RU2522641C1 - Composite reinforcement and production line for its production - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: spiral flow device first in production line in process flow is designed for operation with thin roving, device for applying an adhesive coating is installed between the last spiral winding device and polymerisation camera, in this case each of spiral winding device and device for applying an adhesive coating are configured with the possibility of activation/deactivation during operation, the following is located at input into the impregnation apparatus and after the squeezing device: guide combs designed in the form of tensioner elements, squeezing device comprises at least two drums installed in series, designed with the possibility of sequential deactivation, and impregnating apparatus of impregnating bath comprises a series of sequentially installed guide rollers, one of which is placed at the bottom of the bath and installed with gap between its generating line and bottom surface in its lower part within 4-1 mm, besides the lower part of impregnating bath is placed in heating reservoir with water.

EFFECT: creation of high-performance production line for continuous production of high-quality composite reinforcement of the wide range of diameters, design and operational performances using different types of compounds that do not depend on fluctuations in ambient temperature and status of production facilities, work reliability and design available for reproduction and replication.

8 cl, 5 dwg, 1 tbl

Description

The invention relates primarily to the construction industry, in particular to the manufacturing technology of reinforcing elements used for reinforcing conventional and prestressed building and other structures, and can be used in the manufacture of reinforcing structural materials alternative to similar metal and wood.

A known production line for the manufacture of non-metallic reinforcement, including a creel, placed in series with bobbins with roving and tension blocks mounted on its axles, mounted on the creel after each bobbin, an equalizing device, annealing chamber, an impregnation chamber with a bottom made with a slope to the center of the chamber, and tensioning device, molding unit with a block of dies, a prepolymerization chamber and a wrapper, a polymerization chamber, a film or adhesive application chamber rytiya (polymer binder and an abrasive), and nodes for winding armatures and pulling device [Description of the invention to RF patent №2075577 from 20.12.1994, IPC E04C 5/00 ^6, E04C 5/07, publ. 03/20/1997]. The line is characterized by high performance and high quality fittings.

The speed declared in the invention of 0.5 m / min cannot be considered high. In addition, the range of manufactured fittings on the line is very limited.

A known production line for the manufacture of composite reinforcement, consisting of two blocks of basic equipment - a unit for preparation and impregnation of rovings with a polymer binder, including creel and roving spools, a leveling device, an annealing chamber, an impregnating bath, a tensioning device, a forming device, and an external surface structure forming unit reinforcement, including two nodes of the spiral winding, polymerization chambers, a cooling bath, a pulling device, a cutting and reeling unit, while the supply line on one or more additional units of equipment for performing spiral windings of the inner layers of reinforcement, including a unit for preparing and impregnating rovings with a polymer binder, a unit for spiral windings, a polymerization chamber, and a unit for spiral windings, a polymerization chamber and part of the unit for preparing and impregnating rovings with a polymer binder, namely molding node, installed in series between blocks of basic equipment [Description of the invention to the patent of the Russian Federation No. 2417889 from 01.02.2010, IPC B29C 55/00, E04C 5/07, publ. 05/10/2011]. The line is designed to produce high-strength composite reinforcement in the entire range of manufactured diameters.

The disadvantage of this solution is not high enough performance, since the equipment was initially configured to produce valves of maximum diameter, as well as the inability to use various types of compounds.

A technical solution of the production line for manufacturing composite reinforcement is known, including creel-fur with roving spools, leveling device, annealing chamber, impregnating bath with a tension device and its control mechanism located above the impregnating bath, squeezing device, molding unit, spiral winding device, polymerization chambers, pulling device, cutting and reeling units, while the molding unit is made in the form of a matrix with longitudinal channels mounted directly in front of the zone spiral winding, the squeezing device is made of elastic elastic material and installed in front of the matrix, and the leveling device is made in the form of a comb, in which the number of grooves is not less than the number of channels in the matrix [Description of the invention to the patent of the Russian Federation No. 2287646 of 03.21.2005, IPC E04C 5 / 07, publ. November 20, 2006]. In this case, the problem of simplifying the design of the line, increasing its productivity, as well as obtaining non-metallic reinforcement from composite materials with a clearly defined periodic profile is solved.

