A method of manufacturing woven wire mesh and device for its implementation
(57) Abstract:Usage: the equipment for manufacture of woven hexagonal mesh in the design and manufacturing of machines for the production grid with hexagonal cells with mutually twisted wires. The inventive method of manufacturing grid is that the wire from one of the coils rotate around the other coils, periodically throwing them from one station to the next located other modem, and then produce the twisted strand) wire. The invention provides two types of machine. In both machines the nodes unwinding of the wire is made in the form of a device for winding wire coils, half of which is placed on one plate and the other half on the other plate. In the plate located between the first plate and the mechanism of twisting holes with the end of the segment cut part, which is installed with the drive rotors. The rotors on special unwinding devices installed coils. The rotors on one side is also cut off. In these sections pass the wire from unwinding devices of the first plate. The twisting mechanism is made in the form of two strips, equipped with a drive of their counter-reciprocating movement. Slices of this is in the data with one hand. On the opposite side of the fixed tube for the passage of wires in them. The rotors rotate synchronously with the rotation of the bushings and the transfer wires, due to the mechanism of transfer, from one rotor to the other synchronous transfer slats in the twisting mechanism. 18 C.p. f-crystals., 19 Il. The invention relates to equipment for the production of twisted hexagonal metal mesh and can be used in the design and manufacturing of machines for the production of wire mesh according to GOST 13603-68.Known machines (plant them. Lepse, Solnechnogorsk) German company Wafios that use the charger coil with wire and tube, multilayer spiral wire, and sivalee device. However, such walls are low due to the use of nizhnetulomsky spirals: they cannot produce the mesh wire diameter of 1 mm and above.The closest technical solution is the device A. with. NN 1397130, 1397131, CCCP, CL 21 F 27/02; containing installed on the frame node unwinding wires from the coils, the mechanism of twisting, pulling the drum with teeth to form cells, the mechanism of the winding of the grid in the roll and the drive. However, as in the German machines, trebuet the STS (due to the use of nizhnetulomsky coils), and also requires a special rewind branch wire coils on the coil.The purpose of the invention improve the performance of the production grid and functionality of the machine.This goal is achieved by the fact that the method, which consists in alternately twisting adjacent wires between a rotation of the pairs of coils of wire around an axis between them, the periodic transfer coils in adjacent rotor and the winding wire cloth in roll or cutting grid paintings on leaves, in addition, a wire wound with coils or spool, rotate the wire in the rear coils (spool) around the front coils (spool) located between the rear coils (spools) and a twisting mechanism, periodically throw a wire in the rear coils (spool), after rotation in a few turns and forced to rotate around the other adjacent the front coils (spool, and then produce the twisted wires).Because of this there is no need to rewind wire coils (or spool of wire manufacturer) on the charging coil or spiral, and also increases the productivity of the machine by increasing the coefficient used in the carcass, the more capacity of the spiral.The invention is illustrated in the drawings, which depict the machine used for implementing the method.In Fig. 1 shows a diagrammatic representation of machine in the plan, Fig. 2 shows the mesh generated on the machine, Fig. 3 shows schematically a first position of the rotors node twisting wires, Fig. 4 the second position of the rotors of Fig. 5 shows the nodes of unwinding wire from a spool of Fig. 6 shows a first modification of the execution mechanism wire transfer at nodes unwinding wires, Fig. 7 shows the mechanism of Fig. 8 shows a second modification of the mechanism of transfer of the wires in the nodes of the coil wires, Fig. 9 shows the drive rail of Fig. 10 shows the structure of a Cam mechanism of Fig. 11a, 11b illustrates a third modification of the mechanism of transfer of the wires in the nodes of the coil wires, Fig. 12 shows the node twisting wires, Fig. 13 shows the mechanism of transfer plates (dies), Fig. 14 shows the fourth modification of the mechanism of transfer of the wire in the nodes of the unwinding of the wire, Fig. 15 shows a side view of another machine of Fig. 16 section D-D in Fig. 15, in Fig. 17 shows a plate with unwinding devices of the front coils-section G-G "rotated", Fig. 18 scheme is in Fig. 15.For purposes of clarity in understanding the proposed method of manufacturing woven wire mesh first comes the design and operation of machines of Fig. 1-19. The device (machine) for the production of woven wire mesh consists of the following main components and mechanisms:
