RU64131U1 - DEVICE FOR MANUFACTURING POLYMER SEALING PROFILES - Google Patents

Abstract

The utility model relates to the field of the chemical industry, namely, devices for the manufacture of sealing profiles. A device for the manufacture of polymer sealing profiles, contains a multi-extruded extrusion head housing, in which an interchangeable mandrel with forming channels of profile section is mounted with the possibility of fixation. The device is equipped with an interchangeable matrix having a cavity and installed with the possibility of centering a relatively mandrel, which is placed in the matrix cavity with the possibility of forming the inner contour of the products, while the mandrel forms a channel with the matrix cavity for forming the outer contour of the products. The device is equipped with an additional element installed at the output of the matrix with an opening for forming the outer contour of the products.

Description

The utility model relates to the field of the chemical industry, namely, devices for the manufacture of sealing profiles.

Known multi-armed head for the manufacture of a polymer furniture skid (see patent RU No. 2180287, class. B29C 47/12). Containing a housing in which a mandrel is located with a cooling system and forming channels of profile section. The mandrel is made of two sections of a segment section, between which a liner is placed.

Also known is a multi-strand extrusion head for polymer profile moldings (see patent RU No. 2116198, class B29C 47/12), taken as a prototype, comprising a housing in which an interchangeable mandrel is installed, which is made in a cross-like shape, forming channels profile section. The mandrel is installed in the housing using two half-cylindrical sections made with longitudinal grooves for fixing the mandrel.

The disadvantages of the known devices are the complexity of their design, low reliability, as well as an insufficient wide range of manufactured products.

The objective of the utility model is to simplify and increase the reliability of the device, allowing to expand the range of manufactured products.

The problem is solved due to the fact that the device for the manufacture of polymer sealing profiles containing the case of a multi-extruded extrusion head, in which the interchangeable mandrel with forming section channels is mounted with fixation, is equipped with an interchangeable matrix having a cavity and installed with the possibility of centering relative to the mandrel, which is placed in the cavity of the matrix with the possibility of forming the inner contour of the products, while the mandrel forms a channel with the cavity of the matrix to form the outer contour of the articles. In addition, the device is equipped with an additional element installed at the output of the matrix with an opening for forming the outer contour of the products.

The technical result is expressed in the fact that the claimed device has a simple and reliable design that allows you to quickly and easily make changes to products of various profiles (by replacing the mandrel, matrix or additional element), which significantly expands the range of manufactured products. In addition, the use of the claimed device can improve the durability, quality and appearance of the manufactured sealing profiles.

The device is illustrated in the drawing, which shows:

figure 1 is a General view of the device in section;

figure 2 is a section aa in figure 1;

figure 3 - section bb in figure 1;

figure 4 - view of figure 1

A device for the manufacture of sealing profiles comprises a housing 1 (Fig. 1), in which a matrix 2 is installed, having a conical cavity 3, tapering to the exit of the matrix. An interchangeable mandrel 4 is fixed on the housing 1 to form

the inner contour of the product with air supply channels 5. The matrix 2, with the possibility of centering the relatively mandrel 4, using the adjusting screws 6, is fixed in the housing 1 using the faceplate 7. The mandrels 4 with a cavity 3 of the matrix 2 form a channel 8 for forming the inner and outer contours of the products (the inner contour of the sealing profile is provided by the geometry of the mandrel 4, and the outer contour is provided by the geometry of the matrix 2). The housing 1 contains a cooling system made in the form of a channel 9 and a homogenizing grid 10 (Fig. 3). At the output of the matrix 2 (Fig. 1), an additional element 11 with an opening 12 (Fig. 4) can be installed to form the outer contour of the products.

The device operates as follows. The injection polymer melt injected by the screw of the extruder (not shown in the drawing) passes through the homogenizing grate 10 (Fig. 3) and enters the forming channels 5 (Fig. 1) of the mandrel 4 and into the channel 8 to form the outer contour of the products. Passing through the forming channels, the plastic melt is cooled and formed into a continuous profile-molded product.

If it is necessary to reprofile the multi-strand extrusion head, the faceplate 7 is removed, the adjustment screws 6 are loosened and the interchangeable matrix 2 is removed, and then the interchangeable mandrel 4 is removed.

Claims (2)

1. A device for the manufacture of polymer sealing profiles, comprising a multi-extruded die body, in which an interchangeable mandrel with forming section channels is mounted for fixation, characterized in that it is provided with an interchangeable matrix having a cavity and installed with the possibility of centering relative to the mandrel, which is placed in the cavity of the matrix with the possibility of forming the inner contour of the products, while the mandrel forms a channel with the cavity of the matrix for the formation of nar zhnogo circuit products. 2. The device according to claim 1, characterized in that it is equipped with an additional element installed at the output of the matrix with an opening for forming the outer contour of the products.