SU361891A1 - PIPE WRAP DEVICE - Google Patents

Description

one

The invention relates to a technique for plastics processing and can be used in land reclamation construction in the preparation of plastic drainage pipes for laying in the ground.

A device for wrapping pipes with a filtering material is known, which contains mechanisms for moving the pipe and applying filtering tapes to it, profile press rollers and a winding plate.

The proposed device is distinguished by the fact that, in order to improve the quality of the wrapper by automatically controlling the degree of tension of the tape, a shaft in contact with the tape is mounted between the mechanism for applying the tape pipe and the stitching rollers; and a swinging lever, on one of the shoulders of which the rollers are pressed against the shaft, and on the other - copiers interacting with the tape edges.

FIG. 1 shows the described device; in fig. 2 - tube wrapper assembly with filtering material; in fig. 3 - a device for active automatic control over the tension of the material of its material; in fig. 4 is the same, the section along Y-A in FIG. 3;

in fig. 5 is the same section bb in FIG. 3

The device includes a drum / dl coils

plastic pipes 2 mounted on

arm 3, mechanism 4 for wrapping pipes

filtering material and removable working drum 5, placed on the tilting arm 6 with a drive from the electric motor 7 through the gearbox 8 and the friction roller 9.

A tube wrapper assembly with a filtering material contains a cassette 10 with a wound filtering material 11, a roll 12, a device 13 for actively automatically controlling the tension of the filtering material, forming (adjoining) rollers 14, frictional rollers 15, which are pressed against two legs. the plastic tube 2, is rotated through the transmission 16 of the coil 17 with the thread 18 securing

filtering material on the pipe.

The device for active automatic monitoring of the tension of the filtering material includes a shaft 19 connected by a transmission 20 with friction rollers 15,

the circumferential speed of which is always greater than the speed of movement of the plastic pipe, and the lever 21, the fulcrum of which is located on the body of the device. The lever from the fulcrum diverges in two parallel branches 2 on both sides of the plastic pipe.

the end of each branch is made in the form of a copier 23 sliding along the filtering material, and between the copier and the fulcrum on the lever are mounted the pressure rollers 24, which press the filtering material to the shaft 19 when the lever is rotated.

At the beginning of the process, the end of the plastic perforated pipe 2 is passed through the mechanism 4, the filter material from the cassette 10 is passed under the guide roller 12, and then between the shaft 19 and the pressure rollers 24 of the lever 21, then wrapped around the pipe with a spangled bottom (the passage between the rollers 14) and secured to the end of the pipe with thread 18. The end of the wrapped pipe is attached to the removable working drum 5, after which the electric motor 7 is turned on. Next, the rewinding process with simultaneous wrapping of the pipe with filter material roizvodits automatically.

In the established process of wrapping a pipe with filtering material, the latter is in an unstressed condition before the forming rollers 14, i.e. its edges hang loosely on the sides of the pipe and are pressed by the rollers 14 from the sides and bottom (overlap), which provides a quality wrapper without

longitudinal ripples and kinks. If the tension increases, the copiers 23 that slide along the edges of the filter material rotate the lever 21 upwards and the rollers 24 press the filter material to the rotating shaft 19. As a result, the material feed rate increases and the tension decreases, i.e. The material is set automatically.

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Subject invention

A device for wrapping pipes with a filtering material containing mechanisms for moving the pipe and applying tape on it

filtering material, profile prikatochnye rollers and winding faceplate, characterized in that, in order to improve the quality of the wrapper due to automatic control of the belt tension, between the overlay mechanism on the ribbon tube and the prizatochnye rollers are mounted in contact with the tape shaft, having a drive that provides him with a circumferential speed, which obviously exceeds the speed of the tape,

and a swinging lever, on one of the arms of which the rollers are pressed against the shaft, and on the other, copiers interacting with the tape edges.

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