RU2620804C1 - Processing line for the composite reinforcement manufacturing - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: processing line for the composite reinforcement manufacturing contains sequentially positioned and interconnected the roving filament delivery module, heat chamber with the heated air superchargers, bath with binder, filament tension elements and the binder wring out from the filament, drive winding device, the furnace with cavity to move the reinforcement through it, the filament moving drive through the line, the reinforcement cooling module and the receiver of the finished reinforcement. The receiver contains the cutting disc for reinforcement facing. The line contains the combs to separate filaments, the filaments tension device, the comb to separate filaments after impregnation, the formation guide for the reinforcement mandrel from the filaments, the drive tension and filament twisting device to manufacture the winding harnesses into the mandrel and hooks formation at the reinforcement, drive winding device, including the flywheel, guides and drive tension device. The furnace is made sectional with partitions and there is the heater in each section. The receiver of the ready reinforcement includes the reinforcement limit stop, electrically connected with the reinforcement moving drive and drive of the cutting disc for facing the reinforcement. The receiver of the ready reinforcement includes the reception desk, located behind the cutting disc, and the drive drum to wind the reinforcement into the coil. The heat chamber superchargers are located under the filaments. The harness winding device to the reinforcement mandrel includes the drive flywheel, the filament guides and the tension device. The flywheel is made removable with one or more coils of winding harness.

EFFECT: increase of the reinforcement strength and its bearing capacity.

4 cl, 17 dwg

Description

This line refers to the production of reinforcement for concrete reinforcement. The line is intended for use in the field of production of building materials, in particular composite reinforcement made of fibers impregnated with cured resin.

The lines for the production of composite reinforcement known from advertising materials are characterized by a combination of a multitude of structural modules that carry out the technological chain of actions performed on roving threads and a binder (resin), of which the reinforcing bar is made, while during the production of reinforcement its forced drying is provided, during which the process of binder polymerization and curing of the reinforcement, as well as forced cooling at the exit from the line.

For the manufacture of such reinforcement, for example, an automatic production line for the production of continuous composite reinforcement is known, which allows the production of this product in parallel with two or more streams using a tubular polymerization furnace with reflectors inside. In the manufacturing process, the reinforcing bar passes along the production line through the stretcher, made in the form of tapes, grasping the bar from the sides and providing it with forward movement. A stretcher can work simultaneously with several threads (Production of composite reinforcement. Production of composite reinforcement. Ideiibiznesa.org/proizvodstvo-kompozitnay-aimatury, Yandex, 2015).

From foreign patent documentation, technological lines and devices for manufacturing composite reinforcement are known, which contain at least one module for supplying roving threads, a module for impregnating threads, a module for forming a core of reinforcing bars from threads, a module for winding onto the core of bundles and a drying module for the resulting reinforcement (CN 204826415 U, 2015-12-02. CN 104960211 A, 2015-10-07. CN 104842471 A, 2015-08-19. US 2015233119 A, 2015-08-20. US 2015 204075 A1, 2015-07-23. KR 101498998 B1, 2015-03-09. AT 514390 A1, 2014-12-15. WO 2014196432 A1, 2014-12-11. US 2014335217 A1, 2014-11-13. SK 50312014 U1, 2014-11-04. CN 103883076 A, 2014-06-25).

From the patent documentation, technological lines and devices for manufacturing composite reinforcement are known, each of which contains a roving filament feed module, a thread tension device, a heat chamber with heated air blowers located under the threads, a bath with a binder, thread tension elements and binder spinning from threads, the drive mechanism for winding on the core of the bundles and the formation of hooks on the reinforcement, the drive winding device, a furnace with a cavity for alternating connecting reinforcement through it, a drive for moving threads and reinforcement through the line and the cooling module of the reinforcement (RU 2210501 C1, 08/20/2003. RU 2287646 C1, 11/20/2006. RU 2384408 C2, 03/20/2010. RU 2389853 C1, 05/20/2010. RU 2468161 C1, 11/27/2012. RU 2522641 C1, 07/20/2014. RU 2547036 C2, 04/10/2015. RU 2534130 C2, 11/27/2014. RU 2531711 C2, 10/27/2014. RU 76659 U1, 09/27/2008. RU 80176 U1 , 01/27/2009. RU 82247 U1, 04/20/2009. RU 90470 U1, 01/10/2010. RU 96145 U1, 07/20/2010. RU 107803 U1, 08.27.2011. RU 129538 U1, 06/27/2013. RU 129962 U1, 07/10/2013. RU 130543 U1, 07.27.2013. RU 132106 U1, 09/10/2013. RU 135677 U1, 12.20.2013).

