SU974931A3 - Portable extrusion machine for continuous manufacture of multiple-cavity reinforced concrete products - Google Patents

Description

(54j MOBILE EXTRUSION MACHINE FOR CONTINUOUS MANUFACTURING OF MULTI-EMPTY

The invention relates to the field of construction production, in particular, to technological equipment intended for the manufacture of building products such as multi-5 hollow-core slabs. The known mobile extrusion machine for the continuous production of hollow-core concrete products, consisting of a pallet with guides, bodies, and a movable relation. relative to the pallet and equipment consisting of a hopper for forming mass, mounted on the mouthpiece body for the moldable mass, and mounted inside the body of the mouthpiece to form the product, augers for transporting and compacting the moldable mass, and starting the formers mounted on the screws, the vibration system Aidi located inside the holders, drives for rotary screws, hollow cores and vibration exciters and tubular guides running along the screws. 26 CONCRETE PRODUCTS

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to hold the reinforcement in a given plane, the machine body being made in the form of a duct composed of longitudinal vertical sides, an upper shield with a hole for the hopper and end shields that divide the internal cavity into parts, one of which is a forming chamber with a mouthpiece, and in the other there are drives for rotation of augers, hollow cores and vibration exciters, with each of the screws fixed at one end in bearings, end faces,; and the other console is located in the forming chamber, the core former, located in the mouthpiece zone, consists of separate blocks connected to each other by means of flexible couplings, the shaft of the core former and the vibration exciter are located coaxially in the cavity of the screw shaft, the ends of which are connected to the drives of their rotation, and the ends of the consoles of the tubular guide races; laid at the entrance of the mouthpiece 1J. 97 However, this extrusion machine is not universal enough. The purpose of the invention is to increase the versatility of the machine due to the possibility of its installation and removal during the work process, without compromising the integrity of the tension fittings. This goal is achieved by the use of a movable extrusion machine for the continuous manufacture of hollow-core concrete products, consisting of a pallet with body guides, movable relative to the bottom, and equipment consisting of a hopper for forming mass, mounted on the body and mounted morning pieces of the mouthpiece for form a) forming the product, augers for handling and sealing a moldable mass, void-forming agents attached to the augers, vibration exciters located inside the hollow core. drives for rotating augers, hollow cores and vibration exciters and tubular guides running along the screws to hold the reinforcement in a given plane, the machine body being made in the form of a duct composed of longitudinal, vertical sides, an upper shield with a hole for the hopper and end shields, dividing the internal cavity into parts, one of which is a shaping chamber with a mouthpiece at the outlet, and the other contains rotational drives of augers, hollow cores and vibration exciters, each of the screws at one end it is fixed in bearings of end shields, and the other is cantilevered located in the forming chamber, the core former, located in the mouthpiece zone, consists of separate blocks connected to one another by elastic couplings of the core bar and the vibration exciter coaxially in the screw shaft cavity, the ends of which are connected with the drives of their rotation, and the ends of the consoles of the tubular guides are located at the mouth of the mouthpiece, the tubular guides are made rotatable and split to place in them the valves and equipped with mechanisms for their rotation, each of which consists of a split gear, a gesture attached to the tubular guide and mounted on the face shield of the vertical body, toothed rack, rotary L-shaped double-arm lever for lifting the rail, t hyd turn L -shaped two-armed lever and a rotary handle tg and the end of which is pivotally fixed on the neck, with the L-shaped lever pivotally attached to the top with one shoulder to the rack and the other to the toothed rack, with the holes for the hinges prisoner at the ends of the L-shaped lever and the rotary handle are formed as grooves. The vibration exciter is located in the cavity of the last block of the core of the screw and consists of unbalance and a separator made in the form of a coil with flanges, the core of which covers unbalance, and the cavity formed between the separator and the block of the core is used as a reservoir for lubricant. Fig, 1 shows a machine, a general view; Fig. 2 shows an extrusion machine in plan with a partially removed upper body shield; in fig. 3 is the same, section A-A in FIG. 2; in fig. - the same, section bb in fig. 2; in fig. 5 is the same, section BB in FIG. 2; in fig. 6 - the same, the mechanism of rotation of the tubular guides; in fig. 7 shows the arrangement of the tubular guides in the working position. The movable extrusion machine 1 is mounted on the pallet 2, has beads 3 and 4, which form guides for moving the machine. Tension reinforcement 5 fixed along the ends of the pallet is attached along the pallet by standard means (conventionally not shown). The extrusion machine 1 consists of a carrying frame 6, a housing 7 comprising side shields 8, a top shield 9 and end frames 10 and 11. In the upper shield 9 a hole is made above which the receiving hopper 12 is mounted under the concrete mass. The vertical end shield 13 of the carrier frame 6 divides the inner part of the machine body into two parts, into the forming chamber and the location of the actuators 15. The molding chamber 14 has an outlet part - mouthpiece 1b formed by movable plates (vertical lateral 17 and upper horizontal 18), the displacement of which is relatively the shields 8 and 9 of the housing 7 is carried out by means of screw pairs 19.

Screws 20 pass through the forming chamber 14 and consist of a hollow shaft 21 with spiral nozzle blades 22. At the exit end of each screw there are hollow cores 23 consisting of separate blocks 2k, 25 and 26 of hollow cores that are installed in the cavity of the mouthpiece 16. The blocks of the holders are connected by means of an elastic coupling 27. The rotation of the holders is carried out from the shaft 28 passing in the cavity of the shaft 21 of the screw 20,

In the cavity of the block 2 of the hollow generator 23, an exciter 29 is located, consisting of unbalance 30 and enclosing separator 31 with flanges 32, with dt capacity, formed by the walls of separator 31 and block 2k, serves as reservoir 33 for lubricant Shaft 3k unbalance 30 passes in the shaft cavity 28 and is driven by the rotation of the electric motor 35

The rotation of the augers 20 and the vortex separator 23 is carried out by the electric motor 36 and the chain drive system 37 and 38.

