Multi-layer steel cord integrated forming production equipment and method

Abstract

The invention discloses multi-layer steel cord integrated forming production equipment which comprises an unpowered pay-off machine, a DOS single-wheel ring-free double-twisting machine, a DFM multi-wheel ring-free double-twisting machine, a torsion correction machine and a take-up machine which are sequentially arranged. An electromagnetic tension device is arranged at the lower end of a pay-off shaft of the unpowered pay-off machine; a first cradle is arranged on the DOS single-wheel ring-free double twisting machine, and an I-shaped wheel is mounted on the first cradle; the DFM multi-wheel double-ring double twisting machine is driven by a main motor, a second cradle is connected with the shaft ends of the two torsion shafts through bearing seats at the two ends, and the second cradle can be replaced; the tension control system drives the two ten-groove guide wheels in a servo motor torque mode; a servo motor of the torsion correcting machine drives a false twister shaft to rotate, and two multi-layer guide wheels are installed on the false twister shaft. Two procedures can be completed on one machine, the DTS technology of externally releasing and internally taking up is compared with the machine type of a second cradle without a flywheel ring, the quality is guaranteed, and labor, efficiency and energy consumption production cost are considered at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of steel cord production, and in particular to a multi-layer steel cord integrally formed production device and method. Background Art

[0002] With the popularity of electric vehicles (EV), the demand for lightweight and high-performance tires has increased. As an important component of tires, steel cord will see a steady growth in demand in the future. Electric vehicles require tires to be not only durable, but also lighter and more efficient, which provides impetus for the technological advancement of steel cords. With the continuous advancement of automotive technology, consumers' performance requirements for tires have gradually increased, especially in terms of high-speed driving, safety, wear resistance, and low rolling resistance. Steel cord will be able to meet the demand for high-performance tires, especially in the field of high-end models and racing cars, by improving strength, toughness and durability. At present, the automotive market is highly competitive, and products manufactured by production processes and equipment with high production costs have no price advantage and quality assurance.

[0003] Traditional steel cord production equipment can no longer meet the development of steel cord with higher performance requirements. Figure 2 As shown in 3*0.20+6*0.35HT, Figure 3 The high-strength new steel cords such as 3+8*0.33HT shown are produced using traditional manufacturing equipment and traditional processes. In the rope twisting process, two processes are required to produce them. There are many intermediate processes with high number of lathes, high energy consumption, large product occupancy, high labor intensity in transportation, and relatively high production costs. Summary of the invention

[0004] The object of the present invention is to provide a multi-layer steel cord integrated molding production equipment and method, which can complete two working steps on one machine. Compared with the DTS process of external release and internal retraction, it not only ensures the quality but also takes into account the labor and energy consumption production costs, so that the yield rate of steel cord is significantly improved. At the same time, the production efficiency is effectively improved, so as to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A multi-layer steel cord integrated production equipment comprises an unpowered pay-off machine, a DOS single-wheel ringless double-twist machine, a DFM multi-wheel double-twist machine, a torsion correction machine and a take-up machine which are arranged in sequence; the unpowered pay-off machine comprises a frame, a pay-off base, a pay-off shaft bearing seat, a pay-off shaft, a guide roller, a tension guide wheel, an I-shaped wheel A is installed on the pay-off shaft, and an electromagnetic tension device is installed at the lower end of the pay-off shaft; the DOS single-wheel ringless double-twist machine is provided with a first cradle, an I-shaped wheel B is installed on the first cradle, and a main motor drive of the DFM multi-wheel double-twist machine is connected to the DOS single-wheel ringless double-twist machine; the DFM multi-wheel double-twist machine is driven by a main motor, and two DFM torsion shafts and a second The cradle is connected through the bearing seats and two torsion shafts and shaft ends at both ends, and the second cradle can be replaced; a tension control system is equipped between the DOS single-wheel ringless double-twist machine and the DFM multi-wheel double-ring double-twist machine; the tension control system drives two ten-slot guide wheels through the servo motor torque mode, and a tension sensor guide wheel is arranged between the two ten-slot guide wheels; the servo motor of the torsion correction machine drives the virtual twister shaft to rotate, and two multi-layer guide wheels are installed on the virtual twister shaft, and the two guide wheels adopt an 8-shaped winding method; the wire taking-up machine includes two wire feeding guide wheels, a torsion detection control device, a precision metering device, a tension control device, a wire arrangement device, a reverse metering device, a wire taking-up motor and a pneumatic ejector.

[0006] A further solution of the present invention is that an electromagnetic tension device controls the pay-off tension of the I-shaped wheel A. After the steel wire is paid out from the I-shaped wheel A, it passes through the pay-off guide roller and is wound onto the tension guide wheel. A tension sensor is installed under the tension guide wheel. After being wound onto the outlet guide wheel, the wire enters the DOS single-wheel ringless double-twisting machine.

[0007] A further solution of the present invention is that the power of the DOS single-wheel ringless double-twist machine comes from a transmission shaft, which is adjusted forward and reversely through pulleys and a double-sided toothed synchronous belt is used to transmit the torque to the horizontal axis. There are two bearing seats at both ends of the horizontal axis, and the bearings use self-aligning roller bearings; two pulleys with the same number of teeth are provided on both sides of the horizontal axis, which drive the two torsion shafts through synchronous belts and maintain synchronous rotation.

