SU493372A1 - Mechanism for processing the bead to the machine for assembling tires pneumatic tires - Google Patents

Description

I

The invention relates to the field of manufacturing pneumatic tires and can be used in machine tools for assembling tires for pneumatic tires.

A known mechanism for processing the bead to a machine for assembling tires of pneumatic tires, containing a template, a main cylinder, an additional cylinder axially movable relative to the latter, and an axially aligned with it, pivotally mounted on the body of the additional cylinder crimp levers, interacting with the piston of the additional cylinder, and spacing levers .

In the known mechanism, the axial movement of the additional cylinder relative to the piston of the main cylinder is carried out by a special pneumatic cylinder, which complicates the design of the bead processing mechanism as a whole.

The purpose of the invention is to eliminate this drawback.

For this, the piston of the main cylinder is fitted with a central outer shank, an additional cylinder is mounted on said shank, and the spacer arms are hingely connected to the fixed bearing that is installed coaxially with the additional cylinder.

FIG. 1 shows the described mechanism in the initial position; in fig. 2 - then

same schematic before compression of the layers of the cord on the shoulders of the drum; in fig. 3 - the same after turning the layers of the cord on the wing. The bead processing mechanism is mounted on the shaft 1 of the machine for assembling tires of pneumatic tires and contains a template 2 with studs 3 for seating the bead wing and a drive 4 for reciprocating movement of the template along shaft 1, the main

an annular pneumatic cylinder 5 with a piston 6, axially movable relative to the latter and coaxial with them an additional pneumatic cylinder 7 with a piston 8 and pivotally mounted on the body of the additional cylinder

7 by means of axles 9 crimp 10 and spacer 11 levers. The piston 6 of the main cylinder is made with a central outer shank a, on which a further cylinder 7 is installed. The spacer arms 11 carry an annular spring 12 with a rubber cord 13 at their ends, and on average, their parts with the help of axes 14 and 15 and 16 zany with fixed against the corus of the pneumatic cylinder 5 support 17, the position

which is fixed by the nut 18, and with the help of the adjusting nut 19, the piston 6 of the main non-cylinder 5 is restricted. Honora 17 is installed coaxially with the cylinders 5 and 7. Release of the annular spring 20

levers is carried out by the 8

3

For the supply of Oivrnoro io: (of the spirit in the supplementary pneumatic cylinder 7 there is a pipe 21.

A pneumatic actuator 22 is used to move the housing 5 1, to the axis of the shaft 1.

The operation of the mechanism osu1 is described as follows.

After applying layers of obrezpnpen cord to the assembly drum, compressed air is supplied to the additional cylinder 7, while the piston 8, moving along the shaft axis, presses on the pressing crimp levers 10, lifting the ring spring 20 along the arc of a circle upwards. Then, using the actuator 22, the lever device is supplied to the assembly drum and compressed air is supplied to the pneumatic cylinder 5, the piston 6 of which, moving, presses on the fifth spacer arms I, pivotally connected to the additional pneumatic cylinder 7 and through the grips 16 with hydraulic support 17 When moving train 6, the latter rotates the spacing levers 11 around the axles 9 mounted on the pneumatic cylinder 7, and since the spacing levers still pivot through the rods 16 are connected to the fixed support 17, the pneumatic cylinder 7 with the axes 9 have to not move in that the same direction as the piston 6. The extreme position of the Porsche 6 is set by an adjusting nut 19 so that the piston 6 does not come in contact with the donor-pneumatic piston 7. At this movement of the elements of the mechanism, the ring spring 12 goes under layers of rubberized cord, and the spring 20 is above layers of cord.

After that, using iriver 4, the template 2 is moved with the wing mounted on the heels 3 to the drum. The template 2, moving, presses against the crimp levers 10, forcing them to rotate around the axes 9. At the same time

four

The oorezipepeni cord turns out to be clamped between the annular springs 12 and 20. Then the compressed air is vented from the pneumatic cylinders 5 and 7, while the levers 10 and 11 go down, but since the distance levers 11 are hinged to the rods 16, which fold up the circular arc around the axles 15, the levers 10 and 11 and the pistons 6 and 8 return 1, return to the initial position, and the template 2 makes the wings land. After landing, the template 2 is retracted from the drum. Further, the compressed air is supplied to the pneumatic cylinders 5 and 7, while the levers of the mechanism 10, the pulleys 16 and the cuffs 6 and 8 make movements and turn the layers of the cord onto the wing. After turning the layers of cord onto the wing, the mechanism folds and retracts from the drum. The sealing of the second and third wings is similar.

Subject invention

The mechanism for processing the bead to the machine for assembling tires of pneumatic tires,

containing a template, a main cylinder, axially nodvizhny relative to the latter and an additional cylinder coaxial with it, pivotally mounted on the body of the additional cylinder crimp levers that interact with the piston of the additional cylinder, and spacer arms that, in order to simplify the design, the piston of the main cylinder is made with a central outer shank,

an additional cylinder is mounted on the said shank, and the expansion arms are connected by means of the hg pivotally to a fixed support mounted coaxially with the additional cylinder.