RU29004U1 - Device for removing side rings from worn tires - Google Patents

Description

Device for removing side rings from worn out

The utility model relates to equipment for processing rubber products and can be used to extract side rings from tires to be disposed of.

A device for extracting side rings from old tires according to ed. testimonial. USSR No. 139811 (publ. BI JV 12, 1961), which includes a device for clamping pokryzhi, consisting of two rings, and a mechanism for pulling on the side rings, which is a caliper reciprocating - translational movement with dagger knives mounted on it. type having a groove for engagement and extrusion of side rings.

The disadvantage of this device is the design complexity, increased energy intensity of the process due to the destruction of the layers of the tire carcass along the entire length of the side ring.

A device for extracting side rings from waste tires according to US Pat. Germany No. 2348097 (publ. 04/18/1974), consisting of a reciprocating drive, a hook for gripping the side rings and a stop to hold the shell of the side ring.

The use of this device allows you to largely avoid the drawbacks of the previous one, however, when removing the bead ring, there is the possibility of its rupture, since the ring and tire carcass material have comparable tensile strengths. To avoid damage to the side ring, it is pre-cut, which also complicates the process of removing the side ring and makes it time-consuming. Another drawback

IPC V29V17 / 02

tires.

The device consists in the fact that fragments of rubber remain on the extracted side rings, as a result of which the process of their subsequent non-processing is complicated.

Closest to the proposed device is a device for removing side rings according to the application EP 1036642 (publ. September 20, 2000), consisting of a reciprocating drive, a hook for gripping the side rings and an inclined stop in the form of an integral plate with a hole for holding the shell side ring.

The use of this device does not exclude the possibility of rupture of the side rings during removal, and, in addition, the manufacture of an inclined stop for holding the side ring in the form of an integral plate complicates the process of operation and readjustment of the device, if necessary, to different tire sizes.

The present invention solves the problem of eliminating the rupture of the side rings when removing from tires and reducing non-metallic inclusions in the composition of the extracted rings, simplifying the process of operation and readjustment of the device, if necessary, to different sizes of coatings.

To achieve the specified technical result, in the device for extracting side rings from worn pokryshheks containing a reciprocating motion, a hook for gripping the side ring and an inclined stop, the latter is made in the form of split plates with cutting edges, the hole is formed by cutting edges of split plates, the thickness of the hook for capturing the bead ring is larger than the minimum cross-sectional dimension of the bead ring, and the inclined stop is set so that the angle formed by the direction the stroke of the hook and the direction of movement of the tire in the process of removing the side ring is less than 90 °.

Distinctive features of the proposed device from the above known, closest to it, are: making an inclined stop in the form of detachable plates with cutting edges forming an opening for the passage of the hook and the side ring to be removed, setting the inclined stop in such a way that the angle between the direction of the hook travel and the direction of movement of the tire in the process of extracting the side ring is less than 90 ° and the hook for gripping the side ring is larger than the minimum cross-sectional dimension of the side ring olts tires.

Due to the presence of these signs during operation of the device, the possibility of rupture of the side rings when removed from worn tires is eliminated, the side rings are removed intact and free of rubber. In addition, the manufacture of an emphasis in the form of detachable plates simplifies the process of operation and readjustment of the device, if necessary, to different tire sizes.

The proposed device is illustrated by the drawings shown in FIG. 1-2.

In FIG. 1 shows a longitudinal section of the proposed device.

In FIG. 2-view A in FIG. 1.

A device for extracting side rings from worn tires contains a reciprocating drive 2 mounted on the frame 1, a hook 3 for gripping the side ring, and an inclined stop 4 made in the form of split plates with cutting edges. The tilting stop has an opening 5 formed by cutting edges of split plates.

The operation of the proposed device is as follows. The hook or its pre-cut side part is hung on the hook 3 and pulled to the hole 5 of the inclined stop 4, setting the hook 3 in motion with the help of the drive 2. In this case, the tire (or its

the pre-cut side part) rests against the inclined stop 4, which prevents the penetration of the material and tire parts surrounding the bead ring into the hole 5. In the bend zones of the bead ring around the hook, as well as about the edge of the stop hole, stress concentration occurs, leading to an increase in the probability of failure side ring. The thickness of the hook 3 is greater than the minimum cross-sectional dimension of the side ring of the machined coating (i.e., exceeds the size of the smaller side of the cross-section in the case of a rectangular side ring, the diameter in the case of a round section of the side ring, etc.). The inclined emphasis is set so that the angle between the direction of the working stroke of the hook, indicated in figure 1 by arrow B, and the direction of movement of the tire in the process of removing the side ring indicated in figure 1 by arrow C, is less than 90 °. The combination of such an installation of the tilting support 4 with the crushing hook 3, exceeding the minimum cross-sectional dimension of the bead ring, reduces stresses in the bend zones and the likelihood of rupture of the bead rings. The hook 3 captures the side rings of the tire being processed, piercing the side part of the tire from the inside, and the cutting edges of the hole 5 cut the side of the tire from the outside, thereby violating the integrity of the side part of the tire, reducing the tensile strength of the carcass and reducing the likelihood of rupture of the side rings. The hook 3, continuing to move, pulls the side rings from the side of the tire and pulls them through the hole 5 of the stop 4. After removing the side rings, they are removed from the hook 3 and the drive 2 moves the hook 3 to its original position. Rubber-free rings are scrapped, and the tire or its pre-cut side part is sent for recycling.

The use of the proposed device for removing side rings from worn tires allows you to remove side rings

intact and free from rubber fragments, the removal of rubber-metal waste to a landfill stops, since the extracted side rings can be scrapped, and the part of the bead cut and thrown out earlier is returned for processing. The manufacture of an inclined stop in the form of detachable plates greatly simplifies the process of operation and readjustment of the device, if necessary, to different tire sizes.

Claims (1)

A device for extracting side rings from worn tires, comprising a reciprocating drive, a hook for gripping the side ring and an inclined stop with an opening for the passage of the hook and a removable side ring, characterized in that the inclined stop is made in the form of split plates with cutting edges, an opening for the passage of the hook and the removable side ring is formed by the cutting edges of the detachable plates, the thickness of the hook for gripping the side ring is greater than the minimum cross-sectional dimension of the side ring face, and the inclined emphasis is set so that the angle formed by the direction of the stroke of the hook and the direction of movement of the tire in the process of removing the side ring is less than 90 °.