ES2274662A1 - Average tubes bending machine, has tube pressed against base to form required curvature, gears from crank fixed in bridge by simple motor, and rollers interchangeable by wider or narrower depending on width of tube - Google Patents

Abstract

The machine has a bridge fixed on a body for forming central and main blocks. Two channeled rollers of a semicircular section are provided in the body, and a third roller is fixed in the bridge that moves in vertical direction. A tube is pressed against a base to form required curvature. Gears from a crank are fixed in the bridge by a simple motor. Rollers are interchangeable by a wider or narrower depending on width of the tube.

Description

Half-round tube bending machine singing, (semicircular section).

Technical sector

The invention falls within the technical sector of forging and metalwork, structure manufacturing metal for the elaboration of tables, chairs, doors, windows and in general in all those utensils and objects in which for its manufacturing section profiles are used semicircular.

State of the art

Machines that bend solid bars are known of different sections, (circular, quadrangular etc.).

These machines have been operating for a long time in different work areas, for the execution of objects, utensils and parts used in the manufacture of numerous objects, however in no case a machine capable of bend hollow tubes.

The non-existence in the machine market able to bend hollow tubes, it poses a problem when it comes to make curvatures of any radius in these tubes, slowing down the execution of the different elements and structures necessary for the elaboration of the mentioned objects and utensils previously.

Description of the invention

The present invention relates to a machine tube bending machine of semicircular section to the edge, it is framed within the forge and metalwork sector, they are known solid bar bending machines of different sections, but None of hollow tubes with this section.

The new machine is composed of a base (8), where shafts (11) are housed, horizontal with a ribbed roller (9), each of them, interchangeable with another of the same section (semicircular), but of different width, three gears (5), to through which the movement is transmitted to the curlers fluted, a bridge (2), where an axis with a curl (3) is housed and a support (12), for a fourth gear (6).

The curlers are interchangeable by others equally ribbed of the same semicircular section but of different width, depending on the width of the tube to bend.

The gear set makes it possible for the job made by the machine is comfortable so that with the minimum effort can achieve the desired result.

The axis and roller housed in the bridge moves down or up by means of threaded stud (1) and to through a guide (10) made on the bridge, depending on the type of bending that you want to perform.

This machine can have a manual development, to through a simple crank (4), or a mechanical development, coupling a simple motor.

To make the tube curvature, one end of the same one is placed supported on the curlers of the base, then and by effect of the gear set articulated by the crank, the tube moves horizontally over these, at the same time that the roller housed in the bridge is exerting a pressure on the tube, depending on the desired curvature, pressure that is transmits to a greater or lesser extent through the threaded stud located in the center of the bridge, the tube being perfectly curved at the end of the process.

Brief description of the drawings

A sketch has been made where it is represented the machine schematically, with three views.

Figure 1, corresponds to a front view where the gears of the base (5) are perfectly appreciated, as well as the gear (6), housed in the bridge (2), the base (8) and the shape of the bridge, as well as the axis and the roller (3), housed therein, the threaded stud is also perfectly represented (1), by means of which it moves up or down the corrugated roller housed on the bridge, the whole machine is shown supported on legs (7), although it can be placed on any other surface (table, workbench, etc.).

Figure 2, corresponding to a rear view, in which the placement of the curlers (9) and the movement of the roller housed in the bridge, to better appreciate this, a tube with an example of curvature (14) has been placed.

Figure 3, is a side view, in which appreciate in detail the section of the curlers (9), the situation of the shafts that hold the grooved rollers, gears and crank (4), with the gear (6), to which it is attached.

Figure 4, is a sketch with some of the structures that can be performed.

Description of a preferred embodiment

In forging elements, where structures can be excessively heavy by using solid materials, It is fundamentally practical.

A table with any defined shape in which The whole structure is composed of solid elements, lighten the weight of it with a support base for the glass with a It had a form, thus achieving a greater base of support for it.

Claims (4)

1. Tube bending machine of semicircular section to the edge, composed of a body (8), on which a bridge (2) is raised, both forming the central and main block of the machine, housing two curlers (9 ), characterized by the fact of its semicircular corrugated section and the possibility of being able to be exchanged depending on the width of the tube to be curved, the curlers are located in line. 2. Machine according to claim 1, characterized in that the gear set (5) is located in such a way that with the minimum effort, transmitted from the crank (4), maximum movement is generated. 3. Machine according to claim 1, characterized in that another bridge (3) is also housed in the bridge, also grooved and with the same section as those housed in the body, with the particularity that it has a vertical movement produced by a threaded stud which is threaded or unscrewed depending on the radius of the tube (13) to bend, this displacement is carried out through a groove (10), which runs the entire length of the bridge. 4. Machine according to claim 1, characterized in that the rollers are interchangeable in such a way that they can be adapted to the width of the tube to be curved and their movement can be of the manual type, by means of a crank (4), or mechanic by coupling a simple motor for this purpose.