Strand stripping machine for steel cords

Abstract

The invention discloses a strand stripping machine for a steel cord, and belongs to the technical field of steel cord production. Comprising a pay-off assembly, an untwisting assembly, a traction assembly, a driving assembly and a take-up assembly. The paying-off assembly is used for paying off stranded steel wires. The untwisting assembly comprises a supporting piece and an untwisting wheel, the supporting piece is arranged on the pay-off side of the pay-off assembly, the untwisting wheel is rotationally arranged on the supporting piece, the untwisting assembly is used for guiding the stranded steel wires to be untwisted to form first shunt-wound steel wires and second shunt-wound steel wires, and the untwisting wheel is used for guiding the first shunt-wound steel wires. The traction assembly is used for pulling the second shunt-wound steel wire. The driving assembly is used for driving the untwisting wheel to rotate in the circumferential direction of the second shunt-wound steel wire. Under the action of the driving assembly, the untwisting wheel guides the stranded steel wires to be untwisted, and the stranded steel wires are separated into the first shunt-wound steel wires and the second shunt-wound steel wires. And the main take-up piece and the auxiliary take-up piece are used for take-up of the second shunt-wound steel wires in the first shunt-wound steel wires, and untwisting and separation of the stranded steel wires can be efficiently and accurately completed.

Description

Technical Field

[0001] The present application relates to the field of steel cord production, and particularly to a strand wire stripping machine for steel cord. Background Art

[0002] Steel cord is a fine - gauge wire strand or rope made of high - quality high - carbon steel with a brass coating on the surface and for special purposes. It is mainly used as the skeleton material for car tires, light - truck tires, heavy - duty truck tires, engineering vehicle tires, aircraft tires and other rubber products. The radial tire made of steel cord as the reinforcing material has the advantages of long service life, high driving speed, puncture resistance, good elasticity, safety and comfort, fuel saving, etc.

[0003] With the development of the technical level and the improvement of production capacity in the tire industry, the market has put forward higher requirements for the durability, safety performance and high - speed performance of tires. New requirements have also been put forward for the development and application of steel cord as the tire skeleton material. During the use or driving of heavy - duty tires, the cord undergoes very heavy loads, which cause wear and corrosion to the cord, and wear, tear, etc. will occur on the tire tread, affecting the service life. Therefore, it is necessary to detect the strength of the product after cord damage. For the cord simulation damage detection, usually for the steel cord after being twisted into strands, a section of a certain length is sheared, and after manually stripping the single wires and single strands, the strength loss data is tested. However, the manual stripping efficiency is low, and during the stripping process, it is easy to cause other strands to become loose and the structure to deform. Summary of the Invention

[0004] The purpose of the present application is to provide a strand wire stripping machine for steel cord, which is used to solve the problems in the prior art that the manual stripping efficiency of the cord is low, and during the stripping process, it is easy to cause other strands to become loose and the structure to deform.

[0005] To solve the above - mentioned technical problems, the present application is implemented by the following technical solutions:

[0006] The present application provides a strand wire stripping machine for steel cord, including: a wire feeding assembly for feeding the stranded steel wire;

[0007] A untwisting assembly, including a support member and an untwisting wheel. The support member is arranged on the wire feeding assembly, the untwisting wheel is rotatably arranged on the support member, and the untwisting assembly is used to guide the stranded steel wire to be untwisted to form a first coiled wire and a second coiled wire, and the untwisting wheel is used to guide the first coiled wire;

[0008] A traction assembly for traction of the second coiled wire;

[0009] A driving assembly for driving the untwisting wheel to rotate circumferentially around the second coiled wire;

[0010] The wire-receiving assembly comprises a main wire-receiving component for reeling in the second-part steel wire and an auxiliary wire-receiving component for reeling in the first-part steel wire.

[0011] During operation, the ends of the stranded steel wire are first manually untwisted into the first and second sub-winding steel wires. The first sub-winding steel wire is guided by the untwisting wheel and enters the auxiliary wire-taking component for winding. The second sub-winding steel wire is pulled by the pulling component and enters the main wire-taking component for winding. At the same time, the untwisting wheel is driven by the driving component to rotate around the second sub-winding steel wire in the twisting direction of the stranded steel wire, so as to separate the first sub-winding steel wire from the second sub-winding steel wire.