nodes unwinding wire from coils (spool).the mechanism for perekidki wires,
the twisting mechanism,
pull the drum,
the mechanism of the grid winding into a roll,
the rotational drive of the main details.In Fig. 1 shows a machine tool in which the nodes of the unwinding of the wire are placed in an arc (to save space).Nodes unwinding of the wire from the coils (Fig. 1, 5) contain: rear number of devices 1, the front row of devices 2, bar 3 to perekidki wires 4, the head 5 of the tension wires 4.The mechanism of twisting (Fig. 1, 12) contains (Fig. 1) the rear bar 6 and the front bar 7.The mechanism for perekidki wires made in different variants (Fig. 1, 6-11, 13, 14) consists of two mechanisms: the first is to perekidki wires in the nodes of unwinding and Fig. 1 contains the bar 3, the Cam 8 mounted on the shaft 9, the second is for perekidki wires in the mechanism of twisting and headerget pulling the drum 11 and the winding mechanism of the grid to the roll 12.The rotational drive of the main parts (Fig. 1) includes: an electric motor 13, which rotation is transmitted to:
the shaft 9 through a chain transmission 14 and a conical pair 15,
unit 10 through the gear 16,
the drum 12 of the winding of the grid in the roll through a belt drive 17,
on sprockets 18, 19 (mounted on a frame 7, 6), and then on sprockets 20, 21, which are fixed on the shaft 22, through a pair of conical 23.The design of each of the above main components and mechanisms the following.Nodes unwinding wire from coils (spool) in Fig. 1, 5 contain, as already mentioned, the back row of the device 1, the front row of the device 2, the bar 3. In Fig. 5, each device 1 consists of a rack 24 fixed to the common base 25 for all devices 1. The rack 24 is rigidly fixed to the axle 26 on which is freely mounted device 27 located therein a coil 28 of the wire 4. Instead of the coil 28 is possible to install a spool of wire, which is supplied by the manufacturer of the wire. The spool 28 is pressed in the axial direction (to the right) through the disc 29 by a spring 30 attached to the sleeve 31, which is fixed by a nut 32. The axis 26 is freely mounted rotor 33, which on the one hand fixed rod (leash) 34, 4 rolls 28 and it is equipped with guide wires 37, 38.Each device 2 consists of the total of the strap 39 which through step equal to the distance between the device 1, is made open from the top (or bottom) end of the strap holes (this is clearly shown in Fig. 6-8, 11 - section b-B in Fig. 1). The sprocket 40 is rigidly fixed to the rotor 41, which is freely mounted in the hole of the strap 39, each rotor 41 with one side cut longitudinally, as shown in Fig. 6-8, 11, and on the sprocket 40 one (or more) of the tooth may be cut off. The rotor 41 is made from the opposite side cut of the hole, which is equipped with a 42 passes for passage of a wire 43 with l coil 44. It is noted that the wire 43 in order not to obscure the drawing, Fig. 1 is not shown. Roll 44 is mounted on freely located in the rotor 41 of the device and it pushed right through the disk 46 by the spring 47, rests on the flange 48, which is rigidly attached to the hub device 45. On the rotor 41 whether on the strip 39 has a latch 49, in which rests a spring 50. To slow down the device 50 on it and on the inner end of the rotor 41 is fixed friction discs 51. Sprockets 36 are driven rotation from the sprocket 21, the sprocket 40 of the sprocket 20, and both branches of the chain sprocket 40 est what oterom base 25 and strap 39 have the opportunity periodic counter move (Fig. 1 is shown by arrows V) in special guides (not shown in the drawing, since it is not significant). In the case where the substrate 25 and the bar 39 are connected rigidly mounted on the frame of the machine), it uses a special mechanism