Of the known lines, the closest to the line presented in this description is a production line for the manufacture of composite reinforcement, comprising sequentially installed creel with roving spools, leveling device, annealing chamber, impregnating bath with a tension device, squeezing device, molding unit, spiral device windings, a polymerization chamber, a pulling device, a winder of a winding bundle, a cutting and reeling unit, the line being equipped with a water cooling unit, is set between the polymerization chamber and the pulling device, while the length of the polymerization chamber is increased, and the molding unit consists of a molding disk made with through holes evenly spaced along the periphery and connected by brackets to the molding cylindrical tube, at the end of which a replaceable hollow tip is installed (RU 90470 U1 10.01.2010-prototype).

Common features of the prototype and the line presented in this description is that each of them essentially contains sequentially located and connected to each other the module for feeding roving threads, a heat chamber with superchargers of heated air, a bath with a binder, elements for tensioning the threads and squeezing the binder from the threads , drive winding device, furnace with a cavity for moving fittings through it, pairs of drive rollers for moving threads and fittings through the line, valve cooling module, receiver of finished fittings, including ayuschy cutting disc for trimming fixture.

As practice shows, the quality of reinforcement is characterized by its bearing capacity and resistance to bending, tension, torsion and compression, affecting the strength of reinforced concrete structures. It was noted that the most durable reinforcement is such reinforcement in which its threads are maximally parallel to each other, and the turns of the strand wound around the core of the reinforcement are most firmly connected to the core of the reinforcement. At the same time, the process of polymerization of the binder in the furnace line has a significant impact on the strength of the connection of the turns of the tow. The main requirement for this process is to preserve the properties of flexibility and elasticity to the cured binder, in which the turns of the tow are most firmly connected to the core of the reinforcement.

Significant disadvantages of the reinforcement manufactured by the known lines is that the lines do not provide a clear geometry of the hooks of the reinforcement at the outlet of the furnace. They turn out to be excessively fused with the core of the reinforcement; places of transition from the core to the hook turn out to be filled with the cured binder. In the interaction of this form of reinforcement hooks with concrete, these transition points break and in their place milled binder particles and micro-voids in concrete are formed, which are especially dangerous under bending loads on a concrete reinforced structure. During long-term operation of concrete structures working in bending, as a result of alternating loads on structures, these voids in concrete provide the possibility of micro displacements of the reinforcing bar relative to concrete in two opposite directions. In such cases, the hooks work like saw teeth, first sawing in microchannels separate from each other in concrete, which during continuous operation of the concrete structure are connected into one channel.In this situation, the reinforcing bar is free of concrete in its longitudinal direction. In this case, the concrete and reinforcement work separately in bending, which creates the danger of a complete separation of the reinforcement bar from the concrete mass of the structure. In this regard, the bearing capacity of the reinforcement does not meet the safety requirements of reinforced concrete structures due to these shortcomings. The reinforcement manufactured in accordance with the prototype does not fully provide strength due to the arbitrary choice of the ratio of the density of the core of the reinforcement and the density of the wraps wound around it, due to the arbitrary location of the threads in the core of the reinforcement, deviations in their parallelism, an uncontrolled polymerization process, resulting in cracking, burnout and brittleness of the binder. As a result, the strength of the reinforcement and its bearing capacity to absorb loads in the concrete structure are significantly underestimated.

