ES1059475U - Trocear wire machine (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Wire cutting machine, of the type comprising a straightening unit (1) of the wire whose outlet is in line with a unit of rollers (7) and (8) traction arranged to advance the wire along an axis geometry (9) of feeding the machine, which are aligned with a tightening wheel (11) that keeps the wire in permanent contact with a measuring wheel (12) that is connected to a programmed numerical control unit, characterized in that it comprises clutch means driven by a motor (14) whose output shaft (15) parallel to the path of the wire moves an eccentric (16) articulated to a connecting rod (17) provided with an end tail (18) that affects its reciprocating movement in the hollow (19) of a sliding piece (20) blade holder, arranged to receive in the cavity (19) an arm (22) movable by an electromagnet (27) commanded by the program of the numerical controller, which has a lateral recess (23) ) from the tail (18) of the connecting rod (17) that is locked with the arm (22) dragging in its movement the slide (20) blade holder (21) to cut the wire (32) and back to its initial position leaving the movable arm (22) is released to another cutting cycle. (Machine-translation by Google Translate, not legally binding)

Description

Wire cutting machine.

The invention relates to a slicing machine wire of general application in the wire drawing industry and particular use in the manufacture of armor for lampshades, formed with hoops and / or bridges of different shapes and dimensions to stiffen the edges of the foils constituting the screen or acting as a support for support of said reinforcements on the wall, ceiling or foot of lamp.

The wire cutting machine, object of the invention, presents the uniqueness of understanding an arrangement of clutch aligned behind the straightening units and wire stretching, which allows through a slide knife holder automatic and continuous portion cutting wire length indicated by a measuring wheel at a numerical control program of the cut.

For this purpose, the sliding knife holder is selectively moves guided to the wire to effect its cut when clutch a half drag of the driven slide by an engine, with another locking means or link of said means of drag with the slide that is externally operated by a electromagnet and is commanded by the numerical control program It regulates the length of wire to be cut.

The invention has also provided for the provision of a tilting ejector that is associated by its free end with a section of a guide inside whose portion is housed of cut wire, which is pulled out of the guide by the own guide sector that together with the ejector swing together by the impulse received from the sliding knife holder part in its displacement to perform the wire cutting.

In the current state of construction technique Applied to the manufacture of wire cutting machines, and it is known that the machine comprises a unit to straighten the wire continuously, since initially the wire is supplied from a coil and therefore is curved.

The passage of the wire through the straightening unit is  pulled by a drive roller unit arranged in line at the exit of the straightening unit to advance the wire along a geometric axis feeding the machine.

These wire drag rollers remain aligned with a clamping wheel that keeps the wire in permanent contact with a measuring wheel the length of the wire that is connected to a numerical control unit programmed, which processes the length to be cut automatic wire.

However it is unknown in this type of machines the arrangement of a clutch in line behind the units of straightening and dragging the wire that allows cutting continuous of the portion of wire measured by the measuring wheel in its turn.

For this purpose, the wire cutting machine It is characterized in that it comprises driven clutch means by a motor whose output axis parallel to the wire path move an articulated eccentric to a connecting rod provided with a tail extreme that affects its alternative movement in the cavity of a sliding knife holder.

Said slide is arranged to accommodate in your  cavity an arm movable by an electromagnet commanded by the numerical controller program, which features a recess side of the tail of the connecting rod tail locked in the arm dragging in its movement to the sliding knife holder until cutting the wire and back to its initial position leaving released the movable arm until another cutting cycle.

The invention is also characterized in that the Sliding knife holder in its cutting displacement acts on a ejector lever that is associated with a higher sector of guide through which the section of cut wire runs, in whose rotation the lever displaces the guide sector that pushes the wire outside the machine for collection.

The characteristics of the slicing machine wire, whose registration is requested, have been studied, both in order to meet the demands of the consumer as to the resolution of planned production needs, obtaining a time, simplicity in its manufacturing process and notable cheaper in manufacturing costs.

For more understanding of it so far exposed, is accompanied by the present specification of a game of drawings in which the object of the invention is shown, without that it should be understood that the graphic representation referred to constitutes a limitation of the peculiar characteristics of this request.

Figure 1 .- Represents an elevation view side of the wire cutting machine, according to a form of planned execution. It shows the straightening unit of the wire in line with the wire pulling roller unit that are aligned with a clamping wheel that maintains the wire in permanent contact with a measuring wheel of the wire length and in linear extension is the arrangement of the clutch of the wire cutting unit.

