SU1444158A1 - Mincing apparatus - Google Patents

Abstract

The invention relates to the recycling of used tires in the production of crumb rubber. The goal is to increase the reliability of work. For this, the lattice is mounted on the ball with one end. The stops are made in the form of studs with adjusting nuts at the ends. Studs are placed in grooves made at the other end of the lattice. In this case, the springs are installed on each stud between the grille and the nut. The device is equipped with a sensor to turn on the drive of the device installed in the housing with the possibility of contact with the spring-loaded end of the lattice. When clogging the holes of the record, it deviates and. affects the sensor that turns off the drives. 1 з.п f-ly, 10 ill.

Description

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The invention relates to the processing of kg. worn car tires and is intended for use in the regenerative industry for grinding tires with textile and metal cord in the production of crumb rubber.

The aim of the invention is to increase the reliability of operation.

FIG. 1 shows a grinding device, general view; in fig. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. 2; in fig. 4 - id In fig. 3; in fig. 5 - section G - D in FIG. 2; in fig. 6 is a section d-d in FIG. 2; in fig. 7 shows section EE of FIG. 6: in FIG. 8 - lattice, general view; in fig. 9 is a view of FIG. eight; in fig. 10 is a view of FIG. 9.

The grinding device comprises a loading hopper 1 mounted on the suction device 2, a tire cutting mechanism 3 mounted under the suction device 2, a base 4 and a control system 5. The hopper 1 is made in the form of a welded structure of steel sheets and is equipped with a guide plate 6, which provides orientation of the tires in the retractor device 2.

The intake device 2 comprises a frame 7, rigidly connected along the perimeter with the hopper 1. In the frame 7 on the axis 8, there is an inlet roll 9 made in the form of a Celsius Drum with gripping teeth 10 of a triangular shape. The take-up roll 9 through the chain transmission 11 and the gearbox 12 is connected to the electric drive 13 of the take-up roll 9. The tire cutting mechanism 3 comprises a housing 14 rigidly connected to the frame 7 of the withdrawal device 2. A fixed-blade unit with cutting teeth 15, made in the form of a comb and fixed on it by means of bolts 16 by a transverse cutting knife 17. The housing 14 also has a cutting rotor 18 of cylindrical shape with a circumferential row of successive cutters 19 fixed by bolts 20. The cutting rotor 18 through the chain th transmission 21 and the gear 22 is coupled to electric mechanism 23 for cutting tires 3. The outlet 24 of the housing 14 of the tire cutting mechanism 3 is covered with a grill 25. One side of the grille 25 is hinged to the housing 14. The hinge connection is formed by means of lugs 26 connected by axis 26 and rigidly connected to chassis 14 and lugs 28 the grille 25. On the other opposite side of the grille 25, grooves 29 are made in which the studs are located

30, rigidly connected at one end with the housing 14. The studs 30 are provided with nuts

31, washers 32 and springs 33, placed on the studs 30 between the grid 25

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and nuts 31. In the grill 25, holes 34 are made. From the side of the grooves 29, a control element 35 is mounted on the grill 25, interacting and with the device 36 for turning off the device drives rigidly mounted on the body 14 of the tire cutting mechanism 3.

The device works as follows.

The crushed tires are fed into the hopper 1 by means of a conveyor 37. The elements of the crushed tires are removed from the machine by means of the conveyor 38. The electric drive 23 of the cutting rotor is turned on. Through the gearbox 22 and the chain drive 21, the rotation from the actuator 23 is transmitted to the cutting rotor 18, which begins to rotate at a certain speed. The covers 39 along conveyor 37 are fed into the hopper 1, where they are oriented by the guide plate 6 relative to the gripping zone of the pulling device 2. The roller 9 of the pulling device 2 grips the teeth 10 with the tire 39 and feeds it to the grinding zone of the tire cutting mechanism 3 . The cutting rotor 18 grips the tire 39 with the incisors 19 and crushes it into pieces 40, carried out the cutting process together with a block of fixed knives with cutting teeth 5 and a cutting transverse knife 17 according to the combing principle. Elements of crushed tires 39, the dimensions of which are smaller than the openings 34 of the grill 25, fall through the openings 34 and fall onto the conveyor 37.