The technical result of the production line is to increase the strength of the reinforcement and its bearing capacity.

The technical result was obtained by a technological line for the manufacture of composite reinforcement comprising a roving filing module sequentially located and connected to each other, a heat chamber with heated air blowers, a bath with a binder, elements for tensioning the threads and squeezing the binder from the threads, a drive winding device, a furnace with a cavity for moving fittings through it, a drive for moving threads and fittings through the line, a valve for cooling the fittings and a receiver for the finished fittings, including a cutting wheel for trimming a mats, and the line contains combs for separating the threads, a device for tensioning the threads, a comb for separating the threads after impregnation, a guide for forming reinforcement core from the threads, a drive mechanism for tensioning and twisting the threads for the manufacture of wiring harnesses on the core and forming hooks on the reinforcement, a drive winding device including a flywheel, guides and a drive tensioning mechanism, while the furnace is made sectional with partitions and in each section there is a heater, a receiver of finished fittings ry comprising travel stop valves, electrically connected to the actuator and move the valve actuator cutting disc for facing reinforcement, wherein the receiver comprises a reinforcement positioned ready for the cutting wheel deadplate, and a drive drum for winding armatures in the bay, and blowers heat chamber arranged at the filaments. The device for winding the tow on the core of the valve includes a drive flywheel, thread guides and a tension mechanism, the flywheel being removable with one or more coils of the winding tow. Heated air blowers, a heat chamber, heaters of fittings in the furnace, as well as drives of a winding device, a tensioning mechanism, rollers for moving the fittings, a limiter for moving the fittings, a cutting wheel and a drive drum are electrically connected to each other through a line control panel. The modules for filing the threads and the receiver of the finished fittings are located in a plane different from the plane of the remaining modules of the line.

In FIG. 1 shows a production line.

In FIG. 2 is a structural diagram of a production line.

In FIG. 3 - module 10 filing roving threads.

In FIG. 4 - module 15 drying roving threads.

In FIG. 5 - modules 20 and 24 impregnation of roving threads and core manufacturing, respectively.

In FIG. 6 - module 30 filing threads for the manufacture of strands of reinforcement.

In FIG. 7 - module 35 winding the tow on the core.

In FIG. 8 - module 40 impregnation of turns of a tourniquet and polymerization of reinforcement.

In FIG. 9 - module 45 moving reinforcement.

In FIG. 10 - module 50 cooling valves.

In FIG. 11 - receiving module 55 line.

In FIG. 12 - drum for winding reinforcement in the bay.

In FIG. 13 - interaction node of the core thread distributor

fittings with a module for winding bundles on the core.

In FIG. 14 - the flywheel of the module for winding the tow on the core with one

harness coil.

In FIG. 15-16 options for the flywheel of the core winding module with two or more tow coils.

In FIG. 17 - the relative position of the flywheel, the core and the harnesses in the process of winding them on the core.

The technological line contains bobbins 1 (Fig. 1) with roving threads 2 that are installed on the rack 3 of the line with the possibility of free unwinding of threads from bobbins, with each thread 2 located separately from other threads between the elements of comb 4, which is located along the bobbins movement of threads. Behind comb 4 there is a device 5 with guide rollers 6-9 for pre-tensioning the threads and maintaining them in working positions of movement along the line. Elements 1-9 are part of the module 10 filament, shown conventionally in dashed lines. (Hereinafter, each module of the processing line is indicated by a dashed rectangle). Module 10 contains a frame on which its elements are mounted, including the frame of the rack 3.

Due to the bulkiness of module 10, it can be located on the lower tier of the line — below the other modules of the line and below the floor of the workshop on which other modules are located. In the lower tier, the arrangement of the module 10 is supplemented by guides through which roving threads 2 or bundles of roving threads pass. (The bottom location of module 10 is not shown in the drawings).

