RU2323827C2 - Methode of tube producing - Google Patents

Abstract

FIELD: production methods.

SUBSTANCE: method of tube producing includes the nonstop material rolling from traversing mechanism to arbor and moving of the tube on it through the polymerization chamber to the direction of output. Producing of the tube is made with dashed moving on the arbor by hydro-pusher and reciprocative moving of the traversing mechanism. The moving of the hydro-pusher is done with speed two times more then the speed of the traversing mechanism.

EFFECT: method led to exceed the list of polymer tube products and provides the solid spiral winding of the material.

5 cl, 2 dwg

Description

The invention relates to the field of pipes, more specifically, to methods for their manufacture.

A known method of manufacturing a pipe, including the continuous winding of material from the spreader to the mandrel and moving the pipe through it through the polymerization chamber in the direction of descent from the mandrel - see.with. 234650 B29D 23/12 on "Device for the continuous manufacture of fiberglass pipes", which implements the above method.

According to its characteristics and the achieved result, this method is the closest to the claimed and adopted as a prototype.

In the known method, the continuous winding of material from the yarn spreader (bobbin 2) onto the mandrel is carried out while continuously moving the wound pipe along the mandrel in the direction of its descent from the latter.

The disadvantage of this method is the limited technological capabilities.

This disadvantage is explained by the impossibility of obtaining pipes with bulges (collars) due to the rigid kinematic connection of the rotation of the mandrel and the simultaneous movement of the pipe along it in the direction of descent.

The objective of the invention is to expand the technological capabilities of the method.

This problem is solved by improving the method of manufacturing a pipe, including the continuous winding of the material from the spreader to the mandrel and moving the pipe through it through the polymerization chamber in the direction of descent.

The improvement consists in the fact that the pipe is manufactured with intermittent movement of the pipe along the mandrel by long-stroke hydraulic pushers; pipe movement along the mandrel is carried out by two hydraulic pushers; the movement of the hydraulic pushers is carried out with the simultaneous movement in the same direction of the spreader; the movement of the hydraulic pushers is carried out at a speed twice the speed of the yarn spreader.

The manufacture of a pipe with intermittent movement of its mandrel by long-stroke hydraulic pushers allows you to expand the technological capabilities of the method, thereby increasing the range of wound pipes, performing them, for example, with thickenings (collars) or with multi-pass winding of material from one threading machine.

Moving the pipe along the mandrel with two hydraulic pushers provides the implementation of the method while simplifying the design of the machine.

The movement of the hydraulic pushers with the simultaneous movement in the same direction of the spreader allows screw winding of the material, for example, with a large pitch or lap.

Moving the hydraulic pushers at a speed twice the speed of the yarn spreader allows for continuous spiral winding of the material with intermittent movement of the wound pipe along the mandrel.

Below, with reference to the accompanying drawings, where shown in:

Figure 1 - diagram of the machine for the continuous manufacture of pipes;

Figure 2 - diagram of the manufacture of pipes with the simultaneous movement of the pushers and threading device,

a description of the proposed method.

A method of manufacturing a pipe involves continuously winding the material 1 from the yarn spreader 2 onto the mandrel 3 and moving the pipe 4 along it through the polymerization chamber 5 in the direction of exit from the mandrel 3. The manufacture of the pipe 4 is carried out with intermittent movement of it along the mandrel 3 long-stroke (for example, equal to the length of the polymerization chamber ) hydropushers 6, 7, which allows you to expand the technological capabilities of the method, due to which to increase the range of wound pipes and use different types of mandrels.

The movement of the pipe 4 along the mandrel 3 is carried out by two hydraulic pushers 6, 7, which ensures the implementation of the method while simplifying the design of the machine.

The movement of the hydraulic pushers 6, 7 is carried out with the simultaneous movement in the same direction of the spreader 2, which allows for the regulation and preservation of the direction and angle of the screw winding of the material 1 when moving the pipe.

The movement of the hydraulic pushers 6, 7 at a speed twice the speed of the yarn spreader 2 allows for uniform spiral winding of the material 1 during intermittent movement of the pipe 4.

The manufacture of pipes according to the proposed method is shown in the example illustrated in FIG. 2.

In the process of winding the material 1 on the mandrel 3, the spreader 2 with a speed of V and the hydraulic pushers 6, 7 with a speed of 2V are simultaneously moved to the right according to the drawing, which ensures the winding of the pipe 4 along the mandrel 3 relative to the spreader 2 with a speed of V to the right in the drawing (in the direction of exit from mandrels 3). At the end of the stroke of the hydraulic pushers 6, 7, to the right simultaneously reverse the movement of the hydraulic pusher 6 and the spreader 2 and move them at the same speeds to the left according to the drawing, and after stopping the hydraulic pusher 6 in the leftmost position, the hydraulic pusher 7 follows it (in this case, the axial feed of material 1 by a spreader 2 without vanishing the pipe from the mandrel, since the sectors 8 and 9 of the latter, connected with the pushers 6, 7 and moved separately, slide along the surface of the wound material 1 and pipe 4).

When the pusher 7 reaches its extreme left position, its movement and the movement of the threading device 2 are reversed and they are moved to the right according to the drawing simultaneously with the pusher 6, repeating the above cycle.

The implementation of the cycle provides a spiral winding of the material 1 with a constant angle during the course of the yarn spreader 2 and the hydraulic pushers 6, 7 both to the right in the drawing and to the left.

In addition, the proposed method allows you to perform other options, for example, to produce pipes with flanges or with spiral cross winding, or use other types of mandrels when winding, for example, one-piece, as in our prototype.

A method of manufacturing a pipe according to the invention has, in comparison with the prototype, wider technological capabilities.

Claims (5)

1. A method of manufacturing a pipe, including continuously winding the material from the spreader onto the mandrel and moving the pipe along it through the polymerization chamber in the direction of descent, characterized in that the pipe is produced with intermittent movement of the pipe along the mandrel with hydropushers and reciprocating movement of the spreader. 2. The method according to claim 1, characterized in that the movement of the pipe along the mandrel are two hydropushers. 3. The method according to any one of claims 1 to 2, characterized in that the movement of the hydraulic pushers is carried out with the simultaneous movement in the same direction of the yarn spreader. 4. The method according to any one of claims 1 to 3, characterized in that the movement of the hydraulic pushers is carried out at a speed twice as fast as the yarn spreader. 5. The method according to any one of claims 1 to 4, characterized in that the pipe is moved by moving the mandrel sectors by two hydraulic pushers with simultaneous movement in the same direction of the threading device at a speed half the speed of the pushers, at the end of which one pusher is stopped, and the movement of the spreader and the second hydraulic pusher reverse and move them at the same speeds in the opposite direction, and when the extreme position is reached, the second hydraulic pusher is stopped, and at the same time I move first Hydropusher, on reaching the end position that its motion is reversed and the traverse control movement and simultaneously moving in the same direction as the first Hydropusher repeat cycle.

Images