The disadvantage of this production line, made according to the filterless technology (the method of "needle traction"), is the low productivity. With an increase in the molding speed over 65 m / h, the formed core is twisted during the winding process, which leads to a deterioration in the consumer properties of the manufactured reinforcement.

The closest in the set of essential features of the claimed production line is the technical solution of the technological line for manufacturing composite reinforcement, including creel with roving bobbins, leveling device, annealing chamber, impregnating bath with a tension device, squeezing device, molding unit, two sequentially arranged spiral winding devices, a device for preventing the twisting of fibers and the distribution of the polymer binder along the length of the reinforcement, made in the form of two or more its rollers, polymerization chambers, hauling device, cutting and reeling units [Description of the invention to the patent of the Russian Federation No. 2384408 of 04.16.2008, IPC B29C 39/00, E04C 5/07, publ. 03/20/2010]. This line is characterized by increased productivity, as well as the ability to produce a new type of embossed composite reinforcement with enhanced consumer properties.

The disadvantage of this solution of the technological line is its structural complexity and insufficiently high productivity, as well as the inability to use it in poorly heated rooms, where large temperature differences are possible during the day.

The task to be solved by the first invention of the group and the technical result achieved are to create a high-performance production line for the continuous production of high-quality composite fittings with a wide range of diameters, structural and operational designs using various types of compounds that are independent of fluctuations in ambient temperature and the condition of production facilities. An additional feature of the line is its reliability and design available for reproduction and replication.

To solve the problem and achieve the claimed technical result in the production line for the production of composite fittings, including creel and roving spools, leveling device, heat treatment chamber, impregnating bath with impregnating, squeezing and tensioning devices, molding unit, spiral winding devices placed in series, polymerization chamber , a valve cooling bath, a broaching device and a cutting unit, the first spiral winding device along the process flow It is designed to work with thin roving, an adhesive coating device is installed between the last spiral winding device and the polymerization chamber, and each of the spiral winding devices and the adhesive coating device are made on and off during operation, at the entrance to the impregnation device and after the squeezing device contains guide combs made in the form of tensioning device elements, the squeezing device includes at least two mounted sequentially of the drum, made with the possibility of sequential shutdown, and the impregnating device of the impregnating bath includes a series of sequentially installed guide rollers, one of which is placed in the lower part of the bath and is installed with the formation of a gap between its generatrix and the bottom surface in its lower part within 1-4 mm moreover, the lower part of the impregnation bath is placed in a heated container with water.

Besides:

- the impregnation bath is made with a single or double sloping bottom;

- the valve cooling bath is equipped with a self-cooling device;

- the broaching device is made in the form of two pairs of spring-loaded polyurethane shafts kinematically connected by a chain gear and equipped with guide rollers installed at the entrance to and at the exit of the polyurethane shafts;

- the inner surface of the polymerization chamber is equipped with reflectors made of at least polished (stainless) steel;

- the cutting unit includes a rack for cut-off reinforcement, equipped with a lateral pusher of a beam of reinforcement of periodic action;

- equipped with a device for manufacturing a winding tow with the formation of the harness touched interchangeable coils for equipping them with spiral winding devices.

