SU778892A1 - Die for producing articles such as sleeves - Google Patents

Description

(54) STAMP FOR THE PRODUCTION OF TYPE PRODUCTS

one

The invention relates to the processing of metals by pressure, in particular to the design of dies for the manufacture of articles such as cups with thickenings. five

A stamp is known for making articles of the type of glass with a thickening of mi- containing a matrix, a lower abutment and a punch placed in its axial groove with the possibility of axial displacement and fixing the position of a spring-loaded abutment i.

The disadvantages of the known stamp are the low quality and increased cost of products when they are prepared with an internal profiled end thickening.

The purpose of the invention is to increase the quality and reduce the cost of the products obtained when making them with JQ inner profiled end thickening. .

The goal is achieved by the fact that the spring-loaded stop is made of a composite of the supporting and removable end parts, while the supporting part is made with a profiled side surface in accordance with the thickening profile of the product being manufactured, and the removable end part is adjustable by the GLASS

largest transverse section, for example, as a set of sectors spring-loaded among themselves.

The drawing schematically shows the proposed stamp.

The stamp comprises a punch 1, inside of which a spring-loaded stop is placed, consisting of a supporting part 2 and a removable end part 3. The supporting part 2 is guided along the punch 1 and has a profile on the side surface that corresponds to the profile of the resulting product cone. The lower position of the part 2 relative to the punch 1 is fixed by means of a spring-loaded retainer 4, which can be made, for example, in a fork. The end removable part 3 of the stop is guided along the cone of the support part 2 and is a set of sectors pressed by an annular spring 5. The stamp also contains a matrix b, a lower stop 7, an upper spring-loaded puller 8, as well as a stopper 9 and a spring 10 for pressing the support {) Noah part.

In the initial position, the support part 2 of the stop is rigidly fixed by the lock 4 in the punch 1, the end part 3

is pressed by the spring 5 to part 2 and during the course of the punch 1 down the protrusion from the punch, the part yftopa performs the functions of a 1-pull punch.

At the moment of contact of the bottom of the workpiece 1 with the stop 7, the punch 1 continues to move down. In this case, the latch 4 releases the support part 2 of the abutment, pressing the part 3 on the KO, continues to fix the workpiece in the matrix b, the punch 1 is guided along the matrix and acts on the end of the workpiece, the flow of metal to the center causes the internal protrusion of the resulting product.

During the return stroke of the press ram upwardly, the punch 1 first rises, releasing the latch 4, which now firmly connects the punch with the part 2 of the abutment. Upon further lifting, this part: the stop comes out of the molded product and is disconnected from the bottom part of the 3-stop.

After the release of part 3, the spring 5 reduces the sectors of part 3 and their outer size becomes smaller than the size of the inner surface of the core section of the product.

If the part rises along with the punch, remove it from the profile section of part 2 of the stop and secure the upper remover 8. If the part remains in the die, it is ejected by the lower stop 7, which can be lifted with a buffer, pusher or pneumatic control of the press.

The end portion 3 of the abutment can be removed from the product after togr as the product is released from the die.

The use of the proposed device allows one type of glass product with a given profile end thickening at high quality and lower cost price to be molded in one stamp in one stroke of a press.

Claims (2)

1. A mold for the manufacture of articles such as a glass with thickenings, containing a matrix, a lower abutment and a punch. placed in its axial groove with the possibility of axial movement and fixation of the position of the spring-loaded stop, differing from the fact that, in order to improve the Quality and reduce the cost of the products obtained in the manufacture of them with an internal shaped end thickening, the spring-loaded stop is made of a base and removable the end parts, while the supporting part is made with a profiled side surface in accordance with the profile of the thickening of the product being manufactured, and the removable end part is adjustable in size not cross section. 2. A stamp according to Claim 1, characterized in that the end portion of the spring-loaded abutment is made in the form of a set of sectors spring-loaded with each other. Sources of information taken in. attention during examination 1. USSR author's certificate 277-708, cl. B 21 D 37/08, 1966. 9 W / 7 /// ////// 7 /////// y ///////////////// I