[0012] Under the action of the driving assembly, the untwisting wheel of this solution guides the stranded steel wire to untwist and separate the stranded steel wire into the first sub-roll steel wire and the second sub-roll steel wire. The main take-up member and the auxiliary take-up member respectively take up the first sub-roll steel wire and the second sub-roll steel wire, which can efficiently and accurately complete the untwisting and separation of the stranded steel wire. At the same time, it realizes the automatic and continuous stripping of the stranded steel wire, reduces the consumption of manpower and material resources, and reduces the production cost. This solution has a compact structure, is easy to operate, has high efficiency, and stable quality, and is suitable for the untwisting and separation of stranded steel wires in the production process of steel cords.

[0013] Optionally, the pay-off assembly includes: a pay-off I-wheel, one end of the pay-off I-wheel axially side is rotatably connected to a base plate, and both sides of the base plate are respectively rotatably provided with a coaxially arranged first flywheel disc and a second flywheel disc, and the first flywheel disc has a hole at the axis center.

[0014] The pay-off spool is used to wind and store the stranded wire. The bottom plate is the supporting structure of the pay-off spool, ensuring the stability of the pay-off spool during the pay-off process. During operation, the stranded wire is pulled out from the pay-off spool and enters the untwisting assembly through the hole of the first flywheel.

[0015] Optionally, the supporting member includes: a first hollow shaft coaxially arranged on the side of the first flywheel disc away from the second flywheel disc, the first hollow shaft is hollow inside, the first hollow shaft has a first wire passing groove, the first wire passing groove is provided with a symmetrically arranged first bracket and a second bracket, a bearing sleeve is arranged between the first bracket and the second bracket, and the untwisting wheel is arranged on the bearing sleeve.

[0016] In the scheme, the stranded steel wire enters the first hollow shaft from the pay-off assembly and is untwisted into a first sub-winding steel wire and a second sub-winding steel wire. The untwisted first sub-winding steel wire leaves the first hollow shaft through the first wire passing groove under the guidance of the untwisting wheel and enters the subsequent wire taking-up link.

[0017] Optionally, a second hollow shaft is coaxially arranged on the side of the second flywheel disc facing away from the first flywheel disc. A second wire groove is provided on the second hollow shaft, and a first guide wheel is rotatably arranged in the second hollow shaft.

[0018] After the first split coiled wire is guided away by the untwisting wheel, it bypasses the side edges of the first flywheel disc and the second flywheel disc, and then enters the second hollow shaft through the second wire groove. Inside the second hollow shaft, the first split coiled wire is guided by the first guide wheel, adjusts its direction, and then leaves the second hollow shaft. It enters the auxiliary take-up member for winding.

[0019] Optionally, the driving assembly includes: a first driving shaft coaxially arranged on the first hollow shaft, a second driving shaft coaxially arranged on the second hollow shaft, and a first driving motor for driving the first driving shaft and the second driving shaft to rotate synchronously.

[0020] Driven by the first driving motor, the first driving shaft and the second driving shaft rotate synchronously. Since the first driving shaft and the second driving shaft are coaxially arranged with the first hollow shaft and the second hollow shaft respectively, the first hollow shaft and the second hollow shaft also rotate synchronously. The first flywheel disc and the second flywheel disc are rotatably connected to the bottom plate and are driven by the rotation of the hollow shaft, so they also rotate synchronously. The untwisting wheel is located on the first hollow shaft and rotates with the rotation of the first hollow shaft. During the untwisting process, the untwisting wheel rotates to drive the first split coiled wire to rotate circumferentially around the second split coiled wire, realizing the untwisting of the stranded wire.

[0021] Optionally, a wire passing wheel is further included between the first guide wheel and the auxiliary take-up member, and the wire passing wheel is used to guide the first split coiled wire into the auxiliary take-up member.

[0022] Optionally, a plurality of second guide wheels are provided on the bottom plate.

[0023] The second guide wheels are used to guide the stranded wire released from the wire pay-off spool, ensuring that the stranded wire can axially enter the first hollow shaft.

[0024] When the wire pay-off spool starts to pay off wire, the stranded wire is guided by the second guide wheels and advances axially along the set path. This ensures that the stranded wire can accurately and stably axially enter the first hollow shaft, improving the accuracy and reliability of wire pay-off.

