgical industry, in which the bearings of the mandrel shaft and the counter support are fixed, and according to its constructive variant, the motor, the pressing arm, as well as the metal coil positioning carriage are additionally coupled, thus providing very advantageous practical, safe and functional results.

[002] Metal coil unwinders or rewinders, as they are known in the market, comprise a structure where the motor, bearings, etc. are fixed. However, such structures are robust, heavy, and formed by several flat sheets positioned vertically and horizontally, which undergo assembly and welding processes, and thus require a lot of time in the manufacturing process and consequently a higher production cost.

[003] Thus, the structure for unwinding or rewinding metal coils was developed, which, with its new constructive arrangement, allows for a functional improvement in its manufacture. It is basically composed of a base made of "I" profiles and a column which, in its simplest version, comprises two parts: a vertical body made of folded sheet metal forming a "U" shape and a front cover. In its constructive variant, a base for the motor and the structure of the pressing arm are also provided, considerably reducing the production and assembly time of the structure, solving the aforementioned inconveniences and providing other advantages resulting from its design. Petition 870200070385, dated 05 / 06 / 2020, page 6 / 21 2 / 4

[004] The present utility model patent will be better understood through the attached drawings which schematically represent: Figure 1 - perspective view of the metal coil unwinder or rewinder structure; Figure 2 - perspective view of the vertical column; Figure 3 - perspective view of the vertical column cover; Figure 4 - Perspective view of a constructive variant of the metal coil unwinder or rewinder structure, highlighting the front, top and left side faces; Figure 5 - perspective view of a constructive variant of the structure, highlighting the rear, top and left side faces; Figure 6 - Front view of a constructive variant of the structure; and Figure 7 - Perspective detail of a constructive variant of the structure.

[005] According to figures 1 to 3, the metal coil unwinder comprises a rectangular base (1) that is fitted and fixed to a column (2).

[006] The rectangular base (1) is made from the joining of longitudinal (11) and transverse (12) “I” profiles, the upper front ends of the longitudinal profiles (11) having holes (111) for fixing the counter support locks and one of them having a hole (112) for fixing the counter support lock, in addition to holes (113) being provided at the ends of the lower side flanges for fixing the structure to the floor. Aligned on the sides of the base (1) are provided supports (13) for the horizontal passage tubes that prevent the coil from contacting the base (1) of the structure and a support (14) is also provided on the rear transverse profile (12) for fixing one end of the vertical passage tube. Petition 870200070385, dated 05 / 06 / 2020, page 7 / 21 3 / 4 which prevents the coil from coming into contact with the column (2) of the structure.

[007] The column (2) comprises a vertical body (21) and a cover (22), the vertical body (21) being made from a U-shaped folded sheet, forming the side walls (211) and the rear wall (212), the side walls (211) having partial L-shaped folds (2111) at the ends, which close, in the lower portions, in the cutouts (2112) also provided at the ends, for fitting into the horizontal tabs of the rear cross-section (12), in addition to having openings (2113) at the vertices for fitting the side protrusions of the front cover (22). Said rear wall (212) has a circular opening (2121) in the upper portion with holes (2122) around it for installing and fixing the bearing.The cover (22) is made from a sheet bent into an inverted “C”, forming the upper (221) and lower (222) tabs, the side locking of the structure, and the front wall (223), the latter having a circular opening (2231) with holes (2232), coincident and proportional to the circular opening (2121) and the holes (2122), also provided on the sides are protrusions (2233) for fitting into the cutouts (2113) of the vertical body (21), in addition to the upper cutout (2234) for fixing upper supports in the case of using a press arm, and lower cutout (2235) for fixing the support (2236) of the vertical passage tube that prevents the coil from contacting the column (2) of the structure.

[008] According to figures 4 to 7, in one constructive variant the structure will have a base (10) formed by two extended side profiles (101) and a rear profile (102), to which the rods (103) are fixed, which serve as support for the hydraulic unit (not shown) and the column (20) will be taller, where above the height of the cover (2) a rectangular opening (201) and an inverted “U” shaped base (202) are provided, for support and passage of the motor. An opening (201') is also provided on the front face, delimited by. Petition 870200070385, dated 05 / 06 / 2020, page 8 / 21 4 / 4 L-shaped rod (203) which is equipped with a support (204) for fixing the pressing arm (not shown), which is coupled to the side structure (205), in “C”, fixed to the upper portion of the column (20) equipped on the front face with a curved slot (2051) for the passage of the arm shaft and internally are provided the supports (2052) for fixing and articulation of the arm cylinder.