[0008] A further solution of the present invention is that the first cradle is made of aviation aluminum, the wire-releasing brake of the I-spool B uses a brake belt made of copper-containing tetrafluoroethylene to control the tension, and the steel wire wound on the I-spool B uses a single-wire or multi-wire process, and the number of I-spools is one or three.

[0009] A further solution of the present invention is that the DFM multi-wheel double-ring double-twist machine is driven by a main motor, and the DFM transverse axis is driven to rotate through three V-belts and V-belt pulleys; self-aligning deep groove ball bearings are used for the shaft seats on both sides of the DFM transverse axis, and two synchronous pulleys with the same number of teeth are installed on the DFM transverse axis; the synchronous pulleys respectively drive the two DFM torsion shafts and the two same-type pulleys above through two same-type synchronous belts to keep rotating in the same direction and speed; two flywheel rings are connected to the flywheel discs of the two DFM torsion shafts, and the flywheel rings have cords passing through small alloy holes, and a second cradle is provided between the two DFM torsion shafts, which is connected to the shaft ends of the two DFM torsion shafts through the bearing seats at both ends, and when the two DFM torsion shafts rotate, the second cradle remains stationary under the action of gravity.

[0010] A further solution of the present invention is that a synchronous pulley is installed at the left end of the DFM horizontal axis, and the synchronous pulley is driven by the synchronous belt to transmit the torque to the gear box. The gear box contains a group of bevel gear reducers and a group of replaceable helical cylindrical gears to drive the main traction wheel to rotate. The rotation speed of the main traction wheel can be changed through the synchronous pulley, the different numbers of teeth of the synchronous pulley, and the number of teeth of the helical cylindrical gears in the gear box; a straightener bracket is installed on the left side of the gear box, and straighteners of different specifications can be installed on the straightener bracket.

[0011] A further solution of the present invention is that the second cradle can be replaced, and the second cradle is a 6-wheel cradle, a 9-wheel cradle, a 12-wheel cradle or a 15-wheel cradle; a brake disc is installed on the DFM horizontal axis, and the entire equipment can be braked by a pneumatic brake device; at the right horizontal end of the DFM, a pulley is installed to transmit the twist to the DOS single-wheel ringless double twist machine, and the lay pitch of the DOS single-wheel ringless double twist machine is adjusted by replacing the synchronous pulley and replacing it with a different number of teeth.

[0012] A further solution of the present invention is that after the steel cord on the torsion correction machine comes out, it enters the wire-in guide wheel, passes through the torsion detection control device and the torsion sensor, and bypasses the tension wheel; the tension wheel is installed on the tension swing rod, and a tension spring is installed on the tension swing rod. By changing the tension of the spring, the tension of the steel cord winding can be adjusted; after passing the tension swing rod, bypassing the meter wheel of the precision meter device and then bypassing the reverse bow high wheel, it is wound on the finished product I-shaped wheel; the wire arrangement wheel and the reverse bow high wheel are fixed on the wire arrangement device, and are driven by a wire arrangement motor through the flat bottom to move back and forth There are two electromagnetic sensors installed on the wire arrangement device. When the edge of the winding I-shaped wheel is detected, the wire arrangement motor is controlled to reverse to achieve the purpose of reciprocating wire arrangement. At the traction end of the pneumatic thimble, there are two proximity switches on the pulley, which can determine whether the I-shaped wheel D is rotating forward or reverse, that is, to confirm whether it is winding or releasing the wire. Winding the wire is counted by meters, and releasing the wire is counted in reverse, so as to ensure that the number of meters of the closed reel is normal; when the reel is flipped, it is confirmed that it is reversed, and the number of revolutions is determined to determine the number of reversed meters, thereby ensuring that the number of meters of the steel cord is consistent with the actual length.

[0013] A further solution of the present invention is that a torsion detection device is provided on the wire take-up machine, the steel cord passes around the torsion detection wheel and then enters the wire take-up machine. When the steel wire has torsional stress, the detection wheel will rotate, and the torsional stress value will be detected by the torsion sensor, and the speed of the servo motor of the torsion correction machine will be controlled by PLC.

[0014] A multi-layer steel cord integral molding method, using the above-mentioned multi-layer steel cord integral molding production equipment, comprises the following steps: There are two pay-off positions on the unpowered pay-off machine, which can hold two WS50 I-shaped wheels A; the pay-off guide wheel enters the DOS single-wheel ringless double-twist machine from the center hole of the torsion shaft at the right end of the DOS single-wheel ringless double-twist machine.

[0015] It passes through the upper wing of the left end torsion shaft from the flying wing by bypassing the first steering wheel; it passes through the steering wheel on the right side of the torsion shaft and comes out from the center hole; it rotates around the first cradle driven by the two flying wings; a non-powered pay-off machine is used when producing three-layer steel cord, but not used when producing two-layer steel cord; the first cradle of the DOS single-wheel ringless double-twist machine is equipped with a WS50 I-shaped wheel A, which can wind 50KG of steel wire. According to different production specifications, single-wire, double-wire or triple-wire take-up can be used, that is, multiple steel wires can be wound at the same time; the core strand is released from the middle I-shaped wheel A of the DOS single-wheel ringless double-twist machine, and the brake belt is used to control the pay-off tension; it passes through the reversing wheel on the left side of the torsion shaft and comes out from the lower flying wing; it passes through the steering wheel on the left side of the torsion shaft and comes out from the center hole on the left side of the torsion shaft; then it is wound around the two winding wheels of the tension stabilizing device; after winding 10 circles on the winding wheel, it passes around the tension sensor guide wheel.