A typical composite reinforcement includes a reinforcing element obtained on specialized equipment from a roving bundle with a winding of at least one layer of roving and / or tow, impregnated with a curable composite [Description of the invention to the RF patent No. 2194135 from 11/22/2000, IPC 7 ЕС 5/07 publ. December 10, 2002], [Description of the invention to the patent of the Russian Federation No. 2287647 dated March 21, 2005, IPC E04C 5/07, publ. November 20, 2006], [Description of the invention to the patent of the Russian Federation No. 2384676 dated December 26, 2008, IPC E04C 5/07, publ. 03/20/2010], [Description of the invention to the patent of the Russian Federation No. 2384677 dated 04/16/2008, IPC E04C 5/07, publ. 03/20/2010], [Description of the invention to the patent of the Russian Federation No. 2384678 of 09/09/2009, IPC E04C 5/07, publ. 05/10/2010] and others.

The disadvantages of this type of reinforcement are the limited capabilities of its production technology. If we take into account that the operational characteristics of one version of the valve differ little from the characteristics of another version, then the release of the next design requires stopping the production line and changing equipment. And in cases where line stops can be avoided, the number of options still remains limited.

The problem solved by the second invention of the group and the technical result achieved are to expand the range of diameters, design and operational designs of composite reinforcement with stable quality characteristics, produced using various types of compounds on one production line without stopping it.

To solve the problem and achieve the claimed technical result, composite reinforcement, comprising a reinforcing element from a roving bundle with a winding of at least one layer of roving and / or tow, impregnated with a cured composite, is made on the aforementioned production (technological) line.

The invention is illustrated by drawings and a table, where:

- figure 1 shows a General view of the production line for the production of composite reinforcement;

- figure 2 shows the design and location of the guide combs at the entrance to the impregnating device and after the squeezing device;

- figure 3 shows the location of the lower guide roller of the impregnation device relative to the bottom of the impregnation bath;

- figure 4 shows the guide rollers installed at the entrance to the broaching device and at the exit from it;

- figure 5 shows a typical design of composite reinforcement - a General view;

- the table clearly shows typical samples of composite reinforcement obtained without stopping the production line.

The production line for the production of composite fittings includes creel crest 1 with bobbins 2 rovings, a leveling device 3 (for example, in the form of a conditionally not shown typical perforated plexiglass or caprolon plate with a number of holes from 50 to 80), a heat treatment chamber 4 (for drying and burning out oil residues), an impregnating bath 5 with an impregnating device 6, an squeezing device 7 (a typical rotating shaft with a pressed elastic plate), a tensioning device 8, a molding unit 9, arranged in series spiral devices winding 10, 11 and 12, a polymerization chamber 13 (all high-temperature devices of the line are marked “t °”), a valve cooling tub 14, a broaching device 15 and a cutting unit 16, while the first spiral winding device 10 is made for work with thin roving, between the last - pos. 12 - spiral winding device and polymerization chamber 13 there is installed an adhesive coating device 17 (usually sand sprinkling), each of which is a spiral winding device 10-12 and a device 17 applied The adhesive coating is made with the possibility of switching on and off during operation, at the entrance to the impregnating device 6 and after the squeezing device 7, guide rails (or dies) 18 oriented in the form of elements of the tensioning devices 8, respectively, are placed, the squeezing device 7 includes at least two sequentially installed drums 19, made with the possibility of sequential shutdown, and the impregnating device 6 of the impregnating bath 5 includes a series (not conventionally shown) mounted guide rollers, one of which - 20 - is located in the lowest part of the bath 5 and is installed with the formation of a gap 6 between its generatrix and the bottom surface 21 in its lower part within 1-4 mm, and the lower part of the impregnation bath 5 is placed in heated tank. The bottom 21 of the impregnation bath 5 can be made single or double. The valve cooling bath 14 is equipped with a self-cooling device, for example, a fan (not conventionally shown). The broaching device 15 is made, for example, in the form of two pairs of spring-loaded polyurethane shafts 23, kinematically connected to coordinate rotation among themselves by a chain gear and equipped with guide rollers 24 installed at the entrance to and at the exit from the polyurethane shafts 23. The inner surface of the polymerization chamber 13 is provided with reflectors (not shown conventionally) made of at least polished (for example, stainless) steel. The cutting unit 16 includes a rack 25 for cut off reinforcement 26, provided with a lateral pusher 27 of the beam of reinforcement 26 of periodic action.