perekidki wires, which can be made in several versions, but all versions of advanced between devices 1 and 2 is installed wiring 52 for passage of the wire 4. In this version, the rod 34 is applied, shortened 0-0 (Fig. 5), the device 1 is displaced relative to the device on a half-step, sprocket 36, 21 can be excluded. When you first embodiment of the mechanism perekidki wires, at the location of the transactions 52 above the center of the devices 1, 2, wiring 52 is fixed in plate 53 (see Fig. 9) mounted pivotally on an axis 54 on the bars 55 are pivotally on an axis 56 is installed on the rack 57. On the axes 56 fixed gear 58 which engages with the rack 59, secured to the rod 60. Rod 60 (see Fig. 10) are biased by spring 61 to the working surface of the Cam 62 (Fig. 1 item 8). Moreover, the strap 53 (Fig. 1 item 3) with its mechanisms can be established only between devices 1 and 2 (as shown in Fig. 1), but still the same strap with mechanisms can be Boca surface is performed on the reset rod 60. Such Cams are installed at both ends of the rod, i.e., running one hand, and then the second. After a reset rod (as shown in Fig. 10) Cam stops its rotation, and the other Cam is rotated, and after the reset rod second Cam, the first starts to rotate. If you are using one of the Cam and at its uniform rotation of the work surface is as shown in Fig. 10 by the dashed line. Instead of flat Cams can be used spatial Cam in which the Cam groove is made with two sudden changes.When running the Cam 8 in Fig. 1 (Cam 62 in Fig. 10) with the working surface as in Fig. 10, in the form of corderoite, i.e. when the strap 43 makes no sudden movement, and smooth reciprocating motion, the delay of the wire 4 in the slice of the rotor 41, when it is rotating it in a few turns, use device or Fig. 6, 7, or according to Fig. 11. The device according to Fig. 6 contains the bar 63, the holes which has a rod 64, the lower ends of which are hinged curly strips 65. The rods 65 are fitted with coil springs 66 and their upper ends 67 are in contact with the Cams 68, which are fixed on the shaft 69, is equipped with a rotational drive.on the crank fingers 72, and the base 25 on the crank fingers 73 (Fig. 11 shows the first embodiment of the ultrasonic crystals unwinding of the wire when the strap 39 and the base 25 is periodically moved towards each other, but the rod 34 short).In Fig. 14 shows the following variant of the mechanism perekidki wires. In this case, the strap 39 and the base 25 of the stationary and strap 3 (55) has a sharp mechanism (Cam according to Fig. 10) reciprocating motion. In strip of 3 (53) is performed in increments of holes of the strap 39, the holes in each of which the bearings are installed, the sleeve 74, the end of which is fixed to the rotor 75. The rotor 75 is fixed to the rod 76 having provodov a system similar to the rod 34, in Fig. 5. The sleeve 74 is equipped with a sprocket 77.When the machine is equipped with a mechanism perekidki wires (base 25 and strap 39 stationary), then roll 28 have horizontally, i.e., the axle 26 is mounted on the base 25, and there is no need for the application of the rotor 33 (bar 34), i.e., wire coil 28 is directly in the wiring 52.The implementation of the twisting mechanism shown in Fig. 12, 13, it contains the bar 78 (Fig. 1 item 6) and the bar 79 (Fig. 1 item 7), in which holes on the analogy of vypolnyavshemu sleeve 80, in the fixed tube 1 and 8 which from falling out is closed by a cover 82. Sleeve 80 is equipped with a rotational drive from the sprocket 83. The tube 81 is equipped transactions 84, 85 for the passage of the wire 4. In terms of 79 (7) installed sleeve 86, which is fixed to the tube 87 and which from falling out is closed by a cover 88. Sleeve 86 is equipped with a rotational drive from the sprocket 89. The tube 87 is equipped with wires 90, 91 for the passage of the wire 43. Sleeve 80,86, sprockets 83, 89 the side opposite to the tubes 81,87 cut.Strap 78(6), 79(7) is equipped with a drive of their quick counter-periodic movement, which is shown in Fig. 13. Strap 78 (6) pivotally mounted on the platinum 92, one of which is articulated through a rod connected with the arm 94. Strap 79 (7) pivotally mounted on the plates 95, one of which is articulated through a rod connected with the arm 94. Strap 97(7) pivotally mounted on the plates 95, one of which is articulated through the rod 96 is connected with