[0016] Enter the DFM multi-wheel double-ring double-twist machine from the center hole of the torsion shaft on the right side of the DFM multi-wheel double-ring double-twist machine; the core strand bypasses the steering wheel on the right side of the torsion shaft, passes through the upper flywheel ring to the steering wheel on the right side of the torsion shaft and enters the second cradle; the steel wires released from multiple I-shaped wheels C on the second cradle enter the rope maker together and are twisted into ropes in the rope maker; the core strand is in the middle, and the steel wire released from the second cradle on the multi-wheel double-ring double-twist machine is wound on the outer layer; the roped steel cord bypasses the steering wheel on the left side of the torsion shaft, passes through the lower flywheel ring to the torsion shaft, bypasses the steering wheel on the left side of the torsion shaft, and passes through the center of the torsion shaft; enters the guide wheel, passes through the guide wheel and enters the torsion correction machine; 8-shaped winding is performed on the two multi-groove wheels on the virtual twister shaft and passes through the left end of the virtual twister shaft; bypasses the double guide wheels, passes through the straightener, and enters the traction wheel from the lower guide wheel. The two traction wheels adopt the 8-shaped winding method, pass the traction wheel, pass the guide wheel and enter the wire take-up machine.

[0017] After the cord passes the traction wheel, it is a low tension area. The cord tension is determined by the spring on the rocker guide wheel; the spring is adjusted to change the take-up tension, and the cord wraps around the guide wheel and hangs on the torsion detection wheel. After the torque sensor detects the torque, the PLC controls the servo motor to adjust the speed to adjust the cord torsional stress to meet the production requirements. The cord wraps around the two guide wheels of the tension rocker and goes down into the cable arranger, the meter wheel on the cable arranger, and then wraps around the reverse bow high wheel, which is two double-layer guide wheels, and finally wraps around the take-up I-shaped wheel; the take-up motor drives the take-up I-shaped wheel to reel in through the synchronous pulley, and the speed of the take-up motor is controlled by the swing amplitude of the tension rocker.

[0018] Beneficial effects of the present invention: The multi-layer steel cord integrated molding production equipment and method of the present invention merges the equipment of two processes into one process, reduces the number of equipment by 40%, reduces the plant floor space by 40%, reduces the number of workers by 30%, and reduces the direct production cost by 10%.

[0019] The multi-layer steel cord integrated production equipment and method of the present invention has a non-powered pay-off machine part, which can place two 50 I-shaped wheels at the same time, and both adopt an electromagnetic tension control system to control the pay-off tension to be constant; the pay-off device has a tension alarm device, which alarms when the tension exceeds the set range, and alarms and stops when it exceeds the shutdown range; the pay-off device is provided with a wire break alarm device, which alarms and stops after the wire breaks. The pay-off device uses a tension sensor guide wheel to monitor the tension change, and when the tension does not meet the setting, it alarms and stops through a set program.

[0020] The multi-layer steel cord integrated molding production equipment and method of the present invention comprises a DOS single-wheel ringless double-twist machine part, a 50 I-shaped wheel is placed in the first cradle; a design of a horizontal shaft driving two torsion shafts is adopted; the torsion shaft does not use a steel belt, but a single-wing or double-wing design is used; two reversing wheels are installed on the torsion shafts at both ends; a tension control system is installed at the outlet end; the tension control system adopts a servo motor tension mode and a tension sensor to control the output tension in a closed loop; a reversing design is realized by a double-sided toothed synchronous belt; a safety protection cover device is provided, a cylinder is used to control the opening and closing of the cover shell, and the cover shell is operated by both hands; the rotation speed is changed by replacing the synchronous belt pulley.

[0021] The multi-layer steel cord integrated molding production equipment and method of the present invention, the DFM multi-wheel double-ring double-twist machine part adopts a double torsion shaft design; the torsion shaft has two reversing wheels; a double flywheel ring (steel belt) design is adopted; a replaceable cradle design is adopted; the second cradle has a 6-wheel cradle, a 9-wheel cradle, a 12-wheel cradle, and a 15-wheel cradle design, the 6-wheel cradle uses a WS34 I-shaped wheel, the 9-wheel cradle uses a WS18 I-shaped wheel, the 12-wheel cradle uses a WS9 I-shaped wheel, and the 15-wheel cradle uses a WS9 I-shaped wheel; a main motor drives the horizontal axis design; a design in which the horizontal axis simultaneously drives two torsion shafts to operate synchronously through a synchronous pulley; a pneumatic brake pad and a pneumatic brake are used for braking; a bevel gear reduction box drives the traction wheel; the reduction box changes the traction speed and the rotation speed ratio by replacing the transmission gear, and changes the steel cord twist pitch; the traction wheel adopts a 10-slot traction wheel design.

