SU407669A1 - STAMP FOR CUTTING PROFILE MATERIAL - Google Patents

Description

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The invention relates to the processing of metals by pressure.

Known stamps for cutting a profile material include a housing mounted on a frame, a knife rigidly fixed in the housing, and another knife interacting with it, mounted in the body guides, spring-loaded relative to it and cooperating also with the top plate of the stamp.

The aim of the invention is to obtain blanks with the ends, each pointing to the axis at a given angle.

For this, the housing is rotatably mounted relative to the bed in the plane of material supply by means of a mechanism connecting it with the upper plate, and is provided with a lock for its position relative to the bed.

The mechanism of body rotation can be made in the form of a two-arm lever coiled out on the frame, hinged one arm with the upper plate and interacting with the other arm with the pusher mounted on the frame and turning the rocker arm connected with the body. The pusher is spring-loaded relative to the frame and is installed with the possibility of rotation and reciprocating movement.

The rocker is located on an axis fixed on the frame and has two copiers, alternately through a cut interacting with the pusher and ensuring the rotation of the body in a given direction. The latch is spring-loaded relative to the bed.

In order to obtain blanks of the same length, the axis of rotation of the body coincides with the apex of the acute angle of the material to be separated.

FIG. 1 shows the proposed stamp;

in fig. 2 shows a section along A-A in FIG. one; in fig. 3-section bb on fpg. 2; in fig. 4 is a section along B - B in FIG. 3; in fig. 5 is a section along G - D in FIG. 2. The stamp contains a housing 2 mounted on the bed 1, in which the knife 3 is rigidly fixed. Nole 4 is placed in the body guides 5 and is spring-loaded relative to it. The body is installed with the possibility of rotation relative to the bed in the plane of supply

material through a mechanism linking it to the top plate 6.

The body rotation mechanism comprises a two-armed lever 7 mounted on the frame, which is pivotally connected to the upper plate and interacts with the pusher 8 turning the beam 9 connected to the body by the thrust 10.

The housing 2 is equipped with a latch 11, spring-loaded relative to the frame by the spring 12

and securing the housing on the bed in two

working fields at a given angle of the cutting plane to the material feed direction. The beam carries two copiers 13 and 14, alternately through a cut interacting with the pusher and determining the direction of rotation of the body.

The stamp works as follows.

The material is fed into the stamp until it stops (not shown in the drawing). When the press is turned on, the top plate 6, lowering, communicates with the knife 4, and the workpiece is separated from the material.

When the upper plate is lifted, the spring 15 returns the fire 4 to the upper position until it comes in contact with the stop 16. When the upper plate is lifted, i.e. during idle running, the body 2 rotates. At the same time, the end of the double-arm lever 7 touches one of the cam followers 8 after the knife 4 takes the upper position. The roller 17 of the pusher enters the copier and rotates the beam 9, and together with it through the trunk 10 and the body 2. The spring 12, pressing the latch And against the wall of the bed groove 18, rotates with the body and, after passing the dead point, itself rotates the body in the second working position.

During the working stroke of the press, roller 17 will move to the original polle, and during subsequent idle strokes will slide along another copy of the rocker arm. In this way, the material will be cut at either a right angle or an acute angle.

By replacing the latch with another with a sharper end 19, you can increase the angle of rotation of the body and thereby produce a piece of material at a different, sharper angle.

To obtain the same length of all blanks, the axis of rotation must coincide with the vertex of the acute angle of the material part to be separated.

Subject invention

Claims (2)

1.Stamp for cutting a profile material containing a housing mounted on a frame, a knife rigidly fixed in the housing and another knife cooperating with it, mounted in guides of the housing, spring-loaded relative to it and cooperating also with the upper plate of the plug, characterized in that, in order to obtain workpieces with ends facing each to the axis at a given angle, the housing is rotatably installed relative to beds in the plane of the material supply by means of a mechanism linking it with the top plate, and is provided with a latch for its hem for the bed. 2. A stamp according to claim I, characterized in that the turning mechanism is made in the form of a two-arm lever mounted on a frame, one shoulder pivotally connected with the upper plate, the pusher interacting with the other shoulder of the lever, spring-loaded with respect to the stanip, mounted on the frame with the possibility of rotation and reciprocating postunational movement; rocker mounted on an axle fixed on the frame, connected with the body and having two copiers, alternately through a cut interacting with the pusher and providing rotation of the body in a given direction, while the latch is spring-loaded relative to the bed. C Ti u2 g15 Riga 5 gd