A part of the elements of comminuted tires 39, the dimensions of which are larger than the apertures 34 of the grille 25, is gripped by the cutting rotor 18 and fed for re-crushing, while a part of the elements of the combustible covers 39 remains in the area of the outlet 24 of the tire cutting mechanism 3. During operation, the openings 34 of the grille 25 are periodically clogged with elements of ground tires 39 (pieces of wire, side rings, rubber, etc.), which leads to overflow of the outlet 24 of the mechanism 3 for grinding tires 39 and, as a result, to a sharp increase in resistance rotating the cutting rotor 18 with high kinetic energy. This energy of the erasable rotor 18 is aimed at overcoming the increasing resistance from the cutting rotor 18 through its cutting elements 19, the elements of ground tires 39 to the body 14 and the grid 25 of the mechanism 3 For grinding tires.

When the forces acting from the cutting rotor 18 on the slider 25 reach a value exceeding the compressive forces of the springs 33, the grid 25 begins to move

(as if to open up), since one side of the grille 25 is pivotally connected to the body 14, and the other side is spring-loaded. When the grille 25 is moved in the area of the outlet opening 24 of the tire cutting mechanism 3, an additional volume (space) is created, which is filled with a part of the elements of the ground tires 39, resulting in a decrease in the pressure force from the cutting rotor 18 through the elements of the ground tires 39 to the body 14 and the grid 25 and, respectively, from the side of the housing 14 and the grid 25 to the cutting elements 19 of the cutting rotor 18. At the same time, when moving the grid 25, the control element 35 interacting with the sensor moves ohm 36. Sensor 36 is activated, as a result, actuators 13 and 23 are turned off and, as a result, the take-up roller 9 and the cutting rotor 18, i.e., no longer rotate. the process of feeding and grinding tires is stopped and the breakage of the cutters 19 or the grill 25 is prevented.

In order to restore the working condition of the machine, it is necessary to clean the elements of the crushed tires 39 from the holes 34 of the grill 25 and the outlet 24 of the housing 14 of the tire cutting mechanism 3. To do this, it is necessary to unscrew the nuts 31, remove the washers and springs 33 from the studs 30, and then slightly open (fold back) the grill 25 and clean it. Then turn on. electric drive 13 of the return roll in the opposite direction. Through gear 12 and flail

The gear unit 11 is rotated from the electric drive 13 by the take-up roll 9, which begins to rotate; remove tires 39 from the capture area of the cutting rotor. Thereafter, the actuator 13 is turned off. The rotation of the tire cutting mechanism 3 is turned on in the opposite direction, the rotor 18 removes the tire pieces from the grinding zone. Then the rotor drive 18 is disconnected. After the described operations have been performed, the working state of the machine is restored.

Claims (2)

1. A grinding device containing a loading hopper mounted in the housing, a gripping mechanism, a cutting assembly in the form of a driving cutting rotor and fixed blades and a spring-loaded grating mounted hingedly at the outlet orifice, characterized in that, in order to improve the reliability of operation, the grating mounted on a hinge at one end, the stops are made in the form of studs with adjusting nuts at the ends, and the studs are placed in grooves made on the other end of the lattice, while the springs are mounted on each stud dy grating and nut. 2. The device according to claim 1, is distinguished by the fact that it is equipped with a sensor for turning off device drives installed in the housing with the possibility of contact with the spring-loaded end of the lattice. 9g.1 // 8u Phie. 29 W 15 eight Phie. Yr U 9 5 E- V / 511 Faye. 6 HER IS i9 Phie. 34 34 / f - widge 54 34 L J5 rig.9 29 29 Bufffi five (fJus. JO