[0022] The multi-layer steel cord integrated molding production equipment and method of the present invention, the torsion correction machine part is driven by a servo motor; a synchronous belt is used for transmission; the groove wheel is installed obliquely, with an angle of 5 degrees with the direction of the inlet and outlet lines; the winding method is 8-shaped; the rotating body is made of aviation aluminum alloy material; the installation cover uses a cylinder to drive the pin, and a safety design that prohibits opening when rotating is adopted.

[0023] The multi-layer steel cord integrated molding production equipment and method of the present invention has a wire take-up machine that can take up an I-shaped wheel with a diameter less than 260 mm and a length less than 400 mm; it is equipped with a torsion detection device; a torque sensor is used to detect the torsion stress of the cord; the wire take-up speed and wire take-up tension are controlled by a spring and a tension swing rod; a double meter wheel design is adopted; a reverse bow height wheel is installed to control the bow height range of the steel cord; a servo motor belt cable arrangement design is adopted; and a countdown meter device is designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is the cross-sectional diagram and model of 3*0.20+6*0.35HT steel cord.

[0026] Figure 3 This is the cross-sectional diagram and model of 3+8*0.33HT steel cord.

[0027] Figure 4 It is a schematic diagram of the 8-shaped winding method of the guide wheel in the torsion correction machine of the present invention. DETAILED DESCRIPTION

[0028] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments.

[0029] Example 1: Figure 1As shown, the equipment is divided into five parts, a non-powered pay-off machine 1, a DOS single-wheel ringless double-twisting machine 2, a DFM multi-wheel double-ring double-twisting machine 3, a torsion correction machine 4, and a take-up machine 5.

[0030] The unpowered pay-off machine 1 is composed of a frame, a pay-off base, a pay-off shaft bearing seat, a pay-off shaft, a guide roller, a tension guide wheel, and an electromagnetic tension device 59. The electromagnetic tensioner is used to control the pay-off tension of the I-shaped wheel A57. The wire I-shaped wheel A57 is installed on the pay-off shaft. The electromagnetic tension device 59 is installed at the lower end of the pay-off shaft. After the wire is released from the I-shaped wheel A57, it passes through the pay-off guide roller and is wound around the tension guide wheel 58. A tension sensor is installed below the tension guide wheel 58. After it is wound around the outlet guide wheel, it enters the DOS single-wheel ringless double twisting machine 2. Working principle: The wire is wound around the I-shaped wheel A57. With different winding diameters, the force arm of the wire pulling the wheel to rotate is different when the wire is paid off. When the reel is full, the force arm pulling the wire is the full reel radius, and when it is about to be emptied, the force arm pulling the wire is the empty reel radius. The traditional use of a tension belt to control the pay-off tension is affected by many factors such as temperature, speed, and wire reel diameter, and the pay-off tension is unstable. This leads to looseness, uneven lay length, bulging, small particles and other cord defects after the rope is formed. The pay-off adopts an electromagnetic tension device and a tension sensor to form a tension closed-loop control. When the tension sensor on the tension guide wheel detects the tension change, the electromagnetic tensioner is controlled to adjust the general PID parameters to ensure the stability of the pay-off tension.

[0031] DOS single wheel ringless double twist machine 2, this machine is designed to be lightweight based on the original small double twist machine. The original two flywheel rings are cancelled to reduce wind resistance and save energy consumption by about 30% (refer to Table 1). The first cradle that can hold 2-4 I-shaped wheels B8 is replaced with a smaller one that only holds a total of 50 kg I-shaped wheels B8. The advanced production method of winding multiple steel wires on a single wheel is adopted to achieve the same production effect while saving space and energy. The machine is not equipped with an electric motor, and is driven by the main motor of the machine DFM multi-wheel double ring double twist machine 3. The power comes from the transmission shaft 42, through the pulleys 43 and 11, using a double-sided toothed synchronous belt to achieve forward and reverse adjustment, and transmit the torque to the horizontal shaft 45. There are two bearing seats at both ends of the horizontal shaft 45, and the bearings use self-aligning roller bearings. On both sides of the horizontal shaft, there are two pulleys 44 and 47 with the same number of teeth, which drive the two torsion shafts 9 and 6 to keep synchronous rotation through synchronous belts 48 and 10. The machine does not use a flywheel ring (steel belt), which will greatly reduce the drag coefficient. The I-shaped wheel B8 is installed on the first cradle, which is made of aviation aluminum, light weight, stable operation, and small shaking. The wire release brake of the I-shaped wheel B8 uses a brake belt made of copper-containing tetrafluoroethylene to control the tension, and the tension control is stable. The steel wire wound on the I-shaped wheel B8 can be made of a single wire or a multi-wire process. The design can be three I-shaped wheels B8, or one I-shaped wheel B8 can release the wire in a multi-wire process.

[0032] Table 1 is a comparison of the energy consumption of the present invention and the existing process

[0033] A tension control system 13 is provided between the DOS single-wheel ringless double twist machine 2 and the DFM multi-wheel double-ring double twist machine 3. The tension control system 13 uses the servo motor torque mode to drive two 10-slot guide wheels. The steel cord is repeatedly wound between the two guide wheels 10 times, and then passes through the tension sensor guide wheel 12 and enters the DFM multi-wheel double-ring double twist machine 3. According to different product specifications, the tension control system can be set, and the tension of the steel cord entering the DFM multi-wheel double-ring double twist machine 3 is strictly controlled within a certain range, which is conducive to rope formation, and the yield rate is comparable to the existing process level.