[0025] Optionally, the traction assembly includes: a motor bracket, a second driving motor is provided on the motor bracket, the output end of the second driving motor is connected to a traction shaft through a coupling, a bearing seat is provided on the traction shaft, and a traction wheel is sleeved on one end of the traction shaft.

[0026] Optionally, the output end of the second drive motor is connected to the traction shaft through a coupling. Two bearings are sleeved on the traction shaft, a bushing is arranged between the two bearings, the bearings are arranged in a bearing housing, the bearing housing is connected to the motor bracket, the traction wheel is sleeved on the traction shaft, locking caps and gland covers are respectively arranged on both sides of the bearing housing, and an expansion connection sleeve is arranged between the traction shaft and the traction wheel.

[0027] When the second drive motor starts, its output end transmits the rotational power to the traction shaft through the coupling. The traction shaft drives the traction wheel to rotate. The second sub-rolled steel wire is wound around the traction wheel, and the rotational power is transmitted to the second sub-rolled steel wire through friction, thereby realizing the traction of the second sub-rolled steel wire. In this solution, the locking cap and the gland cover act on the bearing housing together to ensure that the traction shaft does not loosen or displace during operation. The expansion connection sleeve tightly connects the traction shaft and the traction wheel, and increases the connection strength between the two through its expansion characteristics.

[0028] Optionally, it further includes a tension detector and a PLC controller. The tension detector is used to detect the tension of the second sub-rolled steel wire located between the traction wheel and the wire pay-off assembly, and the PLC controller is signal-connected to the tension detector and the second drive motor.

[0029] Due to the fluctuation of the twist pitch of the stranded steel wire itself, the untwisting point will move back and forth left and right during the peeling process. When the left and right positions of the untwisting point exceed the limit range, the untwisting and peeling will fail. It is known that during the production process, the steel wire tension of the stranded steel wire, the steel wire tension of the first sub-rolled steel wire, and the steel wire tension of the second sub-rolled steel wire are in a balanced state, that is, (F2 + F1×cosα) = F; where,

[0030] F is the steel wire tension of the stranded steel wire;

[0031] F1 is the steel wire tension of the first sub-rolled steel wire;

[0032] F2 is the steel wire tension of the second sub-rolled steel wire;

[0033] α is the acute angle of the included angle formed by the first sub-rolled steel wire and the second sub-rolled steel wire.

[0034] Among them, the tension of the stranded steel wire is set during the initial wire pay-off, and the tension of the steel wire of the first sub-rolled steel wire is set by the auxiliary take-up part. With the fluctuation of the twist pitch, the included angle α between the second sub-rolled steel wire and the first sub-rolled steel wire will also change accordingly. That is, the untwisting point deviates. In this solution, the PLC controller controls the rotation speed of the second drive motor, thereby adjusting the steel wire tension of the second sub-rolled steel wire, realizing the control of the position of the untwisting point, and avoiding the failure of untwisting and peeling caused by the untwisting point exceeding the limit range.

[0035] Specific implementation steps:

[0036] Place the untwisting point at the middle position of the reciprocating motion, use the tension detector to obtain the tension comparison value F3 of the second rewound steel wire at this time, and transmit and store it in the PLC controller.

[0037] Operate the second drive motor, and obtain the actual tension value F2 of the second rewound steel wire in real time through the tension detector.

[0038] Transmit the actual value F2 to the PLC controller and compare it with the comparison value F3.

[0039] When the actual value F2 is greater than the comparison value F3, the PLC controller sends a signal to the second drive motor to make it rotate at a reduced speed, reducing the tension of the second rewound steel wire.

[0040] When the actual value F2 is less than the comparison value F3, the PLC controller sends a signal to the second drive motor to make it rotate at an increased speed, increasing the tension of the second rewound steel wire.

[0041] Through the cooperation of the PLC controller, the second drive motor and the tension detector, dynamically adjust the tension of the second rewound steel wire, maintain the stability of the untwisting point, avoid the failure of untwisting and peeling, and improve production efficiency and product quality.

[0042] Compared with the prior art, the beneficial effects achieved by this application are as follows: When the present invention is used, first manually untwist the end of the stranded steel wire into the first rewound steel wire and the second rewound steel wire. Among them, after being guided by the untwisting wheel, the first rewound steel wire enters the auxiliary take-up member for take-up. The second rewound steel wire is then guided by the traction assembly and enters the main take-up member for take-up. At the same time, the drive assembly drives the untwisting wheel to rotate circumferentially around the second rewound steel wire in the twisting direction of the stranded steel wire, promoting the separation of the first rewound steel wire and the second rewound steel wire.

