SU985299A1 - Stone-cutting machine for making large blocks - Google Patents

Description

The invention relates to the mining industry and is intended for the extraction of wall materials from natural stone.

The known cutting machine is turning on a self-propelled bogie and cutting bodies with which horizontal, vertical and rear cuts are carried out to separate the block from the array ll.

The disadvantage of the device is that with fractured rocks, the blocks do not have the necessary strength and are destroyed.

The closest technical solution to the proposed one is a stone-cutting machine, including a self-propelled carriage with cutting bodies mounted on it and a frame 2,

The disadvantage of this device is that in the presence of stratification and cracks in the array, the blocks are destroyed because they do not have the necessary strength.

The purpose of the invention is to ensure the strengthening of blocks and their preservation.

The goal is achieved by the fact that the device / including a self-propelled trolley with cutting bodies installed on it and a frame is equipped with a mechanism for pressing into the reinforcement block mounted on the frame and made in the form of a hydraulic cylinder with a hollow rod on which the feed clamp is located and a spring-loaded plate with a hole under the armature connected to the hydraulic cylinder by means of guides.

FIG. 1 shows stone cutting

10 car, side view; in fig. 2 - the same, top view; in fig. 3 — mechanism for pressing into the reinforcement block.

The stone-cutting machine includes a self-propelled trolley 1 moving 5 along a ledge along a rail track 2 on which a portal frame 3 is mounted, carrying a saw head 4 with circular saws and a drive 5 for performing horizontal cuts,

20 as well as the calibration head 6 with the drive 7 and the node 8 of the vertical sawing of the array moving along the guide 9. In the upper part of the portal frame, the mechanism U is installed

25 for pressing into the reinforcement block containing a hydraulic cylinder 11 of double-sided action, on the bottom hollow stem of which a feed clamp 12 is fixed, and a fixed clamp is fixed on the body

Claims (2)

30 a guide 13, kinematically connected with a movable plate 14 with guides 15 fixed on it, along which the intermediate plate 16 with a tapered bore and springs 17 moves. On the frame there is mounted a head 18 with a bar cutting member and a drive for performing rear transverse kerf . The device contains a removable harvesting mechanism 19 with a hydraulic drive, a trolley 20 and a hydropusher 21, a device 22 for making grooves, in the upper part of the portal p N j j 3 a load trolley 23 with a grip 24 is mounted. The stone-cutting machines are equipped with a screw plug 25 at once. When moving the stone-cutting machine along the bottom, horizontal sawing with a saw head 4 and window height-adjusting blocks are performed. At the same time, the front surface of the blocks is calibrated by the head 6. Then, simultaneously with the vertical cuts being made by the disk of the node 8, vertical sawing, moving along the guide 9 bent in the upper part, is done with the aid of the mechanism 10 and pressed into the reinforcement block, which is guided 13 It is pushed through the hollow rod of the hydraulic cylinder 11 to the supply clamp 12 secured to it. By moving the upper stem of the hydraulic cylinder body 11 with the guide rigidly fixed on it, it is pressed against the array. Further, by moving the lower stem, the clamp enters plate 14, while reinforcement is rolled up and inserted into the block to a depth of about 100-150 mm. The cycle is repeated until the armature is inserted into the block to the required depth. The reinforced block, contoured by horizontal and vertical sawing, is sawed off from the massif by the bar cutting body of head 18. The cut off block is removed by the removable cleaning device 19 and installed on the trolley 20. With the help of a hydropusher 21, the trolley 20 with the block moves beyond the working area of the machine. In so doing, the block is moved in the opposite direction to the fixture 22 for producing grooves in the form of milling heads, which can move in two mutually perpendicular directions when set to the size of the groove. The finished blocks are removed from the trolley 20 by a swivel gripper 24, moved by the trolley 23 and laid down by the gripper 24 at the bottom of the slab or into the means of transport. The proposed device allows for the hardening of blocks and their preservation. Claims Stone-cutting machine for the extraction of large blocks, including a self-propelled carriage with mounted cutting bodies and a frame, characterized in that in order to ensure the strengthening of the blocks and their safety, it is equipped with a mechanism for pressing into the reinforcement block mounted on the frame and made in the form of a hydraulic cylinder with a hollow rod, on which the feed clamp is located, and a spring-loaded plate with a hole for reinforcement, connected to the hydraulic cylinder by means of a tsikh. Sources of information taken into account in the examination 1.Kalanin K.P. Development and use of saw limestones in the Moldavian SSR. Sishinev, 1959, p. 151-160. 2. Leikin M.G. Handling large blocks. Simferopol, Crimea, 1967, p. 20-21 (prototype).