the other arm of the rocker arm 94. Plate 92,95 pivotally mounted on the rack 97. The rocker hinge 94 98 installed on a bracket 99 fixed to the rack 100.The actuator is equipped with a mechanism spring tension, which consists of Cams 101, 102, rocker arms 103, 104, rods 105, 106, the ends of which sacramen the Cam 109, which is in contact with both sides of the pusher 110, fixed to the shaft 111, the hole through the rocker 94.In Fig. 13 position 112 shows the circuit, which are below the sprocket 83, 89 and are with them in engagement. These chains go around idle sprockets 113 and drive sprockets 18, 19 (see Fig. 1) on the other hand.In Fig. 15-19 shows a different (than in Fig. 1) the implementation of a machine for the manufacture of woven mesh. This machine is the most promising for efficient use of production space and contains the same basic components and mechanisms (as the machine of Fig. 1):
nodes unwinding wire from coils (spool),
the mechanism for perekidki wires,
the twisting mechanism,
pull the drum,
the mechanism of the grid winding into a roll,
the rotational drive of the main details.The machine according to Fig. 15 shows in a vertical design, but it can be done and horizontal version.Nodes unwinding wire from coils (spool) contain the lower range of devices and the upper range of devices. The design of each node unwinding like executing them in Fig. 5, 8. The lower the number of devices placed on the plate 114, and the distribution scheme ostroy Fig. 17.On each axis 115 freely (with a gap) installed the ROM 116, which is fixed to the curved rods 117, forming a frame on which is dressed coil 118. Instead of the coil 118 can be used spool with wire, which is supplied by the manufacturer of the wire. On the hub of the disc 116 with a gap (free) installed led 119 a guide wire 120 with the rolls 118. Drove 119 if necessary, can be equipped with an asterisk, similar to the sprocket 36 in Fig. 5. The top row of devices installed on the plate 121, the form of which is to save space specifically designed and shown in Fig. 17. The bottom plate rests on the racks 122 and it made the hole, with one hand free (see Fig. 17) in which is installed with a gap (fluent) rotors 123, equipped with a sprocket 124. Moreover, the rotor 123 initial rotor chain rotors (similar to Fig. 1) and K end of the rotor. Rotor 123 is also on one side of the slice (R1<R), and the asterisks in the place of the cut part of the rotor tooth (teeth) is also cut off. The plate 121 to its end mounted on the frame 125 of the machine. In the rotor 123 freely mounted disk 126, which is fixed to the curved rods 127, forming a frame, which is dressed coil of wire 128 and 129, which is the chev opposite direction from the drive sprocket 130 (see Fig. 17, 18) through a sprocket 124 using endless chains 131 (for clarity completed figure 18, which is a copy of figure 17, but which is not shown the holes in the plate 121 is, in order not to obscure the drawing), which is schematically illustrated in Fig. 18. The sprocket 130 is a rotational drive from the shaft 132 through bevel gears 133 and 134. For more coverage of circuit 131 sprocket 124 mounted idle sprocket (rollers) 135 and 136.The mechanism for perekidki wires includes (see Fig. 15, 19) rack 137), on which hinged on an axis 138 is installed film 139 in which fixed wiring 140 for wires 120. On the other hand straps 139 articulated on an axis 141 is installed rope 142 (or chain), which has its ends mounted on the rocker 143 through the hinges 144. The arm 143 on the axis 145 is installed on the bracket 146. Further, the mechanism is made or as in Fig. 13 (instead of the rocker arm 143 rocker 143), or as in Fig. 9, 10 then one shoulder rocker 143 pivotally connected with the rod 60. In order for the rope 142 served all trims 139, wiring 140, which are in working condition (which is the twisting of the wires 129 and 120) on the centers of the rotors 123, it passes around the guide rollers, which are not shown, because it is not beings, 3, or as machine company Wafios when the wire periodically twisted in a different direction. It contains two strips 147, 148 which are mounted on the frame they drive their periodic counter move. In these bars mounted for rotation Paldiski 149, 140, in which fixed wiring for the passage of the wire 120, 129.Paldiski 149, 150 equipped with a drive of their periodic opposite rotation, which in Fig. 15 are