[0043] In this solution, under the action of the drive assembly, the untwisting wheel guides the untwisting of the stranded steel wire, separating the stranded steel wire into the first rewound steel wire and the second rewound steel wire. And the main take-up member and the auxiliary take-up member respectively take up the first rewound steel wire and the second rewound steel wire, which can efficiently and accurately complete the untwisting and separation of the stranded steel wire. At the same time, the automatic continuous peeling of the stranded steel wire is realized, reducing the consumption of manpower and material resources and lowering the production cost. This solution has a compact structure, is easy to operate, has high efficiency and stable quality, and is suitable for the untwisting and separation of stranded steel wires in the production process of steel cord. Description of the Drawings

[0044] To more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 is a schematic diagram of the overall structure of some embodiments provided by the present application;

[0046] Figure 2 is a connection schematic diagram of the wire pay-off assembly and the untwisting assembly of some embodiments provided by the present application;

[0047] Figure 3 is a schematic diagram of the structure of the wire pay-off assembly of some embodiments provided by the present application;

[0048] Figure 4 is a schematic diagram of the structure of the untwisting assembly of some embodiments provided by the present application;

[0049] Figure 5 is a schematic diagram of the structure of the traction assembly of some embodiments provided by the present application;

[0050] Figure 6 is a schematic diagram of the structure of the tension detector of some embodiments provided by the present application;

[0051] Figure 7 is a force diagram of the stranded wire, the first split coil wire, and the second split coil wire of some embodiments provided by the present application.

[0052] Explanation of reference numerals: 1 - wire pay-off assembly; 2 - untwisting assembly; 3 - traction assembly; 4 - drive assembly; 5 - stranded wire; 7 - wire guiding wheel; 8 - tension detector; 9 - PLC controller; 11 - wire pay-off spool; 12 - bottom plate; 13 - first flywheel disc; 14 - second flywheel disc; 15 - second hollow shaft; 16 - first guiding wheel; 17 - second guiding wheel; 21 - support member; 22 - untwisting wheel; 31 - motor bracket; 32 - second drive motor; 33 - traction wheel; 41 - first drive shaft; 42 - second drive shaft; 43 - first drive motor; 51 - first split coil wire; 52 - second split coil wire; 61 - main take-up member; 62 - auxiliary take-up member; 151 - second wire groove; 211 - first hollow shaft; 212 - first bracket; 213 - second bracket; 214 - bearing sleeve; 216 - first wire groove; 311 - coupling; 312 - traction shaft; 313 - bearing; 314 - bushing; 315 - bearing seat; 316 - locking cap; 317 - gland; 318 - expansion connection sleeve. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present disclosure / the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use.

[0054] Embodiment 1

[0055] This embodiment introduces a strand stripping machine device for steel cord. Referring to Figure 1 and Figure 2 , the strand stripping machine for steel cord in this embodiment includes: a wire feeding assembly 1, a untwisting assembly 2, a traction assembly 3, a driving assembly 4, and a wire winding assembly. Among them, the wire feeding assembly 1 is used for feeding the stranded steel wire 5. The untwisting assembly 2 includes a support member 21 and an untwisting wheel 22. The support member 21 is arranged on the wire feeding side of the wire feeding assembly 1, and the untwisting wheel 22 is rotatably arranged on the support member 21. The untwisting assembly 2 is used for guiding the stranded steel wire 5 to untwist to form a first coiled wire 51 and a second coiled wire 52, and the untwisting wheel 22 is used for guiding the first coiled wire 51. The traction assembly 3 is used for traction the second coiled wire 52. The driving assembly 4 is used for driving the untwisting wheel 22 to rotate circumferentially around the second coiled wire 52. The wire winding assembly includes a main wire winding member 61 for winding the second coiled wire 52 and a secondary wire winding member 62 for winding the first coiled wire 51. In this embodiment, the main wire winding member 61 and the secondary wire winding member 62 are LS900 vertical wire winding machines.