[009] With the metal coil unwinder or rewinder structure thus designed, its manufacture becomes much faster and more efficient, as it is basically composed of a base (1), made of longitudinal (11) and transverse (12) “I” profiles, and a column (2) which comprises a vertical body (21) in folded sheet metal forming a “U” and a front cover (22), considerably reducing the production time and the assembly of the structure, in addition to allowing the use of other complementary elements, used according to the industry's demand.

[010] The metal coil unwinder or rewinder structure, the subject of this innovation, offers the following advantages over its known counterparts: - It features functional improvements in its manufacturing process, allowing for significant productivity gains; - It has a lower production cost due to the use of less material; - It is lighter, making it easier to handle and transport; and - Allows for faster and more precise assembly.

[011] The scope of the present innovation, therefore, should not be limited to construction details, but rather only to the terms defined in the claims and their equivalents.

Claims

1 - CONSTRUCTIONAL ARRANGEMENT INTRODUCED IN A METAL COIL UNWINDER OR REWINDER STRUCTURE, which comprises a rectangular base (1) that is fitted and fixed to a column (2), characterized by the rectangular base (1) being made from the union of longitudinal (11) and transverse (12) “I” profiles, the upper front ends of the longitudinal profiles (11) having holes (111) for fixing the counter support locks and one of them having a hole (112) for fixing the counter support lock, in addition to the lower side flanges having holes (113) for fixing the structure to the floor;In a manner aligned on the sides of the base (1), supports (13) are provided for the horizontal passage tubes that prevent the coil from contacting the base (1) of the structure, and a support (14) is also provided on the rear cross-section (12) for fixing one end of the vertical passage tube that prevents the coil from contacting the column (2) of the structure; the column (2) comprises a vertical body (21) and a cover (22), the vertical body (21) being made from a sheet bent into a “U”, forming the side walls (211) and the rear wall (212), the side walls (211) having at the ends partial folds (2111), in an “L”, which end, in the lower portions, in the cutouts (2112) also provided at the ends, for fitting into the horizontal tabs of the rear cross profile (12), in addition to the openings (2113) being provided at the vertices for fitting the side protrusions of the front cover (22);said rear wall (212) is provided in the upper portion with a circular opening (2121) with holes (2122) around it for installation and fixing of the bearing; the cover (22) is made from a sheet bent into an inverted “C”, forming the upper (221), lower (222) locking tabs Petition 870200070385, dated 05 / 06 / 2020, page 10 / 21; 2 / 2 side of the structure, and the front wall (223), the latter having a circular opening (2231) with holes (2232), coinciding and proportional to the circular opening (2121) and the holes (2122), also having protrusions (2233) on the sides for fitting into the cutouts (2113) of the vertical body (21), in addition to the upper cutout (2234) for fixing upper supports in the case of using a press arm, and lower cutout (2235) for fixing the support (2236) of the vertical conduit that prevents the coil from contacting the column (2) of the structure.2 - CONSTRUCTIONAL ARRANGEMENT INTRODUCED IN A METAL COIL UNWINDER OR REWINDER STRUCTURE, according to claim 1, characterized in that in a constructional variant the structure is provided with a base (10) formed by two extended side profiles (101) and a rear profile (102), in which the rods (103) that serve as support for the hydraulic unit are fixed and the column (20) will be higher, where above the height of the cover (2) a rectangular opening (201) and an inverted “U” shaped base (202) are provided, for support and passage of the motor; On the front face there is also provided an opening (201') delimited by the “L” shaped rod (203) which is equipped with a support (204) for fixing the pressing arm, which is coupled to the side structure (205), in “C”, fixed to the upper portion of the column (20) equipped on the front face with a curved slot (2051) for the passage of the arm shaft and internally there are provided the supports (2052) for fixing and articulating the arm cylinder.

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