not shown, because it is immaterial.The machine is equipped pulling drum 151 with teeth for the formation of grid cells. On the shaft of the drum is equipped with a pulley 152, through which the flat belt transmits rotation to the pulley 153 drum on which is wound wire cloth 154 in the roll 155. The holes in the plate 30 and the plate 121 is equipped with bearings 156 rolling, which is conventionally shown in Fig. 8.The gear 16 of the machine according to Fig. 1 (similar to the machine of Fig. 15) it is possible to install gears with offset centers that provides the maximum speed of rotation of the sprockets 18, 19, 20, 21 at the time of twisting wires and the minimum speed at the time of perekidki wires and perekidki bars 6, 7.The machine according to Fig. 1-14 (similar to Fig. 15-19 his position details P> During the rotation of the motor shaft 13 to rotate the sprocket 14, 18, 19 (130), bevel gear 15, 34 (133, 134), the shafts 22 (132), the pulleys 17 (152, 153), Cams 8, 101, 102, 109, 62. When the drum 11 (151) will pull the wire cloth, and the drum 12 (155) will wrap it in a roll.During operation of the machine in the nodes of the unwinding of the wire, and mechanism for perekidki wires (Fig. 8-10, 19) made the following motion (Fig. 5 rod 34 short 0-0). From the sprocket 21 through a chain drive to rotate the rotor 33, and the rod 34 by pulling the wire 4 rotates the device 27 with a coil 28. From sprocket 20 (130), through chain transfer (131) rotating the rotor 41 (123), and 4 wire (120), passing through the wiring 52 (140) are cut off part of these rotors, as shown in Fig. 8, 17. The rotor 41 (123) revolving, pull wire 43 (129), causing the rotating device 45 (126, 127) with coils 44 (128). The twisting mechanism according to Fig. 12, 15 of the sleeve 80, 86 (Paldiski 149,150) also rotate synchronously with the rotor 41 (123) and 27. After making these rotors and bushings a few turns (for example, four full turns) and when the cut part of the rotors, bushings will coincide with the open places of the holes of their bars are crossover wires 4 (120) in the truncated part is located near ccov 101, 102 already stretched corresponding spring 107 and 108 and the decline of the Cam 109 approached the pusher 110 (or the depression of the Cam 62 by the end of the rod 60 in Fig. 9, 10). Due to the spring is a sharp crossover straps 6, 7 (147, 148) towards each other and a plate 53 (rocker 143, strips 139) from one extreme position to the other, resulting in tube 81, 87 fall into slices adjacent bushings, and 4 wire (120) are in sections adjacent rotors 41 (123). Then the cycle repeats. Similarly performed in the mechanism and Fig. 14. In the arrangements according to Fig. 6, 7, 11 at this point, the strap 65 or pins 71 "let go" of the wire 4. In figures 9, 7, 17 arrows P1P2P3(P) shows the movement of the wires 4(120). In Fig. 2-4 schematically shows the formation of the grid.In Fig. 1 shows that the nodes of the coil (rotor) of the wire are placed in an arc, and Fig. 17 special kind of curve "a" shaped, but they can sit in a circle, that the figures are not shown, because it is not essential and easy to perform.From the device machines becomes clear and the method of manufacturing woven wire mesh, which is described in the claims. 1. A method of manufacturing woven wire mesh, which consists in poochera is set with the wire passing around between the axis periodic transfer packages in adjacent rotor and the winding wire cloth in roll when cutting wire cloth sheets, characterized in that the wire wound with coils or spool, the first half of which is located in the rear or bottom row unwinding devices of the machine, and the other half in the second row unwinding device, located between the rear or bottom rows unwinding device and mechanism for twisting the wire coils in the rear or bottom row unwinding devices rotate around the roll or spool of line, located between the rear or near the bottom unwinding device and the twisting mechanism, periodically sending wire coils or spool in the rear or bottom row unwinding devices through a few turns of their rotation to the adjacent modem or spools of the second row unwinding device for rotation around the roll or spool, and then make periodic twisting of wires in the mechanism of twisting.2. The method according to p. 1, characterized in that the twisted wires produce simultaneous rotation of the wires in the