[0034] DFM multi-wheel double-ring double-twist machine 3. The equipment is driven by a main motor 35, and drives the DFM horizontal shaft 36 to rotate through three V-belts and V-belt pulleys 33 and 34. The shaft seats 37 on both sides of the DFM horizontal shaft use self-aligning deep groove ball bearings. Two synchronous pulleys 32 and 39 with the same number of teeth are installed on the DFM horizontal shaft. The synchronous pulleys 32 and 39 drive the two same-type pulleys 21 on the two DFM torsion shafts 20 and 15 through two same-type synchronous belts 14 to keep rotating in the same direction and speed. Two flywheel rings 18 are connected to the flywheel discs of the two DFM torsion shafts 20 and 15, and the cords on the flywheel rings 18 pass through the alloy small holes. There is a second cradle 16 between the two DFM torsion shafts 20 and 15, which is connected to the shaft ends of the two DFM torsion shafts 20 and 15 through the bearing seats at both ends. When the two DFM torsion shafts 20 and 15 rotate, the second cradle 16 remains stationary under the action of gravity. The second cradle 16 can be replaced. According to the different specifications of the products, the second cradle 16 can be replaced with one that can install different numbers of I-shaped wheels C17. Including but not limited to 6-wheel cradles, 9-wheel cradles, 12-wheel cradles, and 15-wheel cradles, each second cradle 16 and the bearing seats at both ends of the torsion shaft are designed as quick-release interfaces to achieve the function of quickly replacing the cradle. The more wheels the second cradle 16 can install, the more steel wires the products can produce. In this embodiment, a 9-wheel cradle is installed, and 5 WS18 I-shaped wheels C17 can be installed on both sides symmetrically. A brake disc is installed on the DFM horizontal shaft 36, and the entire set of equipment can be braked by a pneumatic brake device 38. At the right end of the DFM horizontal shaft 36, a pulley 40 is installed to transfer the torsion to the DOS single-wheel ringless double twisting machine 2. By replacing the synchronous pulleys 40 and 41 and replacing them with different numbers of teeth, the lay length of the twisted rope of the DOS single-wheel ringless double twisting machine 2 can be adjusted. At the left end of the DFM horizontal axis 36, there is a synchronous pulley 22, which drives the synchronous pulley 31 through the synchronous belt to transmit the torque to the gear box 30. The gear box contains a set of bevel gear reducers and a set of replaceable helical cylindrical gears to drive the main traction wheel 29 to rotate. The different numbers of teeth of the synchronous pulley 22 and the synchronous pulley 31 and the number of teeth of the helical cylindrical gears in the gear box can change the speed of the main traction wheel 29. On the left side of the gear box 30, there is a straightener bracket 29, on which straighteners of different specifications can be installed. The straightener has the function of removing stress and eliminating some residual torsion.

[0035] The torsion correction machine 4 uses a servo motor 26 to drive the virtual twister shaft 27 to rotate through a synchronous pulley 25 and a synchronous pulley 24. Two multi-layer guide wheels are installed on the virtual twister shaft, such as Figure 4As shown, the two guide wheels adopt the 8-shaped winding method. After the cord comes out of the DFM multi-wheel double-ring double-twist machine 3, you can choose the advanced torsion correction machine 4 or the advanced straightener. The winding method is different according to the production specifications and process requirements. Working principle of the torsion correction machine: after multiple strands of steel wire are twisted into a wire rope, there must be torsional stress (want to loosen up). However, the residual torsion required in the production process of steel cord is very strict. The residual torsion of 5 meters in length cannot exceed 3-4 turns (depending on the product specifications). By forcibly twisting the steel cord, plastic deformation is generated to offset the torsional stress, and then the same torsion is subtracted. There is a torsion detection device on the take-up machine 5, and the cord bypasses the torsion detection wheel 50 and then enters the take-up device. When the steel wire has torsional stress, the guide wheel 50 will be rotated. The value of the torsional stress is detected by the torsion sensor 51. The speed of the servo motor 26 of the torsion correction machine is controlled by PLC to achieve the purpose of eliminating the torsional stress of the cord.

[0036] The wire take-up machine 5 is used to reel the steel cord onto the BS80, BS60, and BS40 stamping I-shaped wheels D commonly used in the market. It consists of two wire guide wheels 49, a set of torsion detection and control devices, a set of precision metering devices, a tension control device, a wire arrangement device, a reverse metering device, a wire take-up motor, and a pneumatic ejector. After the steel cord comes out of the torsion correction machine 4, it enters the wire guide wheel 49, passes through the torsion detection and control devices 50 and 51, and bypasses the tension wheel 52. The tension wheel 52 is installed on the tension swing rod, and a tension spring is installed on the tension swing rod. By changing the tension of the spring, the tension of the steel cord winding can be adjusted. After passing the tension swing rod, bypassing the metering wheel and then bypassing the reverse bow high wheel 54, it is wound onto the finished I-shaped wheel D. The wire arrangement wheel 53 and the reverse bow high wheel 54 are fixed on the wire arrangement device, and are driven by a wire arrangement motor through the flat bottom to move back and forth. There are two electromagnetic sensors installed on the cable arranging device. When the edge of the winding wheel D is detected, the cable arranging motor is controlled to reverse to achieve the purpose of reciprocating cable arranging. At the pneumatic thimble traction end, there are two proximity switches on the pulley 55, which can determine whether the wheel D is rotating forward or reverse, that is, to confirm whether it is winding or releasing the wire. Winding the wire is counted by meters, and releasing the wire is counted by reverse meters, so as to ensure that the number of meters of the closed reel is normal. When the reel is reversed, it is confirmed that the reel is reversed, and the number of revolutions is determined by the number of revolutions. In this way, the number of meters of the steel cord is consistent with the actual length.

