RU213736U1 - Tire Sidewall Cutting Machine - Google Patents

Abstract

The utility model relates to equipment for cutting tires and can be used for recycling tires. The machine for cutting sidewalls from tires includes a frame with support legs, an electric drive, two wedge knives for longitudinal cutting. The support posts of the frame are made in the form of guides with the possibility of moving along them with the help of rollers and a hydraulic cylinder of the lifting platform with a pressure roller. The electric drive is equipped with a shaft with a gear located at its end and is placed on the upper platform of the bed. A frame with additional supports, consisting of front, side and opposite beams, is also attached to the upper platform and support posts by welding. In the guide grooves of the front beam, the frames are movable along them, and in the grooves of the opposite beam, handles with wedge knives are movably fixed by means of hinges. Wedge knives are clamped by bolts in the head with the ability to move along the surface of the head. EFFECT: improved quality of tire sidewall cutting process. 3 ill.

Description

The utility model relates to equipment for the preliminary cutting of worn or defective tires of various diameters and can be used in production lines for processing tires into crumb rubber.

A device is known for cutting a treadmill and bead rings from worn tires (patent RU No. 2044649, IPC B29V 17/00, publ. on the body with the possibility of fixing and moving it in a radial or close to it direction relative to the tire, a platform for mounting on it a circular knife for transverse cutting and circular knives for longitudinal cutting of the track with the possibility of separate execution of cutting and cutting working strokes. The device also contains wedge knives for cutting sidewalls from bead rings.

The disadvantage of the device is poor-quality cutting, as it takes a lot of time to set up and maintain the device.

The closest in technical essence is a machine for cutting the running part from tires (patent RU No. 2051034, IPC B29B 17/00, publ. a disk, a clamping device and a rotation drive with a disk, forming devices for clamping and rotating a tire with bead rings. The machine also includes a cutting device for cutting out the running part, containing two circular knives of longitudinal cutting, installed perpendicular to the axis of rotation of the tire and equipped with rotation drives by electric motors. The machine also has a circular cutter for cross cutting. To support the tire before clamping it between the disks, support rollers mounted on racks are used. There are also stand-mounted wedge knives for cutting bead rings from tires.

The disadvantage of this machine is poor-quality cutting, due to a possible failure of the settings when changing the machine to another size.

The technical task is to create a machine design that allows to improve the quality of the sidewall cutting process due to the reliable fixation of the processed tire and the rapid control of the depth of immersion of the wedge knives into the tire during cutting.

To solve the technical problem, a machine for cutting sidewalls from tires is proposed, including a frame with support legs, an electric drive, and two wedge knives for longitudinal cutting.

What is new is that the support legs of the frame are made in the form of guides with the ability to move along them using rollers and a hydraulic cylinder of the lifting platform with a pressure roller, also the electric drive is equipped with a shaft with a gear located at its end and is placed on the upper platform of the frame attached to the support legs by welding, at the same time, a frame with additional supports, consisting of front, side and opposite beams, is also attached to the upper platform and support posts of the bed by welding, moreover, in the guide grooves of the front beam, the frames are placed with the ability to move along them, and in the grooves of the opposite beam by means of hinges, two downward-curved handles with rigidly fixed side rollers and heads with wedge knives are movably fixed, the latter being clamped by bolts in the head with the possibility of moving along the surface of the head.

In FIG. 1 shows a front view of a tire sidewall cutting machine.

In FIG. 2 is a plan view of a tire sidewall cutting machine.

In FIG. 3 shows view A of a tire sidewall cutting machine.

The machine for cutting sidewalls of tires (figure 1, 2, 3) contains a frame 1 with support posts 2, made in the form of guides with the ability to move along them with the help of rollers 3 and a hydraulic cylinder (not shown in the figure) of the lifting platform 4 with a pressure roller 5. On the top platform 6, attached to the support posts 2 of the frame 1 by welding, there is an electric drive 7 with a shaft 8 and a gear 9 located at its end. Also, a frame 10 with additional supports 11, consisting of front 12, side 13 and opposite 14 beams. In the guide grooves 15 of the front beam 12 of the frame 10 are placed with the ability to move along them, and in the grooves 16 of the opposite beam 14 by means of hinges 17 two are movably fixed, bent down for the convenience of the operator, handles 18 with rigidly fixed side rollers 19 and heads 20 with wedge knives 21, and the latter are clamped by bolts 22 in the head 20 with the ability to move along the surface of the head.

The machine for cutting sidewalls of tires works as follows.

The car tire is installed on the pressure roller 5 of the lifting platform 4 so that the rotating part of the pressure roller 5 is fixed in the middle of the inner surface of the tread part of the tire, the lifting platform 4 moves up with the help of a hydraulic cylinder (not shown in Fig.) until the tire contacts the gear 9, and the clamping force must be sufficient to capture and rotate the gear 9 of the treated tire. By turning on the electric drive 7, the tire is rotated by means of the shaft 8 and gear 9. The operator brings the handles 18 together, moving them along the guide grooves 15 of the front beam 12, thereby clamping the tire on both sides with the side rollers 19, cuts the wedge knives 21 into it to the required depth and cuts the sidewalls around the circumference. If the depth of cut is insufficient for high-quality cutting, then the wedge knives 21 are reinstalled by moving along the surface of the head 20, fixed in a new position and the process starts again. After completing a full turn of the processed tire, the handles 18 with wedge knives 21 are bred, the electric drive 7 is turned off, and the rotation of the tire stops, the lifting platform 4 with the pressure roller 5 is lowered down and stopped. Split tire parts - sidewalls and the tread part are removed and transferred for further processing to the technological chain of the tire recycling line.

The design of the machine for cutting sidewalls from tires, due to the reliable fixation of the processed tire and the rapid adjustment of the depth of immersion of wedge knives into the tire during cutting, will improve the quality of the process of cutting sidewalls from tires.

Claims (1)

A machine for cutting sidewalls from tires, including a frame with support posts, an electric drive, two wedge knives for longitudinal cutting, characterized in that the support legs of the bed are made in the form of guides with the ability to move along them using rollers and a lifting platform hydraulic cylinder with a pressure roller, also the electric drive is equipped with a shaft with a gear located at its end and is located on the upper platform of the frame, attached to the support posts by welding, while the frame with additional supports, consisting of front, side and opposite beams, moreover, in the guide grooves of the front beam, the frames are movable along them, and in the grooves of the opposite beam, two downward-curved handles with rigidly fixed side rollers and heads with wedge knives are movably fixed by means of hinges, the latter being clamped by bolts in the head with the possibility of movement i on the surface of the head.

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