Additionally, the line is equipped with a device 28 for manufacturing a winding rope with the formation of the harness touched interchangeable coils (bobbins) 29 to equip them with spiral winding devices 11 and 12.

Composite fittings manufactured on the above production line, i.e. in an appropriate way, includes a reinforcing element of roving bundles 30 with a winding in at least one layer of thin roving 31 and / or tow 32 impregnated with a cured composite. Depending on the wishes of the customer and the required parameters, it is possible to obtain various options for the design of reinforcement as a commercial product, the order and sequence of receipt of which is shown in the Table. The specific design of each version of the reinforcement is shown in column No. 5 of the Table or in the first cell containing the figure located to the left of column No. 5 (i.e. the rightmost figure in each row).

We analyze the essential features of the invention.

The composite reinforcement production line can be equipped with at least three spiral winding devices - 10, 11 and 12, while the first device 10 along the process flow is made to work with thin roving 31, the second 11 and third 12 are made to work with a bundle (twisted roving, including one consisting of several threads) 32 and differ from each other in the direction of winding. Further, in the course of the technological process, behind the third spiral winding device 12 there is a device 17 for applying an adhesive coating (usually a sand coating).

The listed four devices 10, 11, 12 and 17 ensure that on the production line without stopping the main range of manufactured composite fittings - fourteen options according to the Table. This is achieved by disabling, if necessary, one or two of any three spiral winding devices 10, 11 and 12, and / or the adhesive coating device 17. It is possible to turn off immediately all four of the listed devices 10, 11, 12 and 17, or simultaneously three devices 10, 11 and 12 of spiral winding. Due to the presence of molding units 9 at the entrance to each of these devices, a beam of sticking rovings impregnated with a compound, however, of an unstable form, enters the polymerization chamber 13. Despite the potential for future use of such rods, they are usually discarded.

In addition to the main options listed above for commodity fittings, there is the possibility of further expansion of its range. After a short stop of the line, it is possible to change the number of roving threads, which will increase or decrease the diameter of the roving bundle and, accordingly, reinforcement (for example, from 3 to 20 mm), and it is also possible to replace the compound in the impregnation bath 5 with another composition (see how it happens - see below). As a result, the same line provides the opportunity to obtain a wide range of composite reinforcement as a commercial product, while the number of options is not limited to fourteen main options.

The application of adhesive coating on the semi-finished product reinforces allows you to increase the degree of adhesion of the finished product with a certain filler, as a rule, concrete mix, polymer, etc. The simplest and most common coating compositions are building sand of various fractions and mineral chips. However, it is also possible to use special polymers, which are applied in the form of a thin film on top of the valve prepared for supply to the polymerization chamber 13. The latter fittings can be used, in particular, in the technology of "stone casting" in the production of certain types (lengthy, massive, etc.) of plumbing devices, etc.

At the entrance to the impregnating device 6 and after the first in the process flow of the squeezing device 7, guide combs 18 made in the form of elements of the tensioning devices 8 are placed. This made it possible to simplify the design of the tensioning devices 8 by combining several functions at once. The combs 18 "comb" the roving threads, form their number, prevent twisting and at the same time provide mechanical friction, which ultimately forms the tensile force in the roving bundle, necessary for high-quality operation of all subsequent line devices.

The squeezing device 7 includes at least two sequentially installed drums 19, made with the possibility of sequential shutdown. Given that the drums 19 have the property of "fouling" with a layer of compound, they are periodically cleaned. In this case, one of the squeezing devices 7 is turned off, and the other is turned on, observing the necessary time for overlapping their joint work.