The line contains air blowers 11 mounted on the frame or on the floor of the workshop behind the module 10 along the threads from left to right in FIG. 1. Blowers 11 are located under the threads 2 and under the heat chamber 12, in which the threads 2 are located and in which they are heated by blowing from the bottom up by a directed stream of hot air heated in the range of 60-90 ° C. Blowing is carried out in the process of moving the threads along the guides 13 and along the guides-heating elements 14. It is possible to dry the thread by pulling it through a hollow heated tube. The drying operation of the threads is carried out by the drying module 15, associated with the module 10 of the filament. The connection of modules 10 and 15 and below of the indicated models is carried out through the frames of these models, as well as through the threads, the core of the reinforcement formed from the threads, and the finished reinforcement. The threads and manufactured fittings moving along the line are technological and control elements for connecting the modules to each other.

Behind the module 15 of the line is the next module, which includes a bath 16 with a binder 17 (resin), guide rods 18, ensuring complete immersion of the threads in the binder, as well as a comb 19 with guides for separating the threads after impregnation. Elements 16-19 are interconnected and are part of the impregnation module 20. With the module 20, the means for squeezing the resin from the threads 2 are paired, having elements 21 of the mechanism for tensioning the threads along a zigzag path, a plate 22 pressed against the lower squeezing rod 23, a (right) comb 19, a right guide 24, which forms the core of the reinforcement from the threads 2. These operations are carried out in the module 25 for manufacturing the core 26 of the reinforcement. In the module 25 carry out these operations of spinning, tension and connection of threads. For the manufacture of rovings from other threads 27 of the roving of the winding ropes 28, the line contains a mechanism 29 for tensioning and twisting the strands 27. These operations are performed in the module 30 for manufacturing the ropes 28, which are designed to form reinforcement hooks 31 located on the core blank 26. Core winding 26 carry out a winding device including a flywheel 32, guides 33, a tension mechanism 34 and other elements. These operations are performed and controlled by the winding module 35 of one or more bundles 28 on the core 26 of the uncured reinforcement 36.

Behind module 35, there is a furnace 37 with a cavity in it for moving uncured reinforcement 36 through it, heating it with heaters 38 and 39 to a temperature of 150-400 ° C, and for polymerizing the binder when the uncured reinforcement 36 passes through the furnace at a speed of 1.0-10 , 0 m / min. When moving the reinforcement through the furnace, coils wound on the reinforcement made of bundles 28 are impregnated with a binder available on the surface of the core 26. The operations of impregnating the bundle 28 with a binder and the drying operation of the uncured reinforcement 36 are performed in the impregnation and polymerization module 40 of the finished reinforcement 41. Behind the module 40 are located pairs of drive rollers 42 and 43 from the drive 44, pulling all the threads of the reinforcement, as well as dragging the uncured reinforcement 36 and the cured reinforcement 41 after it passes through the furnace 37, as well as through e above process line modules. The indicated movement is carried out by the movement module. Behind module 40, a valve cooling module 45 is located, comprising a housing 46, a water or air pump 47 having a temperature of 16-45 ° C. lower than the temperature of the hot valve, a water tank 48 whose temperature is lower than the temperature of the cooling air, and a water tank 49, the temperature of which is lower than the temperature of the water in the tank 48. The valve cooling operations are carried out in the valve cooling module 45 during continuous movement of the valve by the movement module 50.

Behind the module 50, a receiver 51 of the finished valve 41 is located. The receiver is a table on which there is a limiter 52 for moving the valve, electrically connected to the drive 44 for moving the valve and the drive of the cutting wheel 53 for trimming the valve. In the case of winding the finished reinforcement 41 into the bay, a drive drum 54 having means for connecting the end of the reinforcement 41 to it is used for winding the reinforcement. The reinforcement is cut (cut into segments) or the reinforcement is wound into the bay by the receiving module 55. Due to the bulkiness of the module 55, option that it can be located on the lower tier of the production line - below the other modules of the line and below the floor of the workshop on which the remaining modules of the line are located.

Modules 10 and 55 of the line can also be located above the floor of the workshop. In any arrangement of modules 10 and 55 - above the floor or below the floor, they are supplemented with appropriate guides for the passage of roving threads and finished fittings. In any of these line designs, modules 10 and 55, located below or above the floor of the workshop, are brought closer to each other and no place on the floor of the workshop is required for their location.