For receiving from the bunker 12 the concrete mass and directing it into the mouthpiece 16 on the vertical end shields 13 of the supporting frame 6, trays 39, tubular guides kQ and the mechanism kl of their rotation are fixed. The tubular guides are made with a longitudinal slit k2 for the passage of reinforcement.

The rotation mechanism 41 consists of a split gear k3, mounted on a tubular guide and fixed on the wall of a vertical gear rack kk, which interacts with the gear 43 of the L-shaped lever 45, connecting rod 4.6, which connects these steps 45 and 47 the action of the rotation mechanism 41 of the tubular guides 49 in the bearings 50. The L-shaped levers 45 and the handle 47 have grooves 48-for the movement of the racks 44 interacting with them and the rods 46. The ha ha 46 and the gear rails 44 move in the guides 49 ; The operation of the mobile extrusion machine is carried out as follows.

By turning the handle 47, the movement, shift 46, noaopoit L-tangible levers 45 and lift | Racks 44, which deploy the cutting gears 43 and the associated

pipe guides 49 slit down with them. In this form, the extrusion machine is ready for installation on the guides 3, k of the pallet 2 with natu rebar 5.

After installing the machine and passing the reinforcement rods through the slots 51 in the vertical wall 13 and the slots 42 in the tubular guides 49, by reverse turning the knobs 47, the gear 43 of these tubular guides 49 are rotated upward with the slot 42, thereby fixing the reinforcement from sagging . Machine ready to go.

The concrete mixture is fed into the receiving bin 12 and through the hole in the upper shield 9 of the housing 7 enters the forming chamber 14. The locks-39 do not allow the concrete mix to spread, and the blades 22 of the rotating screws 20 push it into the mouthpiece 16, compact it. The concrete mass in the auger is compacted and the voids in the finished product are created by means of hollow cores 23 with built-in exciters 29. The force generated by the augers during the compaction of the concrete mix is so great that the reactive movement of the extrusion machine relative to the molded product takes place.

The rotation of the augers and holders is carried out from the electric motor 36 through the system of chain drives 37 and 38. The rotation of the vibration exciter 29 is carried out from the electric motor 35, which rotates the shaft 34 de-. balance 30. The bearings are lubricated at the junction of the screw 20 With the block 24 by oil by spraying it with a separator 31 on the unbalance 30 and shafts 28 and 3.

The size of the product can be changed by moving the vertical side plates 17 and the horizontal 18 relative to the walls of the body 7 of the machine 1, for which the bolts of the screw pair 19 can be unscrewed or screwed.

The tubular guides 40 precisely hold the reinforcement in a given plane, preventing it from tilting down or to the side.

Claims (2)

To remove the extrusion machine 1 after completing the forming process by turning the handle 47, turn the tubular guides through the 42 holes and the machine can be freely removed from the reinforcement without disturbing it, not waiting for the end of the setting, and setting the required dismantling strength to the product. Claim 1, Mobile extrusion machine for the continuous manufacture of hollow concrete products, consisting of a pallet with guides, a body, a movable relative to the pallet and equipment consisting of a hopper for forming mass, mounted on the body and mounted inside the body shaping the product, augers for transporting and compacting the moldable mass, void formers attached to the augers, vibration exciters located inside the void formers, actuators rotation of augers, hollow cores and exciters and tubular guides extending along the augers to hold the fittings beyond this plane, the machine body being made in the form of a duct composed of longitudinal vertical sides, an upper shield with a hole for the hopper and end shields, splitting the internal cavity into parts, one of which is a shaping chamber with a mouthpiece at the outlet, and the other accommodates rotational drives for augers, hollow cores and vibration exciters, with each of the screws fixed with an end n in the face shield bearings, and the other is cannonically located in the forming chamber, the transducer is empty, placed in the mouthpiece area consists of separate blocks connected one with elastic couplings, 1 halls of the rotary generator and vibration exciter are located coaxially in the screw shaft cavity, the ends of which are connected to drives them to rotate, and the ends of the consoles of the tubular guides are located at the entrance of the mouthpiece, so that, in order to increase the versatility of the machine due to -. the possibilities of its installation and removal in the course of workj do not violate the integrity of the tensioned armature, the tubular guides are rotatable and split to place the armature in them and are equipped with mechanisms for their rotation, each of which consists of a split gear fixed on the tubular guide and mounted on the face shield of the vertical movable rack, toothed rack, pivoting L-shaped double-arm lever for lifting the rack, drawing for turning the L-shaped double-double lever and pivoting arms weaving, the end of which is hinged to the t, with the L-shaped double-arm lever pivotally attached to the shield with one shoulder to the hook and the other to the rack, with the holes for the hinges of the mounting at the ends of the L-shaped lever and the rotary handle Tke made in the form of grooves. 2. The machine according to claim 1, that is, that the vibration exciter is placed in the cavity of the worm-forcing unit at the end of the auger and consists of unbalance and a separator, made in the form of a flange coil, the core of which covers unbalance, and the cavity formed between the separator and the core unit, serves as a reservoir for lubricant. Sources of information taken into account in examination 1, Patent Canada No. 958191 ,. 1kl. 25 - II, 197. X: vMul / C /  t7 f fn j // f :., .., V; u - ..3) ". ) 7 j fff  / y . h: /