A similar principle is used in devices 10, 11 and 12 of spiral winding. Two bobbins with thin roving 31 and bundles 32 are installed on them at once. This allows balancing the work of rotating cartridges (faceplates) and after one bobbin with roving 31 or bundle 32 ends, the winding device is turned off, the second one is turned on to the winding of the roving bundle ( spare) bobbin, if possible, change the empty bobbin to full and the device 10, 11, or 12 of the spiral winding is turned on again. In time it takes less than one minute. Subsequently, on the cutting unit 16, the defective reinforcement fragment is rejected.

As mentioned above, the impregnating device 6 of the impregnating bath 5 includes a number of typical sequentially installed guide rollers, one of which - 20 - is located in the lower part of the bath 5 and is installed with the formation of a gap 6 between its generatrix and the bottom surface 21 in its lower part within 1 -4 mm. This solution makes it possible to use the whole or almost the entire compound of the impregnation bath 5. This is facilitated by the implementation of the impregnation bath 5 with a single or gable bottom 21. Given that the lower part of the bath 5 is placed in a heated container 22 with water, it is possible to increase the fluid properties of the compound to make them stable regardless of the ambient temperature, which in the end will make it possible to uniformly impregnate all roving threads with a composite and thus ensure stable and high-quality work of all the last blowing devices, and the line of nodes. To heat the tank 22 with water, you can use, in particular, an independent electric heater and / or hot water from the tank 14 cooling valves. The latter will reduce the temperature of the cooling water reinforcement.

After the impregnation bath 5 is freed from the compound, it can be washed, filled in with a new compound (including a compound of a different color), including one having other properties. In the latter case, regulate the temperature of the water in the heated tank 22, bringing it to the level set for this compound.

The broaching device 15 is made in the form of two pairs of spring-loaded polyurethane shafts 23 kinematically connected to each other by a chain transmission and equipped with guide rollers 24 installed at the entrance to and at the exit from the polyurethane shafts 23. This ensures the stability of the pulling and, accordingly, pushing forces, regardless of changes in the profile of the beam 30 of rovings with windings 31 and 32.

The first guide rollers 24 along the process flow paired with the second control the wear of polyurethane shafts 23 - when profiled wear paths appear on the shafts 23, the rollers 24 are shifted by the necessary step and so on several times until the surfaces of the polyurethane shafts are completely worn 23. Second along the process flow the guide rollers 24, in addition, provide longitudinal stability of the reinforcement bar. This is important at the time of cutting, when due to the pushing force, the relative movement of the cutting unit 16 is ensured.

To increase the rate of polymerization of the compound in the polymerization chamber 13 when using typical heaters, the inner surface of the chamber 13 is provided with infrared reflectors. The simplest version of reflectors can be polished stainless steel sheets. In combination with an increase in the length of the chamber 13, as well as an improvement in its thermal insulation, operating temperatures can reach 415 ° C, which makes it possible to produce valves of large diameters (up to 20 mm and more) with a capacity of up to 400 m / h (at small diameters) without deteriorating it high-quality and operational properties.

High productivity of the line requires forced cooling of the valves leaving the polymerization chamber 13. For this, the line is equipped with a special bath 14 with water. A hot "endless" billet, passing through water, is cooled to a set temperature and acquires the necessary strength properties, of which the longitudinal stability (for pushing the trolley of the cutting unit 16) and rigidity (for maintaining the geometric shape) are relevant.

In order not to increase the volume of the valve cooling bath 14, it can be equipped with a self-cooling device. As a rule, a fan blowing around the surface of the bath is sufficient for this. 14. In addition, part of the water inevitably flows into a special pan 33, where it is also cooled and from where it is again fed into the bath by means of a circulation pump (not shown), in the cold season. can be used to heat the production room.

The cutting unit 16 is a typical moving trolley (not shown conditionally) with a cutting mechanism that turns on when the reinforcement reaches a predetermined length and includes a rack 25 for the cut off reinforcement 26, equipped with a lateral pusher 27 of a reinforcing beam bundle of periodic action. This allows you to automate the process of forming the same bundles of reinforcement for their subsequent transfer to the consumer or sending to the warehouse.