Each said line module is connected to the line modules by an electric cable 56 of the line control system, which is connected to the control panel 57 containing the control cabinet 58 with the control equipment 59 located therein. The control and power components of the modules are part of the process line control module 60.

Each line module preferably has its own frame connected to the frames of adjacent modules, or a common line frame consisting of separate interconnected sections of the frame on which the modules are mounted (module frames are conventionally shown by vertical lines without positions). Modular layout of the line in the form in which it is represented in the images is preferred. Modules 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, and 60 are structurally interconnected by their frames, and they are also interconnected functionally in a single technological line, as shown in the structural scheme (Fig. 2).

In the case of a line made of modules, each of which has its own frame, screw supports are installed on the racks of the module frames between the floor of the workshop and the end of the rack to accurately install the modules in a given design position, taking into account the position of the roving rods, core of reinforcement and finished reinforcement moving along the line. In this case, the individual frames of the modules, in the case of a modular design of the line, can be located offset from each other in the horizontal plane, depending on the mounting capabilities and the characteristics of the area on which the line is located.

It is essential that such a bundle winding module 35 on the core of the reinforcement (Fig. 2) is introduced into the line, which comprises a flywheel 32, guides 33 and a tensioning mechanism 34, the flywheel 32 being removable and, in one embodiment, one coil 1 of a winding bundle is mounted on it 28 (FIG. 13), and other removable flywheels may have several coils 1 (FIGS. 14-16), all flywheels being interchangeable. The flywheel is mounted on a hub (not shown), which is connected to the flywheel rotation drive, the flywheel being located behind the thread distributor along the direction of thread 2. On the flywheel 32, a coil 1 or several coils are rotatably mounted. During operation of the module 35, each winding bundle 28 is wound with an indentation force onto the surface of the core 26 of the valve (Fig. 17) and forms a groove in the core. The bundle coil located in the groove adheres firmly to the core at a given height of the bundle coil above the core surface, which significantly increases the adhesion strength of the bundle turns with the core and the bearing capacity of the reinforcement. It is essential that the reinforcing rods 28 are made on a separate module 35 (Fig. 1) of the production line parallel to the line in the zone between the modules 25 and 35. It is also significant that the furnace 37 is made of many interconnected sections separated by walls 61 (Fig. .8) with holes 62 in the walls 61 for passage of reinforcement through them. It is also essential that the heaters 38 and 39 are located in sections of the furnace, having different power with the possibility of separately adjusting the temperature in each section, separately from other sections, by changing the heating temperature of each heater.

The production line operates as follows. The roving threads 2, located on the rack 3, are wound from bobbin reels 1 (Figs. 1, 3), they are separated by comb 4 to the position of their impregnation with a binder, and each thread in the bundle of threads is moved from the location of the bobbins to the place of drying and heating of the threads. In the process of moving the threads they are supported from sagging in the state of tension (within the allowable tensile strength) by the device 5 of the preliminary tension of the threads. Winding, moving and tensioning the strands of the beam is carried out from the inertial movement of the bundle of threads. The specified device 5 contains guides in the form of rods 6-9 (Fig. 3), enveloped by threads 2 in order to give the threads a certain trajectory of movement and pre-tension. These operations are performed by the filament supply module 10. Module 10 is part of a production line composed of individual modules.

Further, when threads 2 enter the thread drying module (Fig. 4), each thread is dried and heated by blowing it from the bottom up by a directed stream of hot air heated within 60-90 ° C and under pressure from the heated air blowers 11 installed under heat chamber 12. In this case, each thread is moved in the module for drying the threads away from the module 10.

The filaments are moved through the combs 13 and the guide rails 14. In another embodiment, each filament is dried and heated by contact by dragging it through a hollow heated tube of the heater.

The drying operations of the threads are carried out by the drying module 15, structurally and functionally associated with the thread feeding module. This communication is carried out by means of interconnected frames of modules 10 and 15.

