PL68741Y1 - Driving mechanism for strings of the equipment for cutting block of cellular concrete mass - Google Patents

Description

Pattern description

The subject of the utility model is the string drive mechanism of the device for cutting aerated concrete mass blocks, intended for precise cutting of aerated concrete blocks.

A number of structures for cutting aerated concrete are known. From the patent PL180245 there is known a device for cutting, especially rigid but not yet hardened aerated concrete blocks, comprising a cutting frame with cutting wires spaced apart and arranged parallel to each other in vertical planes and a bed grate having grate bars arranged parallel to each other. between each other and forming slots, the grating bars lying freely on the transverse supports of the bed of the cutting device and held at intervals by spacers placed on these supports, and during cutting the wires pass through the defined gaps between the grate bars, characterized by in that it has slots (12, 12a) of different gray. Patent PL180034 discloses a device for the production of building elements made of aerated concrete with precise dimensions, equipped with a mold bottom with guides and supporting rollers, characterized by the fact that it consists of a mold bottom (1), equipped with a base guide (2) and a guide pressure rollers (3), mutually parallel to each other and parallel to the upper plane of the bottom of the mold (1), cooperating with support rollers (4), guide rollers (6) and pressure rollers (7), related to the supporting structure (5) movable or stationary relative to the bottom of the form (1). On the supporting structure (5) there are cutting rotors (8), equipped with upper (10) and lower (11) strings, distant from the cutting strings of the cellular concrete mass block by the dimension equal to the thickness of the extreme elements (12), and the upper strings (10) ) and lower strings (11) of the cutting rotors (8) are attached to the discs mounted on the shaft (17).

From the patent application PL313552 a device for cutting, especially of rigid but not yet hardened aerated concrete blocks is known, having a stationary bed composed of grate beams and a cutting frame sliding in the longitudinal direction of the bed, perpendicular to it, having cutting wires extending in a vertical plane, guided through the longitudinal slots in the bed of the cutting device, characterized in that the grate beams (28) of the grate (29) lie freely on a series of hoistable grating bridges (15) that extend transversely to the railways (3) and consist essentially of pillars (18) a lifting bridge and the lifting bridge beams (17), the pillars (18) including a hinge. From the patent PL182087 there is known a device for fine cutting a block of cellular concrete mass, composed of a transverse slicer and a longitudinal slicer, mounted on the supporting structure and the base of the mass block. The transverse slicer (1), located on the supporting structure (4) and connected by guides (5) with guides (6) arranged vertically, has movable string fixing beams (9), located symmetrically on both sides of the cut mass block (10). Moving strings (9) with opposite directions of movement end with rollers associated with fixed spring (13) and fixed ones, and the movable beams are guided by guides, with the reciprocating movement of the beams causing an eccentric system. On the other hand, the upper part of the movable base (3), mounted on the guides (38), consists of a series of segments (31) connected with the holes by a metal sheet. The sheet metal is covered with a mesh (35), and the inside of the segments (31) are connected to the collector (28) with flexible fittings.

Known and used so far solutions for cutting do not ensure the precision of cutting blocks and cause frequent damage and inaccuracy of the cut blocks, and as a result large waste and shortages.

The essence of the solution according to the formula is characterized by the fact that the drive mechanism of the device for cutting a block of aerated concrete mass is equipped with a supporting structure with side guides and a movable transverse frame with four mounted and shafts, in which the shafts meshed with each other by means of gears, strings are attached, the string attached to the inner shaft is secured via a bracket, and the spring to which the string is attached is attached to the outer shaft. Pairs of meshed shafts on one side of the slicer are connected to a pair of shafts mounted on the opposite side by means of a pull rod. The shafts located on each side of the slicer cooperate with each other by means of gears mounted on the shafts by means of clamping sleeves, giving them a counter-rotating oscillating motion.

The mechanism prevents the block from deviating from the vertical during cutting, and thus prevents its damage.

Claims (2)

The design of the mechanism according to the pattern eliminates the possibility of damaging the block during its cutting, thanks to the reciprocating movement of the strings. The subject of the pattern is presented in the drawings, in which Fig. 1 shows the device in a schematic cross-section, Fig. 2 shows the method of transmitting the drive, Fig. 3 shows the method of imparting opposite movement to the adjacent strings, while Fig. 4 shows the method of fastening the strings on the shafts. . The mechanism is shown in the embodiment example. The pattern mechanism is located in the device for cutting a block of aerated concrete mass, which is equipped with a supporting structure 1 with side guides 5, a movable transverse frame 2 with four bearing shafts 3 and strings 4 fastened thereon, the strings being fastened in the following way : the string 4 is fixed on the inner shaft via a bracket 15, while a spring 16 is attached to the outer shaft, to which the string 4 is attached. The shaft drive mechanism consisting of an electric motor 6, belt transmission 7, bearing is mounted on the movable transverse frame crankshaft 8, connecting rod 9 mounted on one side on the eccentric of the crankshaft and on the other side mounted on the pin 10 embedded in the eye 11 of the shaft 3. The bearing shafts 3 cooperate with each other through a mechanism consisting of a tie 12 fastened by pins 17 to shaft arms 18 and to toothed wheels 13 mounted on the shafts indirectly The operation of the mechanism is as follows, when the transverse mobile frame 2 moves down or up, the drive from the electric motor 6 is transmitted via the belt transmission 7 and the connecting rod 9 to the internal shaft 3. Transmission of the oscillating movement from the internal shaft the external shaft takes place through a tie 12 attached to the arms of the shafts 18, mounted on the shafts 3. While the movement of the adjacent strings 4 in opposite directions is enabled by meshing gears 13 mounted on shafts 3 by means of clamping sleeves 14. Protective claims 1. The string drive mechanism of the device for cutting a block of aerated concrete mass, equipped with a support structure with side guides and a movable transverse frame with four bearing shafts, characterized in that the shafts 3 meshed with each other by means of gears 13 strings 4 are fixed, with the string 4 is fixed on the inner shaft by means of a bracket 15, while a spring 16 is attached to the outer shaft, to which the string 4 is attached. 2. Mechanism according to claim The shafts 3 are connected by a cable 12 fastened by pins 17 to the arms of the shafts 18 and to toothed wheels 13 mounted on the shafts 3 via clamping sleeves 14.