ES2323828A1 - Machine and method for grinding, polishing and satinising tubes and/or metallic plates - Google Patents

Abstract

The machine for grinding, polishing and satinizing metallic tubes with a circular, square or rectangular cross-section and/or metallic plates, comprising a plurality of grinding heads (10) and polishing heads (1) provided with different kinds of consumable articles, a plurality of conveyor elements (2) of the metallic articles moving said metallic articles along said heads (1, 10), and a plurality of positioning elements (3) of said metallic elements, said grinding heads (10) being placed to carry out a transversal or longitudinal grinding on the metallic tubes and plates, and it is characterised in that said polishing heads (1) are placed to carry out a polishing on the tubes and plates along a different direction with respect to the direction of said grinding passing just once and in a continuous process. It is obtained a different polishing than that of the current method, i.e. the polishing lines extend differently from the grinding lines.

Description

Machine for grinding, polishing and satin metal tubes and plates.

The present invention relates to a machine for grinding, polishing and satin finishing of tubes and plates metallic, especially tubes of square, rectangular or circular, or plates of any metal and any length.

Background of the invention

Currently to perform the operations of grinding, polishing and satin finishing of metal articles, such as tubes and plates, it is necessary to use several machines, which It implies a great loss of start-up time for each machine when changing the dimensions of the tubes to work and when items are handled from one machine to another.

In conventional machines the pipes of square section is ground and polished face to face, which means that the tube must be passed four times through it machine, presenting the inconvenience of deforming by having it to go through the machine so many times.

In addition, in the current machines the articles they always go through the same area in contact with the elements of positioning and dragging and with the heads, which causes the deformation and wear of these elements and damages the finish of items when the dimensions of said items are changed articles.

Another drawback is that in the machines current mechanisms must be corrected manually when used with articles of different dimensions, which implies a high idle period

Description of the invention

With the machine of the invention they are achieved solve the aforementioned problems, presenting other advantages that They will be described.

The machine for grinding, polishing and satin  of tubes and metal plates of the present invention comprises a plurality of grinding and polishing heads provided with consumables, a plurality of drag elements of the metal articles, and a plurality of positioning elements of said metal articles, and is characterized by the fact that said grinding and polishing heads are associated in pairs, the heads of each pair being located substantially facing each other.

Thanks to this feature, you can grind, polish and satin two sides of the tubes and plates same time, so that the steps of the tubes are reduced and plates by the machine to get its complete finish.

In addition, with the machine of the present invention a longitudinal polishing can be achieved, which has a finish improved compared to conventional radial polishing.

Advantageously, the heads are movable laterally and vertically, defining a reciprocating movement to get complete wear of consumables.

In this way, it prevents items to polish, grind and satin do not always go through the same area of contact, avoiding wear and accelerated deformation.

In addition, said heads are advantageously removably mounted and are vertically movable and sideways. Thus, the heads can be mounted and disassembled quickly, adapting them to the characteristics of the article that It has to grind and polish or the type of finish that is desired get.

Advantageously, said heads and said positioning elements are laterally movable and vertically, so that they can be easily adapted to different dimensions

Preferably, said grinding heads and polishing and said positioning elements are connected to electronic, pneumatic or hydraulic control means of numerical control, programmable logic controller (PLC) or positioner with computer, which determine its placement and drive These control means allow correcting automatically the position of the machine elements to adapt to the dimensions of the items being ground and polish

Brief description of the drawings

For a better understanding of how much has been exposed Some drawings are accompanied in which, schematically and only to non-limiting example title, a case study of realization.

Figure 1 is a schematic elevation view front of the machine of the present invention; Y

Figure 2 is a schematic elevation view side of the machine of the present invention.

Description of a preferred embodiment

As can be seen in Figure 1, the grinding, polishing and satin machine of the present invention understands:

- a plurality of grinding heads, polishing and satin 1 provided with consumables;

- a plurality of drag elements 2 of metal tubes and plates; Y

- a plurality of positioning elements 3 of said tubes and metal plates.

Heads 1 perform the function of grind, polish and satin metal tubes and plates.

For its part, the drag elements 2 transport said tubes and plates along the machine, passing through said heads 1, and the positioning elements 3 guarantee the correct positioning of the tubes and plates for the use of said heads 1.

According to the invention, said heads 1 are associated in pairs, being placed substantially facing each other, facing each other, as you can see in the Figure 1, one over the other, or next to each other, or any properly.

Said heads 1 are movable laterally, defining a reciprocating movement to wear the entire consumable, and vertically, to fit the dimensions of the tubes and plates to be polished and grind.

In figure 2 you can see the two means  of driving said head movements 1. In specifically, the machine comprises a first motor 4 that drives the vertical movement of said heads 1, and a second motor 5 which drives the reciprocating movement of said heads 1.

As stated above, said reciprocating movement prevents tubes and plates from being in contact always in the same area of the head consumable, allowing uniform wear of the head 1 consumable.

In addition, the consumables of said heads 1 they are removably mounted, that is, they can be placed and Easily remove when desired.

The positioning elements 3 are movable vertically and laterally, to adapt to dimensions of tubes and plates.

All the scrollable elements of the machine, such as heads 1 and positioning elements 3 are connected to electronic or pneumatic control means of numerical control, programmable logic controller (PLC) or positioner with computer (not shown), which determine automatically positioning and movement of all these elements depending on the parameters entered, for example the dimensions of the articles to grind and polish.

It should be noted that several can be grouped machines of the present invention to achieve a complete cycle grinding, polishing and / or satin without changing the consumables of polishing heads. It should also be indicated that in the figures a machine has been represented in which the heads are placed vertically, however, it should be understood that the arrangement of the heads and the rest of the components of the machine can be any suitable.

Although it has not been represented in the figures, it is envisioned that the machine of the present invention can comprise a magazine, bagger and tube unloader and plates, allowing said tubes and plates to remain stacked

Although reference has been made to a concrete embodiment of the invention, is evident to an expert in the matter that the described machine is susceptible of numerous variations and modifications, and that all the details mentioned they can be replaced by technically equivalent ones, without depart from the scope of protection defined by the attached claims.

Claims (7)

1. Machine for grinding, polishing and satinizing metal pipes and plates, comprising a plurality of grinding and polishing heads (1) provided with a consumable, a plurality of drag elements (2) of the metal articles carrying said metal articles along said heads (1), and a plurality of positioning elements (3) of said metal articles, characterized in that said grinding and polishing heads (1) are associated in pairs, the heads being located (1) of each pair substantially facing each other. 2. Machine according to claim 1, characterized in that said heads (1) are laterally movable, defining a reciprocating movement to completely wear out the consumable. 3. Machine according to any of the preceding claims, characterized in that the consumable of said heads (1) is removably mounted. 4. Machine according to any of the preceding claims, characterized in that said heads (1) are movable vertically and horizontally. 5. Machine according to claim 1, characterized in that said positioning elements (3) are laterally and vertically movable. Machine according to any of the preceding claims, characterized in that said grinding and polishing heads (1) and said positioning elements (3) are connected to electronic, pneumatic or hydraulic control means, which determine their placement and drive. 7. Machine according to claim 6, characterized in that said control means are numerical control means, programmable logic controller (PLC) or computer positioner.