During the operation of the line, all its modules are also interconnected by roving threads, which turn into finished reinforcement, which performs the functions of a traction element in the line in the drive for moving threads along the line, since the rigid rod of the finished reinforcement is connected to the pulling pairs of rollers 42 and 43 with their rotation drive 44. After the operation of drying the threads, they are impregnated in the bath 16 with a binder 17 (Fig. 5), for which each roving thread 2 is moved through the bath 16, in which the thread is impregnated with a binder. Impregnation is carried out by dipping each thread in a bath with a binder until it is completely immersed in a binder 17 using guide rods 18, ensuring complete immersion of the threads in the binder. Before dipping the threads into the bath, they are separated - each individual thread is pulled through comb 19 (Fig. 5) with guides. After impregnation of the threads, it is moved together with other threads away from the bath 16. The operation of impregnating the threads is carried out by the impregnation module 20. When performing the described operations, each individual roving thread does not come into contact with another thread. Such a condition for processing each thread is selected based on the requirements of quality assurance of monitoring the condition of each thread individually in order to improve the quality and strength of the finished reinforcement.

With the module 20 (Fig. 5), the module for spinning the threads 2 from the binder is paired, spinning is carried out after impregnation and exit of the bath 16 of each thread, which is first passed through the elements 21 of the thread tension mechanism along a zigzag path. Next, excess binder is squeezed from each thread by pressing the impregnated thread with the plate 22 to the lower squeeze rod 23 and the pressure of the pressure plate is adjusted by the pressure mechanism located in the bar 23. This force controls the binder squeezing from the thread and the binder content in the thread, and the binder content is adjusted in the thread within: binder 5-25%, thread 95-75%. An impregnated yarn with a specified binder content in it is imparted hardness in the longitudinal direction, for which, after pressing the binder from it, the yarn is pulled by drive (rotation-driven) tension elements 21 and 22 to the state of the exact binder content in it. Next, the filament 2 is passed through the second comb 19 (Fig. 7) of another module and the guide 24 with holes. At the same time, it is essential that after the strands 2 are pressed in the module 25, the strands 2 are pulled and placed in a position parallel to other strands (Fig. 5). After establishing the parallelism of the threads they are passed through the guide 24 (Fig. 5), which forms from the threads 2 a blank of the core 26 of the reinforcement (Fig. 7). In modules 25 and 35, the binder is pressed from the threads, their tension and the connection of the threads in the core 26 of the reinforcement. In the process of forming the core blank 26, the core threads 2 are joined by their sides to a bundle of threads, which is the core core blank. Simultaneously with the execution of the above operations associated with the manufacture of the mentioned core 26 of the reinforcement, in the module 30 (Figs. 1, 6), from other roving threads 27, winding ropes 28 of the reinforcement, simultaneously several ropes 28, are made using the device described below. Each bundle 28 is made by twisting the strands 27 around the longitudinal axis of the bundle and simultaneously tensioning the strands during twisting. Twisting and tensioning of the threads 27 is carried out by the mechanism 29 of tensioning and twisting of the threads. By increasing the twisting and tensioning forces, the harness is imparted a harness before being wound on the core that is greater in comparison with the hardness of the core 26 of the reinforcement. These operations are performed in the module 30 for the manufacture of bundles 28. The bundles 28 are made dry, for which each thread 27 is fed into the module 30 in a dry state.

