SU1447479A1 - Die for forming articles from flat blanks - Google Patents

Abstract

The invention relates to the processing of metals by pressure n can be used for stamping products from flat blanks. The purpose of the invention is the expansion of technological capabilities by ensuring the automation of the removal of products from the matrix die at the upper position of the movable plate. The product is stamped from the blank in the die as the movable plate moves towards the fixed plate. On a fixed plate there is a matrix, in which there is a poomsoy. On the punch movably mounted puller. A punch-matrix is fixed on the movable plate, in which the ejector, which is spring-loaded to the punch, is movably mounted, and the pressure-puller, which is spring-loaded to the matrix, is mounted. The stamp has a braking unit in the die-die. The braking unit is made in the form of L-shaped double-arm levers, hinged in a clamp-remover with the ability to interact with one of the ends with a punch. The other end of the two shoulders levers is spring-loaded and interacts through the push rods with the ejector. The pushing rods are movably mounted in radial holes made in the die matrix. Through the grooves for the passage of the ends of the double-arm levers are also made in the die-die. In the movable plate, grooves are made to accommodate the ends of the double-arm levers. 3 hp ., f-ly, 2 ill. cl

Description

four:

.four

d

Nl

WITH

The invention relates to the cold working of metals by pressure and can be used to process strip and strip material.

The purpose of the invention is the expansion of other operations, such as hole punching, embossing, etc., can be performed. During the slide up stroke, the part 24 is removed from the punch 4 by the puller 5 and, together with the punch matrix 7 of variable capabilities, is secured upwards. In this case, the ends of the 28 levers

neither the ability to automate the removal of 21, facing the part 24, slides over its

products from a punch-matrix with upper side walls, are lowered relative to

the position of the movable plate. parts 24 and in the lower position of the pin. FIG. , 1 shows a stamp for the strain remover 9; the ends abut against the side of the products from flat blanks; the wall of the part and support it until

FIG. 2 shows section A-A in FIG. 1. a certain stroke of the slide press up.

The stamp contains the lower fixed plate 1, the upper movable plate 2, the matrix 3, mounted on the plate 1, the punch

4 mounted on the plate and positioned. When the press slide approaches the upper position, the workpiece 24 is pushed out of the die cavity 7 by acting on the yoke 14 through

coaxially with matrix 3, puller 5, installer 17 of the upper mechanism pushed out on plate 1 with the possibility of interchanging parts (not shown). Traverse 14,

interchange

thirty

in the vertical direction, spring-loaded in this direction by the springs 6 and located between the die 3 and the punch 4, the punch-matrix 7 fixed by means of the holder 8 on the plate 2, the clamp-puller 9 carrying the guide rods 10 movably mounted in plate 2, springs 11 mounted on rods x 10 and located between plate 2 and the stripper 9.25

In the die-matrix 7, an ejector 12 is movably mounted, connected by screws 13 with a cross-beam 14, which is movably mounted in a plate 2 and interacting via a rod 15 with a movable part of a press (not shown). The traverse 14 is spring-loaded in the vertical direction by the springs 16 and is provided with pushers 17. In the plate 2, between the traverse 14 and the ejector 12, the pusher 18 is movably mounted in the vertical direction. In the puller-clamp 9, grooves 19 are mounted two shoulders levers 21, spring-loaded springs 22 and interacting with ends 23 and parts 24 of a strip that is stamped from material 25 or 40 tapes. In the side walls (sides) of the die matrix 7, grooves 26 are provided for moving the ends 23 of the double-arm levers 21 and the holes for mounting the push rods 27, which cooperate with the pushrods 17 and with the ends of the 28 double-arm levers 21. In the holder 8 and the plate 2 grooves 29 are made for the passage of the ends of the two shoulders 28 of the double-arm 21.

The stamp works as follows.

After the material 25 is fed into the working area, a press slide stroke (not shown) is made and the workpiece is cut down on the matrix 3 with a die 7 and with further clamping of the shtamp tool for extracting the part 24 on the die 4 using a puller 5. when the working parts of the punch are closed, the forming of 24 stiffeners at the bottom of the part is carried out;

50

moving down, it acts on the ejector 12 and rotates the levers 21 around the axis 20 with the help of pushers 17 and pusher rods 27 and brings the levers 21 out of contact with part 24, releases it and pushes it out of the die cavity 7. Next the cycle repeats.

Claims (3)

1. A stamp for stamping articles from flat blanks comprising a fixed and movable plate, a matrix mounted on the fixed plate, a punch fixed on the fixed plate and located in the matrix, a punch matrix mounted on the movable plate with the possibility of interaction with the matrix and the punch, an ejector movably installed in a punch-matrix and spring-loaded to the punch, a puller mounted on the punch and spring-loaded in the direction of the punch-matrix, and a clamp-pick-off peak mounted on a movable plate capable of interacting with the matrix and the matrix punch and spring-loaded to the matrix, characterized in that, in order to expand the technological capabilities by allowing the automation of the removal of products from the matrix punch at the upper position of the movable plate, it is equipped with a component braking unit mounted on the clamp - puller with the ability to interact with the punch. 2. A stamp according to claim 1, characterized in that the braking assembly is made in the form of double-arm L-shaped levers, hingedly fixed in the puller clamp and spring-loaded with springs which can be pivoted at one end with the punch, of pushers mounted movably in the radial holes made in a die-die with the possibility of interaction with the ejector and the other ends of the double-arm levers. other operations can be performed, such as hole punching, embossing, etc. During the slide up stroke, the part 24 is removed from the punch 4 by the puller 5 and together with the punch matrix 7 is moved up. In this case, the ends of the 28 levers As the press slider approaches the upper position, the part 24 is pushed out of the die cavity 7 by acting on the yoke 14 through pusher 17 of upper part ejection mechanism (not shown). Traverse 14, 0 n 5 0 0 moving down, it acts on the ejector 12 and rotates the levers 21 around the axis 20 with the help of pushers 17 and pusher rods 27 and brings the levers 21 out of contact with part 24, releases it and pushes it out of the die cavity 7. Next the cycle repeats. Invention Formula 1. A stamp for stamping articles from flat blanks comprising a fixed and movable plate, a matrix mounted on the fixed plate, a punch fixed on the fixed plate and located in the matrix, a punch matrix mounted on the movable plate with the possibility of interaction with the matrix and the punch, an ejector movably installed in a punch-matrix and spring-loaded to the punch, a puller mounted on the punch and spring-loaded in the direction of the punch-matrix, and a clamp-pick-off peak mounted on a movable plate capable of interacting with the matrix and the matrix punch and spring-loaded to the matrix, characterized in that, in order to expand the technological capabilities by allowing the automation of the removal of products from the matrix punch at the upper position of the movable plate, it is equipped with a component braking unit mounted on the clamp - puller with the ability to interact with the punch. 2. A stamp according to claim 1, characterized in that the braking assembly is made in the form of double-arm L-shaped levers, hingedly fixed in the puller clamp and spring-loaded with springs which can be pivoted at one end with the punch, of pushers mounted movably in the radial holes made in a die-die with the possibility of interaction with the ejector and the other ends of the double-arm levers. 1447479 34 3. The stamp according to claim. TQM, which is 4. The stamp of claim 1, wherein through the punch-matrix, that are made through the movable plate for grooves for the passage of the ends of the two shoulders rych-placement of the ends of the two shoulders levers, engaging with the push rods. 1 20 Fi & .2