SU368053A1 - DEVICE FOR FORMING SHELLS FROM GLASS-PLASTIC - Google Patents

Description

one

A device for molding fiberglass casings is known, consisting of an annular vaine for impregnating the cords, a molding unit, a winding mechanism, supplying with drives for rotating and moving the mandrels, cutting and detachable mechanisms and a polymerization chamber.

The proposed device is characterized in that, in order to direct and evenly lay the harnesses around the mandrel of conical shape and fix the mandrel when wrapped with transverse reinforcement, the device is equipped with adapters made in the form of stars, rigidly mounted on mandrels and directly in contact with the cutting mechanism. To simplify the process, the pieces of the harness are driven by the movement of the mandrels equipped with limit switches.

FIG. 1 shows a sectional device and a mandrel connection unit; in fig. 2 - his general scheme.

Device. Includes reels / with glass fiber bundles; guide rollers 2; an annular impregnation bath 5 for impregnating glass fiber strands; cassette 4 with pressing strip for crimping mandrel; cassette 5 with filaments for transverse reinforcement of the cone; mandrels 6; adapters 7, made in the form of stars, between the teeth of which there are bundles; toolholder 8

For cassettes and 5; forming pipe P, in cavity 10 of which the mandrels b are inserted; screws // raising and lowering the winding mechanism; the shaft 12 of the drive holder of the cassettes; drive unit

13 lifting screws; the drive shaft 14 of the holder; knives 15, trimming the resulting conical billet at the exit of the pipe form; chain 16 (see Fig. 2) feeding the mandrels 6 into the forming tube 9; hooks 17,

supporting mandrel in the forming tube; puller 18, polymerization chamber 19; chain 20 for moving the conical billet in the polymerization chamber; hooks 21 for supporting the workpiece on the chain in the polymerization chamber; limit switches 22 and 25, which turn on and stop the winding mechanisms; capstan-stripper 2.

Dorn 6, covered with a separating layer (if necessary wrapped in transverse

the direction of the filaments) with inserted star-shaped adapters 7 is brought to the hole in the ring impregnation bath 3 by means of a feed chain / 5 with supporting hooks / 7. In the lower part of the adapter 7, the harnesses are fastened, which are located between its teeth. The harnesses are fed from reels / through the impregnation bath 3 and the guide rollers 2. Then the mandrel 6 is lowered along with the harnesses

into the forming tube 5. The feed of the mandrels 6 is realized by the feed chain 16 and, when the first adapter 7 enters the grooves of the forming tube 9 and the second adapter remains in the slots of the ring bath body 3 (at the lower position of the winding mechanism), the drive 13 turns on and stops the feed circuit 16. The winding is carried out along the entire mandrel 6 to the limit switch 22, which turns off the winding motor and Yu returns the winding mechanism to its initial lower position. The winding mechanism and the mandrel are fixed through the limit switch 23. The winding mechanism wraps the thread and 15 film with the mandrel 6 with bundles, lifting with screws 11. During the winding time, the knife supply mechanism 15 and the puller 18 turn on. Puller 18 unscrews the lower mandrel 6 and feeds it on hooks 21 of chain 20 of chamber 20 through limiting 19. After polymerization, the preform is removed c. 6 in the capstan collector 24. In the resulting conical billet, the wall thickness to a smaller diameter will be slightly larger depending on the taper of the 5 core, because the number of filaments in the reinforcing bundles remains constant along the length of the conical mandrel. According to the same scheme, instead of crimping with a tape, you can apply crimping with a cone matrix. THE INVENTION 1. A device for forming fiberglass shells, consisting of an annular bath for impregnation of tows, a molding unit, a winding mechanism equipped with drives for rotating and moving mandrels, cutting and detachable mechanisms, and a polymerization chamber, characterized by the device is equipped with adapters made in the form of asterisks rigidly fixed on mandrels and n for the purpose of directing and even laying the bundles around the mandrel of conical shape and fixing the mandrel when winding with transverse reinforcement Directly in contact with the cutting mechanism, 2. The device according to claim 1, characterized in that, in order to simplify the process of cutting the rope, the movement curve of the mandrels is equipped with limit switches.

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