With one dry tourniquet 28 or several dry tourniquets, for example three tourniquets, simultaneously wrap the core blank 26 from three sides along the tourniquet perimeter of the tourniquet (Figs. 1, 7) and tourniquets 28 form a round shape of reinforcement core from it, squeezing the filaments of the core from the sides of the core to its center line, while from the bundles 28, hooks 31 of the reinforcement are formed located on the core blank 26. When forming a round shape of the core, the bundles are placed evenly around the perimeter of the core and wound onto the core with the same thrust effort. The core winding 26 is carried out by a winding device, including a flywheel 32, guides 33, a tension mechanism 34 and other elements. When each bundle 28 is wound on a core, a bundle is pressed into it until a distinct groove is formed in the core. In this case, the depth of the groove is formed by the bundle, which should be less than the height of the hook 31 from the surface of the core 26. The depth of pressing the bundle into the core is controlled by changing the tension of each bundle, changing the angle of winding of the bundle 28 on the core, equal to the angle of the bundle 28 to the longitudinal axis of the core in the process winding the tow, by changing the angle of coverage of the core with the tow, as well as by changing the speed of winding the tows on the core. These operations are performed and monitored by the harness winding module 35.

The obtained uncured reinforcement 36 (aramtura blank) with hooks 31 on it is moved into the cavity of the furnace 37 (Fig. 8) and, during its movement, the strands of the tow (hooks) on the core are kept until the coils are completely impregnated with binder from contact with the core. Moreover, in the process of moving the reinforcement, the turns of the bundles are impregnated and simultaneously heated in the furnace 37, which is made of separate sequentially arranged sections separated by partitions with holes in them for passage of the reinforcement. A heater 38 or a heater 39 is installed in each section separately from the others. The air in the furnace is heated by heaters 38 and 39 to a temperature of 150-400 ° C, and the valves in the furnace are heated gradually and stepwise so that in each subsequent section of the furnace the air temperature is increased or lower in comparison with the air temperature in the previous or subsequent section of the furnace. This is done in order to avoid boiling and burnout of the binder and ensuring a given polymerization mode, which provides increased strength of the binder and reinforcement. The movement of the reinforcement in the furnace is carried out until the binder is completely polymerized when the reinforcement rod passes through the furnace at a speed of 1.0-10.0 m / min. By means of control of impregnation of the bundle 28 on the core, the degree of impregnation of the bundle with a binder from contact with the core is controlled, and the speed of passage of the reinforcing rod through the sections of the furnace 37 is controlled. The operations of impregnating the bundle with a binder and the drying of the fittings are performed in the module 40 for drying the fittings, impregnating the turns of the bundles 28 and polymerization .

From the module 40, the rod of the finished reinforcement 41 (Fig. 9) is moved by drive pairs of rollers 42 and 43 from the drive 44, which pulls all the threads of the reinforcement, as well as pulls the uncured reinforcement 36 and the cured reinforcement 41 after the furnace through all the above modules of the production line. To move the roving threads and the core of the reinforcement, as well as the finished reinforcement (after its manufacture), before the line is put into operation, roving threads 2 are inserted into its respective modules to form the core of the reinforcement, as well as threads 27 to form the reinforcing ropes. After threading the threads, they are passed through pairs of rollers 42 and 43 pressed against each other and, thus, a bundle of threads is connected to the drive 44. After that, the drive is put into operation. When the drive 44 is turned on, line modules are activated. The movement of the valve 41 is carried out by the module 45 of the movement of the valve. By the indicated movement of the cured valve 41, it is supplied to the valve cooling module (Fig. 10), in which the valve is cooled from the pump 47 supplied from the housing 46 with warm water or warm air. The temperature of these cooling media is controlled within a temperature that is 16-45 ° C below the temperature of the hot fittings leaving the furnace. Then the fittings are cooled in the tank 48 with water, the temperature of which is set between the temperature of the indicated cooling media and the temperature of the water in the tank 49. The temperature of the water in the tank 49 is set below the temperature of the water in the tank 48. The cooling operation of the valves is carried out in the valve cooling module 50.

After cooling, the reinforcement 41 is moved to the table of the receiver 51 (Fig. 11). The reinforcement for trimming (cutting to size) is sent to the limiter 52, which disables the drive 44 and includes a cutting wheel 53. The reinforcement for winding into the bay is connected to the driving drum 54 (Fig. 12), its drive is turned on and the reinforcement is wound on the drum. In the case of winding the reinforcement on the drum, the movement of reinforcement and roving threads through the line modules is carried out from the drum rotation drive, while the drive 44 of the pulling rollers is switched off automatically.