[0056] During operation, first, manually untwist the end of the stranded steel wire 5 into a first coiled wire 51 and a second coiled wire 52. Among them, after being guided by the untwisting wheel 22, the first coiled wire 51 enters the secondary wire winding member 62 for winding. The second coiled wire 52 is tractioned by the traction assembly 3 and then enters the main wire winding member 61 for winding. At the same time, the driving assembly 4 drives the untwisting wheel 22 to rotate circumferentially around the second coiled wire 52 in the twisting direction of the stranded steel wire 5, promoting the separation of the first coiled wire 51 and the second coiled wire 52.

[0057] In this embodiment, under the action of the driving assembly 4, the untwisting wheel 22 guides the stranded steel wire 5 to untwist, separating the stranded steel wire 5 into a first coiled wire 51 and a second coiled wire 52. And the main wire winding member 61 and the secondary wire winding member 62 wind the first coiled wire 51 and the second coiled wire 52 respectively, which can efficiently and accurately complete the untwisting and separation of the stranded steel wire 5. At the same time, it realizes the automatic continuous and uninterrupted stripping of the stranded steel wire 5, reduces the consumption of manpower and material resources, and reduces the production cost. This solution has a compact structure, simple operation, high efficiency, and stable quality, and is suitable for the untwisting and separation work of the stranded steel wire 5 in the production process of steel cord.

[0058] Embodiment 2:

[0059] Based on the same inventive concept as in Example 1, refer to Figure 2 and Figure 3 In this embodiment, the pay-off assembly 1 includes: a pay-off I-shaped wheel 11, one end of the axial side of the pay-off I-shaped wheel 11 is rotatably connected to a bottom plate 12, and the two sides of the bottom plate 12 are respectively rotatably provided with a first flywheel disc 13 and a second flywheel disc 14 coaxially arranged, and the first flywheel disc 13 has a hole at the axis center. Among them, the pay-off I-shaped wheel 11 is used to wind and store the stranded steel wire 5, and the bottom plate 12 is the supporting structure of the pay-off I-shaped wheel 11, which ensures the stability of the pay-off I-shaped wheel 11 during the pay-off process. During the working process, the stranded steel wire 5 is pulled out from the pay-off I-shaped wheel 11 and enters the untwisting assembly 2 through the hole of the first flywheel disc 13.

[0060] For further reference, Figure 4 In this embodiment, the support member 21 includes: a first hollow shaft 211 coaxially arranged on the side of the first flywheel disc 13 away from the second flywheel disc. The first hollow shaft 211 is hollow inside and has a first wire groove 216 thereon. The first wire groove 216 is provided with a symmetrically arranged first bracket 212 and a second bracket 213, a bearing sleeve 214 is provided between the first bracket 212 and the second bracket 213, and the untwisting wheel 22 is provided on the bearing sleeve 214. When in use, the stranded steel wire 5 enters the first hollow shaft 211 from the pay-off assembly 1 and is untwisted into a first sub-winding steel wire 51 and a second sub-winding steel wire 52. The untwisted first sub-winding steel wire 51 leaves the first hollow shaft 211 through the first wire groove 216 under the guidance of the untwisting wheel 22, and enters the subsequent wire-receiving link.

[0061] Furthermore, a second hollow shaft 15 is coaxially arranged on a side of the second flywheel disc 14 facing away from the first flywheel disc 13 , a second wire passing groove 151 is arranged on the second hollow shaft 15 , and a first guide wheel 16 is rotatably arranged inside the second hollow shaft 15 .

[0062] After the first winding steel wire 51 is guided out by the untwisting wheel 22, it passes around the first flywheel disc 13 and the second flywheel disc 14, and enters the second hollow shaft 15 through the second wire groove 151. In the second hollow shaft 15, the first winding steel wire 51 is guided by the first guide wheel 16, and after adjusting the direction, it leaves the second hollow shaft 15 and enters the auxiliary wire take-up member 62 for winding.

[0063] Further, the driving assembly 4 includes: a first driving shaft 41 coaxially arranged on the first hollow shaft 211, a second driving shaft 42 coaxially arranged on the second hollow shaft 15, and a first driving motor 43 for driving the first driving shaft 41 and the second driving shaft 42 to rotate synchronously. In this embodiment, the first driving motor 43 transmits power to the first driving shaft 41 and the second driving shaft 42 through a belt.

