SU1214462A1 - Installation for manufacturing corrugated pipes - Google Patents

Description

The invention relates to the processing of plastics and can be used in the manufacture of corrugated pipes from polymeric materials in the chemical industry, in mechanical engineering.

The purpose of the invention is to increase the productivity of the installation and its reliability.

FIG. 1 shows schematically the installation in the initial position, a general view; in fig. 2 - installation in the working position, general view; in fig. 3 - removable rod.

The installation contains a screw press with an extrusion head 1, a corrugator 2 and a centering device 3 with a removable rod 4 (FIG. 3).

The extrusion head 1 is provided with an elongated mouthpiece 5 with a landing gear 6.

The corrugator 2 consists of two chain conveyors 7 and 8 with semi-molds 9 attached to them. The conveyors 7 and 8 are mounted on the side guides 10, to one of them, for example conveyor 8, the centering device 3 is rigidly attached.

The centering device 3 consists of a sleeve 11 with a spherical outer surface that is installed in the housing 12 between the mounted sectors 13 with the help of bolts 14. The bore diameter of the sleeve 11 is equal to the outer diameter of the fitting 6 of the extrusion head 1. In addition, in the front part the sleeve 11 has a cylindrical juice 15, which is controlled, for example, by means of a dipstick, the alignment of the installation of the centering device 3 relative to the extrusion head 1 along the board 6. After installation vt.t1ki 1 1 for fixing the moving sectors 13 is designed clamping cover 16.

The removable rod 4 (Fig. 3) has an end portion 17, the outer diameter which is equal to the inner diameter of the half-molds 9 in the closed state of the corrugator 2, and the front C1 of the cylindrical surface 18, the diameter of which is equal to the diameter of the orifice of the sleeve 11.

When attacking the installation, the removable rod 4 serves to install the sleeve 1 of the centering device 3 coaxially with the closed half-molds 9, {fig. 1) Removable end rod

144622

part 17 is installed in the open half-molds .9, and the front cylindrical surface 18 is inserted into the hole of the fixed sleeve P. Closed, the half-forms 9 surround the end part 17, thereby automatically centering the relatively closed half-forms 9 sleeve 11. In this position, the sleeve 11 rigidly 10 is locked by sectors 13 and presser cover 16, after which when open half-molds 9 are detachable, rod 4 is removed (Fig. 3),

A further connection — the opening of 15 half-forms 9 does not affect the alignment, since the sleeve 11 through the housing 12 is rigidly connected to the lateral direction 10 of the conveyor 8.

0

five

0

five

0

five

0

five

For the operation of the installation (Fig. 2), it is necessary to combine the opening of the sleeve 11 with the landing gear 6 of the extrusion head i, for which the corrugator 2 moves towards the extrusion head 1 and the sleeve 11 with the spherical surface, slides over the landing juice 6.. sku 5, by moving the corrugator 2, align the axes of the centering device 3 and the extrusion head 15 of the centrifuge with the elongated mouthpiece 5 strictly coaxially with respect to the closed half-molds 9 in the product formation zone. Thus, the centering device 3 connects the corrugator 2 and the extrusion head 1 together after setting the working clearance, which, with the length of the corrugator 2 of approximately 4 m, should not exceed 1 mm and sometimes 0.75 mm between the half-molds 9 of the corrugator 2 and extrusion head.

Mutual fixation of the extrusion head and 1 of the screw press and the corrugator 2 prevents their displacement relative to each other in the course of work due to vibration, counterpressure, and efforts of the PROT51ZHKI THAT;

eliminates the contact of the extrusion head 1 and the half-molds 9 of the corrugator 2, their wear eliminates the need to make the half-forms 9 of solid-state expensive material and allows these elements to be made of aluminum, which makes it possible to significantly increase the heat removal from them, to increase productivity -3 times lower cost. Use centric

It is a long time to change without changeover (not shifts, but months of work), so as to ensure their equal thickness.

77

P

Editor E. Kopcha

Compiled by L.Koltsova Tehred A.Ach

834/24

Circulation 640 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, Proektna St., 4

ft 3

Proofreader E. Sirohman

Claims (1)

PLANT FOR MANUFACTURING CORRUGATED PIPES, comprising a worm press with an extrusion head and a corrugator made in the form of two closed conveyors to which half-molds are attached, characterized in that, in order to increase the productivity of the installation and its reliability, the installation is equipped with a centering device rigidly fixed to corrugator on the side of the extrusion head and made in the form of a sleeve with a spherical outer surface mounted in the housing between the sectors that are movably mounted Wherein at the outer surface of the die is configured to planting band entering the sleeve opening with outer diameter equal to the diameter of the sleeve hole. Yes. Fig.}