An important element of the production line is its equipping with a device 28 for manufacturing a winding bundle from either one or several threads with the formation of replaceable coils 29 from the bundle to equip them with spiral winding devices 11 and 12 that form a profile on the roving bundle. A tourniquet is obtained, as a rule, by twisting (twisting) several threads of thin rovings. Thus, there is no need to form a tourniquet directly in the process of winding (a significant complication of the equipment and a decrease in its reliability), and from the roving manufacturer they acquire a minimal range of starting materials. As a rule, these are mineral (glass, basalt, carbon, etc.) threads, polymer (nylon, polyester, etc.) threads, as well as fibers of plant origin (jute, flax, hemp, etc.) of one or two thicknesses.

In the rest, the design of the production line uses technical solutions traditional for such devices.

The above set of essential features of the production line provides the claimed technical result.

As for composite reinforcement, its consumer properties and variability are provided by the equipment of the production line on which it is manufactured. This does not exclude the possibility of manufacturing any of the options, or even two or three options on other production lines, which would require re-adjustment with full stop of the lines while maintaining the initial quality of the reinforcement. The claimed production line ensures the production of a minimum of fourteen variants of structural designs of valves of stable quality without even a short stop. Given the productivity of the line, which reaches 360 m / h (6 m / min, 10 cm / sec) and more, this distinguishes it from similar devices.

When changing the compound, it is necessary to develop a previously filled composition. In this case, the location of the lowest guide roller 20 of the impregnation bath 5 and the corresponding configuration of its bottom 21 becomes relevant. Possible residues of the previously filled compound make up such a small part that it does not affect the properties of the newly filled. As you can see, in this case, stopping the production line may not be required.

When switching to a smaller diameter reinforcement, it is enough to cut off the excess roving and leave the required number of threads. It also does not require a line stop.

When switching to a larger diameter reinforcement, a short stop of the line will be required to refuel additional roving.

The technological line for the manufacture of composite reinforcement operates as follows. Roving from coils (bobbins) 2 pass leveling device 3, which carries the additional function of dividing the roving canvas into separate bundles. The leveling device 3 not only forms bundles of rovings entering the heat treatment device 4, but also carries an additional separation function, which is necessary so that the bundles do not become entangled with each other. In the device 4 heat treatment at a temperature of 150-250 ° C is the removal of moisture and residual oil. Then the roving bundles enter the impregnation bath 5, filled with a polymer binder with the required operating temperature for this compound, and the tensioning devices 8, having control mechanisms for the convenience of controlling the tension of the threads, are located above the impregnating bath. After the impregnation bath 5, the roving bundles pass through the squeezing device 7, while the spin force is regulated. The excess binder from individual roving bundles goes back to the bath 5. Then the bundles 30 through the molding device 9 fall into the spiral winding zone, where they are wrapped with thin roving and / or bundle, as a rule, from the same using the corresponding spiral winding devices 10, 11 and 12 material (in this case, the profile is formed depending on how many rotating cartridges (faceplates) are used - see the Table. As a result, a reinforcing bar with a periodic profile is formed. For the formation of a clearly defined periodic Phil armature winding harness 32 must be circular in cross section and diameter sufficient to form the relief. The depth of the indentation 31 and a thin roving winding harness 32 is regulated.

The impregnation of the winding cord 32 and thin roving 31 with a polymer binder is carried out due to the excess compound (resin) in the array of bundles 30 rovings.

If necessary, an adhesive coating is applied to the semi-finished product, for example, sand of appropriate fractions.

Next, the workpiece enters the polymerization chamber 13, where it is exposed to temperatures up to 415 ° C for 70-90 seconds, from where it is pulled through the water cooling bath 14 by the broaching device 15 and fed to the valve cutting unit 16.