mechanism of twisting rotation of the wire coils (spool) rear number unwinding devices around the coils (the spool is Cove (spool) rear number unwinding devices around the coils (spool) of the second row unwinding device and the rotation of the wires in the mechanism of curl produced in the same direction.4. The method according to PP.1 and 3, characterized in that the wire coils (spool) of the second row unwinding devices also rotate around the axis of rotation of the wire coils (spool) back row or the bottom row unwinding devices.5. The method according to p. 1, characterized in that the wire coils (spool) back or bottom row unwinding devices, and wire twisting mechanism, periodically rotate in different directions.6. The method according to p. 1, characterized in that the wire coils (spool) rear number unwinding devices rotate at a uniform speed, and wire twisting mechanism rotate with variable speed or intermittently short of their rotation is halted, and the number of revolutions over a long period of time the wire coils in the back unwinding devices and wires in the mechanism of twisting choose the same.7. The method according to p. 1, characterized in that the wire coils and rear and second row unwinding devices, and wire twisting mechanism rotate in one direction with an uneven speed, at the time of twisting wires rotate at maximum speed, and at the time of perekidki wires them rotate at a minimum speed of Ramee installed on the frame node unwinding of the wire from the coils, the mechanism of twisting, pulling the drum with teeth to form cells, the mechanism of the winding of the grid in the coil and the actuator, characterized in that the node unwinding of the wire is made in the form of two rows of unwinding devices: rear or bottom row unwinding device and the second row unwinding device, located between the rear near unwinding device and the twisting mechanism, each of the unwinding device number, which is located between the rear near unwinding device and the twisting mechanism, includes a rotor with one-side cut-away part in the form of a segment, in which the wire from the device rear or bottom row, the rotor is mounted in an aperture plate with one-way in the form of a segment of the open part of the hole, the rotor is equipped with a motor for rotation in one direction or the periodic rotation in opposite directions in the rotor, the space available for installation of the rolls (spool) wire on the unit to its mounting with the possibility of rotation relative to the rotor, the rotor on the opposite side of his cut parts made guide wire your skein, each of unwinding device in the rear of the bottom row is fixed on a plate or rack, fixed n is eat a possibility of free rotation, the mounting of the rolls is equipped with a leash, which made a guide for the passage of the wire coil, the leash has the capability of free rotation or equipped with a drive of its rotation, the plates of both series unwinding of stationary devices, and between them and between the second near unwinding device and the mechanism of twisting mechanisms are established for perekidki wires containing strips mounted on hinges, straps secured passes for the passage of wires from the coils (spool) back or bottom row unwinding devices and trims are equipped with a drive of their periodic rolling in the joints.9. The device under item 8, characterized in that the plate of the second row unwinding devices are through an U-shaped groove, on both sides of which are through holes segmentnode their part in the direction of the groove and the holes are installed rotors with a segment cut off sides.10. The device under item 8, characterized in that the plates are arranged in either horizontally or vertically, or inclined to the horizontal surface.11. The device under item 8, characterized in that the holes in the plates are equipped with ball bearings.12. The device mocnych devices back in the cut parts of the rotors of the second row, completed or in the form of shaped strips, the working surface of which is still missing part of the holes in the plate with drive approach-retraction of the slats, or in the form of obliquely mounted on the shaft pins.13. The device according to PP.8 and 9, characterized in that the drive rotor is in the form of a sprocket fixed to the rotor, and an endless chain which engages one side with stars, and the task plate on p. 9 chain covers all sides