The line provides for instant trimming of the reinforcement without shutting off the valve 44 for moving the reinforcement at the time of trimming, since the flexibility and length of the reinforcement allows such instant trimming without stopping the manufacturing process of the reinforcement and its movement along the line. The trimming of the reinforcement or the winding of the reinforcement in the bay on the drum is carried out by the receiving module 55.

Since the line modules are connected by an electric cable 56 (Fig. 1,2) of the control system with the remote control 57 (Fig. 1) and control equipment 59, which is part of the process line control module 60, all the above operations are performed according to a given program in automatic mode .

It is also significant that each winding bundle 28 (Fig. 17) is pressed into the core 26 of the reinforcement and forms a groove in the core. The bundle coil located in the groove engages with the core at a certain specified height for the location of the part of the bundle coil in the groove and most of it above the core surface. This adjustable process of laying the bundle in the groove significantly increases the adhesion strength of the turns of the bundle with the core. The process also provides a clear geometry of each turn of the tourniquet on the surface of the reinforcement, without flattening the turns, which increases the bearing capacity of the reinforcement. An exception to the flattening of the turns is due to the high density and hardness of the bundle 28 wound on the core of the reinforcement.

It is significant that the reinforcing rods 28 are manufactured on a separate module 35 of the production line, parallel to the line in the area between the impregnation module and the furnace. It is also significant that when the reinforcement passes through the furnace sections, the temperature in the sections is automatically wave-shaped, depending on the temperature of the connecting reinforcement to improve the polymerization process.

The process of production of reinforcing bars with this technological line provides an increase in the strength of the reinforcement and its bearing capacity by choosing the optimal ratio of the density of the core of the reinforcement and the density of strands wound around it, by increasing the parallelism of threads in the core of the reinforcement, improving the polymerization process, eliminating cracking of the binder and maintaining its elasticity, and increasing strength the connection of each hook with the core at the highest height of the hook above the surface of the core, which ultimately allows t significantly improve the quality of the reinforcement - its tensile strength, the strength of the connection with concrete and bearing capacity, to accept alternating bending loads on concrete structures.

Claims (4)

1. Technological line for the manufacture of composite reinforcement, comprising sequentially located and interconnected module for feeding roving threads, a heat chamber with heated air blowers, a bath with a binder, elements for tensioning the threads and pressing the binder from the threads, a drive winding device, a furnace with a cavity for moving through reinforcement, a drive for moving threads and reinforcement through the line, the cooling module of the reinforcement and the receiver of the finished reinforcement, including a cutting wheel for trimming the reinforcement, characterized in that it contains combs for separating the threads, a device for tensioning the threads, a comb for separating the threads after impregnation, a guide for forming reinforcing core from the threads, a drive mechanism for twisting and twisting the threads for manufacturing bundles of windings on the core and forming hooks on the reinforcement, a drive winding device including a flywheel , guides and a drive tensioning mechanism, while the furnace is made sectional with partitions and in each section there is a heater, a receiver of finished fittings, including anichitel moving armature electrically connected to the actuator and move the valve actuator cutting disc for facing reinforcement, wherein the receiver comprises a reinforcement positioned ready for the cutting wheel deadplate, and a drive drum for winding armatures in the bay, and blowers heat chamber arranged at the filaments. 2. The production line according to claim 1, characterized in that the device for winding the bundle on the core of the valve includes a drive flywheel, thread guides and a tension mechanism, wherein the flywheel is removable with one or more coils of a winding bundle. 3. The production line according to claim 1, characterized in that the heated air blowers, a heat chamber, heaters of the fittings in the furnace, as well as the drives of the winding device, the tension mechanism, rollers for moving the fittings, the limiter for moving the fittings, the cutting wheel and the drive drum are electrically connected between yourself through the line control panel. 4. The production line according to claim 1, characterized in that the filament feed modules and the finished reinforcement receiver are located in a plane different from the plane of the remaining line modules.

Images