[0037] The specific working principle of the present invention is as follows: There are two pay-off positions on the unpowered pay-off machine 1, which can be used to place two WS50 I-shaped wheels A57; the pay-off guide wheel enters the DOS single-wheel ringless double-twisting machine 2 from the center hole of the torsion shaft 6 at the right end of the DOS single-wheel ringless double-twisting machine 2.

[0038] It bypasses the first steering wheel and passes from the flying wing 7 to the upper flying wing of the left end torsion shaft 9; it bypasses the steering wheel on the right side of the torsion shaft 9 and passes out from the center hole; it rotates around the first cradle driven by the two flying wings; the unpowered pay-off machine 1 is used when producing three-layer steel cord, and is not used when producing two-layer steel cord; a WS50 I-shaped wheel A57 is installed in the first cradle of the DOS single-wheel ringless double-twist machine 2, and the I-shaped wheel A57 can wind 50KG of steel wire. According to different production specifications, single-wire, double-wire or triple-wire winding can be used, that is, multiple steel wires can be wound at the same time; the core strand is released from the middle I-shaped wheel A57 of the DOS single-wheel ringless double-twist machine 2, and the brake belt is used to control the pay-off tension; it bypasses the left reversing wheel of the torsion shaft 6 and passes out from the lower flying wing; it bypasses the left steering wheel of the torsion shaft 9 and passes out from the left center hole of the torsion shaft 9; then it is wound around the two winding wheels of the tension stabilizing device 13; after winding 10 circles on the winding wheel, it bypasses the tension sensor guide wheel 12.

[0039] Enter the DFM multi-wheel double-ring double-twist machine 3 from the center hole of the right torsion shaft of the DFM multi-wheel double-ring double-twist machine 3; the core strands bypass the right steering wheel of the torsion shaft 15, pass through the upper flywheel ring 18 to the right steering wheel 19 of the torsion shaft 20, and enter the second cradle 16; and enter the rope maker together with the steel wires released by the multiple I-shaped wheels C17 on the second cradle 16, and are twisted into ropes in the rope maker; the core strands are in the middle, and the steel wires released by the second cradle 16 on the multi-wheel double-ring double-twist machine 3 are wound on the outer layer; the steel cord after being roped bypasses the torsion shaft 1 The steering wheel on the left side of 5 passes through the flywheel ring below to the torsion shaft 20, bypasses the steering wheel on the left side of the torsion shaft 20, and passes through the center of the torsion shaft 20; enters the guide wheel 23, passes through the guide wheel 23 and enters the torsion correction machine 4; 8-shaped winding is performed on the two multi-grooved wheels on the virtual twister shaft 27 and passes through the left end of the virtual twister shaft 27; bypasses the double guide wheels 60 and passes through the straightener 61 from the lower guide wheel to enter the traction wheel 29. The two traction wheels 29 adopt the 8-shaped winding method, pass through the traction wheel 29, pass through the guide wheel 60 and enter the wire take-up machine 5.

[0040] After the cord passes the traction wheel, it is in the low tension area, and the cord tension is determined by the spring 62 on the rocker guide wheel; the spring is adjusted to change the take-up tension, and the cord passes around the guide wheel 49 and is hung on the torsion detection wheel 50. After the torque sensor 51 detects the torque, the PLC controls the servo motor 26 to adjust the speed to adjust the cord torsional stress to meet the production requirements. The cord passes around the two guide wheels of the tension rocker and goes down into the cable arranger, the meter wheel 53 on the cable arranger, and then goes around the reverse bow high wheel 54, which is two double-layer guide wheels, and finally goes around the take-up I-shaped wheel D; the take-up motor 56 drives the take-up I-shaped wheel D to reel through the synchronous pulley, and the speed of the take-up motor is controlled by the swing amplitude of the tension rocker.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-layer steel cord integrated production equipment, characterized in that: It includes a non-powered pay-off machine (1), a DOS single-wheel ringless double-twisting machine (2), a DFM multi-wheel double-ring double-twisting machine (3), a torsion correction machine (4) and a take-up machine (5) which are arranged in sequence; The unpowered pay-off machine (1) comprises a frame, a pay-off base, a pay-off shaft bearing seat, a pay-off shaft, a guide roller, a tension guide wheel, an I-shaped wheel A (57) is installed on the pay-off shaft, and an electromagnetic tension device (59) is installed at the lower end of the pay-off shaft; The DOS single-wheel ringless double-twist machine (2) is provided with a first cradle, on which an I-shaped wheel B (8) is installed, and the main motor of the DFM multi-wheel double-ring double-twist machine (3) is connected to the DOS single-wheel ringless double-twist machine (2); The DFM multi-wheel double-ring double-twist machine (3) is driven by a main motor, and a second cradle (16) is provided between the two DFM torsion shafts (20) and (15) and connected via bearing seats at both ends of the torsion shafts, and the second cradle (16) is replaceable; A tension control system is provided between the DOS single-wheel ringless double-twist machine (2) and the DFM multi-wheel double-ring double-twist machine (3); the tension control system drives two ten-slot guide wheels through a servo motor torque mode, and a tension sensor guide wheel (12) is provided between the two ten-slot guide wheels; The servo motor (26) of the torsion correction machine (4) drives the virtual twister shaft (27) to rotate, and two multi-layer guide wheels are installed on the virtual twister shaft (27), and the two guide wheels adopt an 8-shaped winding method; The wire take-up machine (5) comprises two wire feed guide wheels (49), a set of torsion detection control devices, a set of precision metering devices, a tension control device, a wire arrangement device, a reverse metering device, a wire take-up motor and a pneumatic ejector.

