SU32292A1 - Pipe making device - Google Patents

Description

In the technique known, the manufacture of pipes from paper tapes impregnated with heated bituminous substance, spirally wound onto a hollow shaft that receives translational motion from the feed rollers.

In the proposed device, for the manufacture of paper tapes, in order to facilitate the removal of the manufactured tube from the hollow shaft, the latter consists of several cylindrical parts cut along the longitudinal rod resting on the support rings or ball bearings, which form and assembled.

In FIG. 1 shows the proposed device in a perspective view, and FIG. 2-part.

Thin paper ribbons 2 are impregnated in baths 7 containing molten bituminous substances and wound on a metal hollow shaft 3 moving translationally and rotationally between the hollow rollers 4 being reheated by steam. Paper tapes are spirally wrapped around each other by overlaying the .5 grooves with several loas.

101

The metal shaft 3 advances with: by means of a conveyor (5 through the hollow shaft 7, mounted on the headstock 8 between two rolls 9, which clamp it tightly.

Gear W, fortified on shaft 7; P4) is rotated in the direction indicated by the arrows, as a result of the wheel the coils 9 mounted on the shaft 7 will also rotate and impart rotational motion to the shaft 3- Together with the coils the small gear 7 / receives a rotational motion along the large gear 72 fixedly on the grandmother "S. The movement of the small pinion 77 drives the screw to 13, causing the gears 14 to rotate fixed on the coils 9. The rotating rollers attach the translational shaft 3, which, having translational and rotational movement, passes between two or three rollers 4 pressing the winding wheel into the pipe bitumen-saturated paper.

To facilitate the rotation of the rolls 4, it is possible to set them in motion at 75 waters. The rolls can have a surface — smooth-ground or grooved; in the latter case, the wound pipe will have an externally grooved surface, which is necessary for some industries. Since the wound bituminous paper 16 is difficult to remove from the metal hollow shaft 3, the latter is cut lengthwise into three parts, which are supported in the assembled bearing rings 19, mounted on the longitudinal rod 18. The support rings can be replaced with ball bearings. To assemble the shaft 3, it is necessary to lay three cut parts of it on the rod 18 and lock them at the ends with one of the types of locks. At the same time, these same locks should make it possible to connect individual shafts on the move. For continuity of production.

After winding the bitumen-paper tube is cut with a knife at the place of the lock, from

the rod 18 is pulled out thereof, as a result of which the three parts of the shaft 3 are scattered and freely pulled out of the bitumen-paper tube.

The subject matter of the invention.

Claims (2)

1. A device for the manufacture of tubes of paper tapes impregnated with a bituminous substance, spirally wound onto a hollow shaft, characterized in that the hollow shaft is made of several parts, in order to remove the manufactured tube from it, each of which is a part of a hollow cylinder forming, which parts in the assembled state are at rest on the support rings fixed on the longitudinal rod. 2. The form of the device according to claim 1, characterized in that the support rings are made in the form of ball bearings.