Thus, on the production line, the entire standard range of composite fittings of all possible design and operational versions is obtained.

For greater clarity, the implementation process required for the manufacture of a specific version of the reinforcement technology should refer to the Table. The “0” symbol indicates that special equipment that needs to be disconnected as part of the production line. The far right picture gives an idea of the final product.

Consider the characteristics of a typical sample of composite reinforcement obtained on the production line, using the example of an ASP-8 product of a periodic profile with an external diameter of 8 mm.

Compound Used:

- glass roving linear density 2400 tex - 70%;

- resin ED-20 - 18%;

- IMTFA - 11%;

- modifiers Etal and Alkofen - 0.5% each.

The temperature of the compound in the impregnation bath is 40 ° C.

The resulting composite reinforcement of a periodic profile has a supporting rod with a total density of 52800 tex. The winding rope has a nominal diameter of 2 mm and consists of one specially twisted roving with a density of 2400 tex with a winding pitch of 12 mm and a width of the wound rope from 2 to 3 mm depending on the degree of tension, the height of the spiral relief is from 1.0 to 1.5 mm

The line provides a speed of pulling reinforcement of 320 m / h.

The finished product is characterized by the following indicators:

- density 2.2 g / cm ³ ;

- binder content 29%;

- the degree of polymerization of the binder 93%;

- the weight of one running meter of 80 g.

Strength properties of composite reinforcement:

- breaking stress at break - not less than 1100 MPa;

- tensile modulus E = 42500 MPa.

The presence of an adhesive coating increases the degree of adhesion of the reinforcement to the future filler in the composition of building and other structures.

As a result of the use of inventions, a high-performance production line was created for the continuous production of high-quality composite reinforcement and the corresponding reinforcement was obtained for a wide range of diameters, structural and operational versions using various types of compounds.

Claims (8)

1. A production line for the production of composite fittings, including creel crepes with roving bobbins, a leveling device, a heat treatment chamber, an impregnating bath with impregnating, squeezing and tensioning devices, a molding unit, spiral winding devices placed in series, a polymerization chamber, a valve cooling bath, a broaching device and cutting unit, characterized in that the first spiral winding device along the process flow is made to work with thin roving between the last device A spiral winding device and a polymerization chamber have a device for applying an adhesive coating (usually sand sprinkling), and each of the spiral winding devices and an adhesive coating device are made on and off during operation, at the entrance to the impregnating device and after the squeezing device guiding combs made in the form of tensioning device elements are placed, the squeezing device includes at least two sequentially mounted drums, they can be sequentially switched off, and the impregnating device of the impregnating bath includes a series of guide rollers installed in series, one of which is placed in the lower part of the bath and is installed with a gap between its generatrix and the bottom surface in its lower part within 1-4 mm, the lower part of the impregnation bath is placed in a heated container with water. 2. The line according to claim 1, characterized in that the impregnation bath is made with a single or double slope bottom. 3. The line according to claim 1, characterized in that the valve cooling bath is equipped with a self-cooling device. 4. The line according to claim 1, characterized in that the broaching device is made in the form of two pairs of spring-loaded polyurethane shafts kinematically connected to each other by a chain gear and equipped with guide rollers installed at the entrance to and exit from the polyurethane shafts. 5. The line according to claim 1, characterized in that the inner surface of the polymerization chamber is equipped with reflectors made of at least polished (stainless) steel. 6. The line according to claim 1, characterized in that the cutting unit includes a rack for cut off reinforcement, equipped with a lateral pusher of a reinforcing beam of a periodic action. 7. The line according to claim 1, characterized in that it is equipped with a device for manufacturing a winding tow with the formation of a harness of replaceable coils for equipping them with spiral winding devices. 8. Composite reinforcement, comprising a reinforcing element from a beam of rovings with a winding of at least one layer of roving and / or tow, impregnated with a cured composite, characterized in that it is made on a production line according to any one of claims 1 to 7.

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