SU1454725A1 - Line for continuous manufacturing of sheet plastic laminates - Google Patents

Abstract

The invention relates to equipment for the production of laminated plastics in a continuous manner and can be used in the chemical and electrical industries. The purpose of the invention is to increase the reliability of the design and improve the quality of laminated plastic. For this, the impregnation unit is made in the form of a sealed vacuum chamber with a removable upper part 1 and a lid 2, sealed with a gasket ush, elements 12 around the perimeter, cassettes 10 for filler rolls with centering cone

Description

one

The invention relates to equipment for the continuous production of laminated plastics and can be used in the chemical and electrical industries.

The purpose of the invention is to increase the reliability of the design and improve the quality of laminate.

FIG. 1 is a schematic of a line for the continuous fabrication of sheet laminates, a longitudinal section; in fig. 2 is a section A-A in FIG. one; in fig. 3 - sealing unit of the vacuum chamber cover.

The line for the continuous manufacture of sheet laminates contains an impregnation unit comprising a vacuum chamber from the upper removable part 1, an additional chamber with a lid 2 and the lower part 3 — the actual vacuum chamber with heating plates 4, to which the impregnation chamber 5 is adjacent, heated by heaters b and provided at the outlet with a module 7 for controlling the content of the binder in the roll filler, the system 8 for preparing and supplying the binder to the impregnation chamber 5 and the vacuum station 9 connected to the vacuum chamber Vani. A cassette 10 for filler rolls with centering conical tips 11 is installed in the upper part 1 of the vacuum chamber, and sealing elements 12 are installed between the lid 2 and the upper part 1, and also between the upper 1 and lower 3 parts of the chamber.

Behind the impregnation unit, a prepolymerization unit is mounted, which includes a chamber 13 with radiators 14 installed with adjustable position relative to plastic, blowers 15 for supplying hot (cold) air and air ducts 16 for removing volatile, and also a foil heating chamber 17 arranged at an angle 30-45 ° to the axis of the camera 13 and adjacent to its exit. The chambers 17 are equipped with 18 m heaters by means of 19 foil coiling, and laminating drums are installed at the exit of them.

20 for bonding plastic layers. Behind the prepolymerization unit, final polymerization chambers 21 are mounted with shafts 22 for molding plastic, transport unit 23, cutting mechanism 24 and table 25

packaging.

The uniform tension of the long roll filler is ensured by the brake 26 connected to the shafts 27 of the rolls of the filler on the cassette 10.

The proposed line can be located horizontally.

Lini works as follows. A cassette 10 with filler rolls is installed in the upper part 1 of the evacuation chamber using centering tips 11, the filler is filled between the line nodes and the lid 2 is closed. The necessary gaps between the elements of the module 7, the laminator drums 20, shafts 22 are installed. on the plates 4, the heaters 6, the radiators 14, the heaters 18 of the foil and in the chambers 21. The binder is fed into the impregnation chamber 5 from the system 8 of its preparation and supply. The speed of the web material is set and the drive of the transport unit 23 is activated. In this case, the filler, winding off the coils, passes the vacuum chamber, where moisture and air are removed from it by means of a vacuum and a temperature of 150-200 ° C created by the plates 4.

Then the filler enters the impregnation chamber 5 and is impregnated with the preheated binder heaters 6 when dipping, the excess binder is pressed by the module 7 in the form of semi-cylindrical or cylindrical elements. The impregnated filler enters the prepolymerization unit.

In the chamber 13 of the prepolymerization unit, the filler is subjected to a combined thermoradiation and convective drying using emitters 14 and blowers 15, the volatiles are removed through the air ducts 16. Supplied from the winding means 19 is heated in the chambers 17 by foil laminators 20 applied to the multilayer material. Further, in the chamber 21, the multilayer material is subjected to heat treatment until complete curing at a given pressure of the shafts 22, is cut into sheets of the required size by the cutting mechanism 24 and is packed on the table 25.

The use of the invention in the production of laminated plastics by improving the design of the line, increasing the reliability of its operation allows improving the quality of the multilayer material.

Claims (2)

1. A line for the continuous manufacture of sheet laminated plastics comprising a feed unit for layers of web material, a sealed material impregnation unit with a heated impregnation chamber, having binder supply means and an outlet slit in the lower part, and a vacuum chamber located above it through a partition, prepolymerization unit , means of feeding the foil from both sides of the middle layer with its heating chambers, drums for connecting the layers, 0 a final polymerization chamber, a transport unit and a cutting mechanism, characterized in that, in order to improve the quality of the laminate and the reliability of the construction, the impregnation unit is equipped 5 mounted on the evacuation chamber by an additional removable sealed chamber in which the node for feeding the layers of roll materials is installed, made in the form of a removable cassette with its centering tips. 0 2. Line according to claim 1, characterized in that the foil preheating chambers are angled to the installation axis and mounted at the exit of the prepolymerization unit, forming a common cavity in the lower part, with overlapping adjacent drums to join the layers to form an exit slit. guv Remove Jie / nyvi / x //////////////////////// WL Z.Z BUT Component / VOC feed ... binding-- 2b gn  12  9 Vacuum .