2. A multi-layer steel cord integrated production equipment as claimed in claim 1, characterized in that: The electromagnetic tension device (59) controls the pay-off tension of the I-shaped wheel A (57). After the steel wire is paid out from the I-shaped wheel A (57), it passes through the pay-off guide roller and is wound onto the tension guide wheel (58). A tension sensor is installed below the tension guide wheel (58). After being wound onto the outlet guide wheel, the steel wire enters the DOS single-wheel ringless double-twisting machine (2).

3. The multi-layer steel cord integrated production equipment according to claim 1, characterized in that: The DOS single-wheel ringless double twisting machine (2) is powered by a transmission shaft (42), which is adjusted by a double-sided toothed synchronous belt through pulleys (43) and (11) to achieve forward and reverse rotation, and transmits torque to a transverse shaft (45). The two ends of the transverse shaft (45) have two bearing seats, and the bearings use self-aligning roller bearings. The two sides of the transverse shaft are driven by two pulleys (44) and (47) with the same number of teeth, and the two torsion shafts (9) and (6) are kept in synchronous rotation through synchronous belts (48) and (10).

4. A multi-layer steel cord integrated production equipment as claimed in claim 3, characterized in that: The first cradle is made of aviation aluminum, the wire release brake of the I-shaped wheel B (8) uses a brake belt made of copper-containing tetrafluoroethylene to control the tension, and the steel wire wound on the I-shaped wheel B (8) uses a single-wire or multi-wire process, and the number of I-shaped wheels B (8) is one or three.

5. The multi-layer steel cord integrated production equipment according to claim 1, characterized in that: The DFM multi-wheel double-ring double-twist machine (3) is driven by a main motor (35) and drives the DFM transverse shaft (36) to rotate through three V-belts and V-belt pulleys (33) and (34); the shaft seats (37) on both sides of the DFM transverse shaft (36) use self-aligning deep groove ball bearings, and two synchronous pulleys (32) and (39) with the same number of teeth are installed on the DFM transverse shaft (36); the synchronous pulleys (32) and (39) respectively drive the two DFM torsion shafts (20) and (15) through two synchronous belts (14) of the same model. The same type of pulleys (21) rotate in the same direction and at the same speed; two flywheel rings (18) are connected to the flywheel discs of the two DFM torsion shafts (20) and (15), and cords are passed through small alloy holes on the flywheel rings (18); a second cradle (16) is provided between the two DFM torsion shafts (20) and (15) and connected through bearing seats at both ends of the torsion shafts; the second cradle (16) is a gravity self-balancing mechanism, and when the two DFM torsion shafts (20) and (15) rotate, the second cradle (16) remains stationary under the action of gravity.

6. The multi-layer steel cord integrated production equipment according to claim 5, characterized in that: A synchronous pulley (22) is mounted on the left end of the DFM transverse shaft (36), and a synchronous pulley (31) is driven by a synchronous belt to transmit torque to a gear box (30). The gear box (30) has a set of bevel gear reducers and a set of replaceable helical cylindrical gears to drive the main traction wheel (29) to rotate. The rotation speed of the main traction wheel (29) can be changed by different numbers of teeth of the synchronous pulley (22) and the synchronous pulley (31), as well as the number of teeth of the helical cylindrical gears in the gear box (30). A straightener bracket (29) is mounted on the left side of the gear box (30), and straighteners of different specifications can be installed on the straightener bracket (29).

7. The multi-layer steel cord integrated production equipment according to claim 5, characterized in that: The second cradle (16) is replaceable. The second cradle (16) is a 6-wheel cradle, a 9-wheel cradle, a 12-wheel cradle or a 15-wheel cradle. The second cradle (16) and the bearing seats at both ends of the torsion shaft are quick-release interfaces to achieve the function of quickly replacing the second cradle (16); a brake disc is installed on the DFM horizontal shaft (36), and the entire equipment can be braked through a pneumatic brake device (38); a pulley (40) is installed at the right end of the DFM horizontal shaft (36) to transmit the torsion to the DOS single-wheel ringless double twisting machine (2). By replacing the synchronous pulleys (40) and (41) with different numbers of teeth, the lay pitch of the rope of the DOS single-wheel ringless double twisting machine (2) can be adjusted.