Figure 2 .- Illustrates a top plan view of the wire cutting machine, object of the invention.

Figure 3 .- Shows a front elevation view of the clutch device of the cutting unit of the machine chop wire.

The following are detailed and list the different components that make up the machine cut wire, according to the planned execution method.

Looking at the first and second figures it turns out appreciable that the wire cutting machine is constituted by a wire straightening unit formed by a housing cylindrical (1) provided with a narrower inlet neck (2) and outlet (3), both of the same diameter as the wire.

The wire straightening housing (1) is supported on bearings (4) and receives the rotating movement of a motor (5) through transmission belts (6).

The output of the straightening unit is in line with a unit of traction roller pairs (7) and (8) that make advance the wire that runs between each pair of rollers at along a geometric axis (9) feeding the machine.

These rollers are driven by a motor (10) and are aligned with a clamping wheel (11) that keeps the wire in permanent contact with a measuring wheel (12) that is connected to a numerical control unit programmed.

In linear extension to the traction rollers The cutting unit comprising a guide (13) of wire inlet to a shaped clutch arrangement by a motor (14) whose output shaft (15) is parallel to the path of the wire and transmits the movement to an eccentric (16), which It has an articulated connecting rod (17) provided with a tail (18).

Said connecting rod tail comes in and out with a alternative movement on one side of the recess (19) of a Sliding part (20) carrying the cutting blade (21).

Inside the cavity of the piece sliding arm moves (22) provided with a recess (23) for fitting or locking the connecting rod tail.

The arm (22) is articulated (24) to another section arm (25), which in turn is articulated to a fork (26) linearly related to the piston of an electromagnet (27) commanded by the numerical controller program.

There is also an extractor lever. (28) tilting on a horizontal axis (29) arranged on a guide (30), whose upper sector (31) is associated with the free end of the lever and through which the wire runs inside the guide cut (32).

All this is arranged so that the engine (14) move the eccentric (16) and this in turn moves the crank (17) with an alternative displacement that makes its tail (18) can enter and exit the side gap (19) of the sliding part (twenty).

The electromagnet (27) moves the arm (22) into the cavity of the slide, orthogonal to that of the crank displacement, when receiving instruction from numerical controller that the wire length is the programmed To be cut.

In said displacement the arm (22) faces its  recess (23) with the tail (18) of the connecting rod, leaving transversely locked both bodies and therefore one's own slide (20) in whose cavity (19) the arm (22) is housed.

In this way linked the bodies, the connecting rod (17) drag in a direction of its movement to the slide (20) to the wire, cutting it through the extreme blade (21), to then go back in the opposite direction until you take the piece sliding to its initial position where the arm is released from the connecting rod tail to start a new cutting cycle.

The slide (20) in its drag to perform cut, acts on a ejector lever (28), through a horizontal stem (33) that is housed in a filleted area (34) of the sliding piece.

Said sliding piece pushes in its displacement horizontal to the lever by tilting it around the axis horizontal tilt (29) that separates the upper sector (31) from the guide (30), inside which is the portion of cut wire (32) which is pushed by the guide sector itself outside the machine for collection.

Claims (2)

1. Wire cutting machine, of the type comprising a straightening unit (1) of the wire whose output is in line with a unit of rollers (7) and (8) of traction arranged to advance the wire along an axis Geometric (9) of machine feeding, which are aligned with a clamping wheel (11) that keeps the wire in permanent contact with a measuring wheel (12) that is connected to a programmed numerical control unit, characterized in that it comprises clutch means driven by a motor (14) whose output shaft (15) parallel to the wire travel moves an eccentric (16) articulated to a connecting rod (17) provided with an end tail (18) that affects its alternative movement in the cavity (19) of a sliding piece (20) knife holder, arranged to accommodate in the cavity (19) an arm (22) movable by an electromagnet (27) commanded by the numerical controller program, which has a lateral recess (23 ) of e n the tail of the tail (18) of the connecting rod (17) that is locked with the arm (22) dragging in its movement to the slide (20) knife holder (21) until cutting the wire (32) and back to its initial position leaving released the movable arm (22) until another cutting cycle. 2. Wire cutting machine, according to claim one, characterized in that the slide (20) knife holder (21) in its cutting displacement acts on an ejector lever (28) that is associated with an upper guide sector (31) whose interior the section of cut wire (32) runs, in which rotation the lever (28) moves the guide sector (31) that pushes the wire (32) out of the machine for collection.