of the U-shaped groove with the location of the drive (or idle) stars within about crossbar "P".14. The device according to PP. 8 and 9, characterized in that the ends of the slats mechanism for perekidki wires hinged on the rope or chain passing through the by-pass roller and the ends secured to the rocker, whose shoulders are in contact through the rods with the working surface of the Cam.15. The device under item 8, characterized in that the mechanism for perekidki wires made in the form of strips, feature driven reciprocating motion, which made holes in increments of step holes unwinding device, holes are the rotors with a Central hole for the wire W is p. 8, wherein the rear plate and the second row unwinding devices installed or in guides, or hinge on the cranks and is equipped with a mechanism of their counter-periodic reciprocating motion.17. The device under item 8, characterized in that the twisting mechanism made in the form of two parallel strips mounted pivotally on the cranks and is equipped with a drive of their counter-periodic movement in the planks is made segmental openings, and on one plate, they are open to one end of the strap and another strap to the opposite first hole set segment cut from one side of the sleeve, equipped with a drive of their rotation in one direction or the periodic rotation in opposite directions, but synchronous rotation of the rotors unwinding device, in the bushes on the opposite side they cut part of the fixed tube with transactions for the passage of wires.18. The device according to PP. 8 and 17 for the implementation of the method according to p. 7, characterized in that it is equipped with a gear or gear train with offset holes, which provide a maximum speed of rotation of the collet mechanism scru) during the transfer of the wires in the nodes of the roll-out and transfer strips mechanism curl.19. The device under item 8, characterized in that both series unwinding devices are arranged in an arc or circle.
SUBSTANCE: invention is related to protective nets, intended for reinforcement of slope against fall, and to methods of their manufacturing. Net is made with diagonal plaiting and is woven of twisted wire strands bent in the shape of spirals, armature bundles or cords, which comprises two or more wires or twisted wire strands of steel. Method for manufacturing of protective net consists in the fact that twisted wire strand, cord or armature bundle is fed with a certain angle of lift at least to one bending mandrel of device and is bent at a certain length around bending mandrel approximately by 180°, then repeatedly moved along their longitudinal axis to bending mandrel at a certain length, bent accordingly around bending mandrel by 180° until this twisted wire strand, cord or armature bundle does not achieve shape of spiral, besides wire strand bent in the form of spiral, cord or armature bundle are woven together with the second twisted wire strand, cord or armature bundle bent in the form of spiral, and this is repeated until net is made with diagonal plaiting of desired value.
EFFECT: optimal fixation of slope is achieved, as well as damage danger is reduced.
9 cl, 4 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to machine building and may be used for producing braided gauzes. Proposed method comprises forming first unit helices by set of blades to preset length at preset pitch and expending them by expansion mechanism in helix axes to preset pitch defined by claimed relationship. forming second unit helices by second set of blades arranged opposite the first set at opposite side of produced gauze with shift relative to first unit helices through gauze pitch to ensure preset pitch in continuous rotation of helices. Said helices slide from blades to get braided into expanded helices of the first set to make gauze fragment. Length of said helices is selected appropriately. First unit helices are released from expansion mechanism and shifted to open the zone. Second unit helices are cut in said zone to cut finished gauze fragment to be displaced for connection with the next fragment. Gauze next fragment and connection helix are made, for the latter to be braided in the last helix of the next fragment and to the first helix of previous fragment over the entire length of all helices. Cycle is reiterated unless required length of gauze is produced.
EFFECT: production of fine gauzes.
4 cl, 2 dwg