8. The multi-layer steel cord integrated production equipment according to claim 1, characterized in that: After exiting the torsion correction machine (4), the steel cord enters the wire guide wheel (49), passes through the torsion detection control device (50), the torsion sensor (51), and bypasses the tension wheel (52); the tension wheel (52) is mounted on a tension swing rod, and a tension spring is mounted on the tension swing rod. By changing the tension of the spring, the tension of the steel cord winding can be adjusted; after passing the tension swing rod, bypassing the meter wheel of the precision meter device and then bypassing the reverse bow high wheel (54), the steel cord is wound onto the finished product I-shaped wheel D; the wire arrangement wheel (53) and the reverse bow high wheel (54) are fixed on the wire arrangement device, and a wire arrangement device is formed. The motor is driven by the flat bottom to move back and forth; two electromagnetic sensors are installed on the wire arrangement device, and when the edge of the winding spool D is detected, the wire arrangement motor is controlled to reverse, so as to achieve the purpose of reciprocating wire arrangement; at the traction end of the pneumatic ejector, there are two proximity switches on the pulley (55), which can determine whether the spool D is rotating forward or reverse, that is, to confirm whether it is winding or releasing the wire, and the winding is counted in meters, and the releasing is counted in reverse meters, so as to ensure that the number of meters of the closed reel is normal; when the reel is reversed, it is confirmed that the reel is reversed, and the number of meters of the reversed reel is determined according to the number of rotations, thereby ensuring that the meter length of the steel cord is consistent with the actual length.

9. The multi-layer steel cord integrated production equipment according to claim 1, characterized in that: The wire take-up machine is provided with a torsion detection device. The steel cord passes around a torsion detection wheel (50) and then enters the wire take-up machine. When the steel cord has torsion stress, the detection wheel (50) is rotated, and the value of the torsion stress is detected by a torsion sensor (51). The rotation speed of the servo motor (26) of the torsion correction machine is controlled by a PLC.

10. A method for integrally forming a multi-layer steel cord, using the multi-layer steel cord integrally forming production equipment as described in any one of claims 1 to 9, characterized in that The steps include: There are two pay-off positions on the unpowered pay-off machine (1), which can hold two WS50 I-shaped wheels A (57); the pay-off guide wheel enters the DOS single-wheel ringless double twisting machine (2) from the center hole of the torsion shaft (6) at the right end; The first cradle of the DOS single-wheel ringless double twisting machine (2) is equipped with a WS50 I-shaped wheel A (57), which can wind 50 kg of steel wire. The I-shaped wheel A (57) can wind 50 kg of steel wire according to the production specifications. The core strand can be wound with a single wire, double wire or triple wire, i.e., multiple wires can be wound at the same time; the core strand is released from the middle I-shaped wheel A (57) of the DOS single-wheel ringless double twisting machine (2), and the wire release tension is controlled by a brake belt; it passes through the left reversing wheel of the torsion shaft (6) and passes through the lower wing; it passes through the left steering wheel of the torsion shaft (9) and passes through the left center hole of the torsion shaft (9); and then it is wound around the two winding wheels of the tension stabilizing device (13); after winding 10 turns on the winding wheel, it passes around the tension sensor guide wheel (12); The DFM multi-wheel double-ring double-twist machine (3) enters the DFM multi-wheel double-ring double-twist machine (3) from the center hole of the right torsion shaft of the DFM multi-wheel double-ring double-twist machine (3); the core strands bypass the torsion shaft (15), pass through the right steering wheel from the upper flywheel ring (18) to the torsion shaft (20), and enter the second cradle (16) on the right steering wheel (19); and enter the rope maker together with the steel wires released from the multiple I-shaped wheels C (17) on the second cradle (16), and are twisted into ropes in the rope maker; the core strands are in the middle, and the steel wires released from the second cradle (16) on the multi-wheel double-ring double-twist machine (3) are wound on the outer layer; the steel cord after being roped bypasses the left side of the torsion shaft (15) The steering wheel passes through the flywheel ring below to the torsion shaft (20), bypasses the steering wheel on the left side of the torsion shaft (20), and passes through the center of the torsion shaft (20); enters the guide wheel (23), passes through the guide wheel (23), enters the torsion correction machine (4); 8-shaped winding is performed on the two multi-grooved wheels above the virtual twister shaft (27) and passes through the left end of the virtual twister shaft (27); bypasses the double guide wheels (60), passes through the straightener (61), and enters the traction wheel (29) from the lower guide wheel. The two traction wheels (29) adopt an 8-shaped winding method, pass through the traction wheel (29), pass through the guide wheel (60), and enter the wire take-up machine (5); After the cord passes the traction wheel, it is in the low tension zone. The cord tension is determined by the spring (62) on the swing rod guide wheel. The spring is adjusted to change the take-up tension. The cord passes around the guide wheel (49) and is hung on the torsion detection wheel (50). After the torque sensor (51) detects the torque, the PLC controls the servo motor (26) to adjust the speed to adjust the cord torsional stress to meet the production requirements. The cord passes around the two guide wheels of the tension swing rod and goes down into the cable arrangement device. The meter wheel (53) on the cable arrangement device, then passes around the reverse bow high wheel (54). The reverse bow high wheel (54) is two double-layer guide wheels, and finally passes around the take-up I-shaped wheel D. The take-up motor (56) drives the take-up I-shaped wheel D to reel through the synchronous pulley, and the speed of the take-up motor is controlled by the swing amplitude of the tension swing rod.

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