[0064] During operation, driven by the first driving motor 43, the first driving shaft 41 and the second driving shaft 42 rotate synchronously. Since the first driving shaft 41 and the second driving shaft 42 are coaxially arranged with the first hollow shaft 211 and the second hollow shaft 15 respectively, the first hollow shaft 211 and the second hollow shaft 15 also rotate synchronously. The first flywheel disc 13 and the second flywheel disc 14 are rotatably connected to the bottom plate 12 and are driven by the rotation of the hollow shaft, so they also rotate synchronously. The untwisting wheel 22 is located on the first hollow shaft 211 and rotates with the rotation of the first hollow shaft 211. During the untwisting process, the untwisting wheel 22 rotates to drive the first coiling wire 51 to rotate circumferentially around the second coiling wire 52, realizing the untwisting of the stranded wire 5.

[0065] This embodiment further includes a wire passing wheel 7 arranged between the first guiding wheel 16 and the auxiliary wire take-up member 62. The wire passing wheel 7 is used to guide the first coiling wire 51 into the auxiliary wire take-up member 62.

[0066] In this embodiment, a plurality of second guiding wheels 17 are provided on the bottom plate 12.

[0067] The second guiding wheel 17 is used to guide the stranded wire 5 released from the wire pay-off spool 11, ensuring that the stranded wire 5 can axially enter the first hollow shaft 211.

[0068] When the wire pay-off spool 11 starts to pay off wire, the stranded wire 5 axially advances along a set path under the guidance of the second guiding wheel 17. It is ensured that the stranded wire 5 can accurately and stably axially enter the first hollow shaft 211, improving the accuracy and reliability of wire pay-off.

[0069] Embodiment Three:

[0070] Based on the same inventive concept as Embodiment One, referring to Figure 5 , in this embodiment, the traction assembly 3 includes: a motor bracket 31, a second driving motor 32 is provided on the motor bracket 31, the output end of the second driving motor 32 is connected to the traction shaft 312 through a coupling 311, two bearings 313 are sleeved on the traction shaft 312, a shaft sleeve 314 is provided between the two bearings 313, the bearings 313 are arranged inside a bearing seat 315, the bearing seat 315 is connected to the motor bracket 31, a traction wheel 33 is sleeved on the traction shaft 312, a locking cap 316 and a gland 317 are respectively provided on both sides of the bearing seat 315, and an expansion connection sleeve 318 is provided between the traction shaft 312 and the traction wheel 33.

[0071] When the second driving motor 32 starts, the output end thereof transmits the rotational power to the traction shaft 312 through the coupling 311. The traction shaft 312 drives the traction wheel 33 to rotate. The second sub-rolling steel wire 52 is wound around the traction wheel 33, and the rotational power is transmitted to the second sub-rolling steel wire 52 through friction, thereby realizing the traction of the second sub-rolling steel wire 52. In this solution, the locking cap 316 and the gland 317 act together on the bearing seat 315 to ensure that the traction shaft 312 will not loosen or displace during operation. The expansion connecting sleeve 318 tightly connects the traction shaft 312 and the traction wheel 33 together, and increases the connection strength between the two through its expansion characteristics.

[0072] Reference Figure 6 With Figure 7 , due to the fluctuation of the twist pitch of the stranded steel wire 5 itself, the untwisting point will move back and forth left and right during the peeling process. When the left and right positions of the untwisting point exceed the limit range, the untwisting and peeling will fail. To avoid the above situation, this embodiment further includes a tension detector 8 and a PLC controller 9. Among them, the tension detector 8 is used to detect the tension of the second sub-rolling steel wire 52 located between the traction wheel 33 and the wire pay-off assembly 1, and the model of the tension detector 8 is TR-4000. The model of the PLC controller 9 is Siemens PLC S7-200, and the PLC controller 9 is signal-connected to the tension detector 8 and the second driving motor 32.

[0073] It is known that during the production process, the wire tension of the stranded steel wire 5, the wire tension of the first sub-rolling steel wire 51, and the wire tension of the second sub-rolling steel wire 52 are in a balanced state, that is, (F2 + F1×cosα) = F; where,

[0074] F is the wire tension of the stranded steel wire 5;

[0075] F1 is the wire tension of the first sub-rolling steel wire 51;

[0076] F2 is the wire tension of the second sub-rolling steel wire 52;

[0077] α is the acute angle of the included angle formed by the first sub-rolling steel wire 51 and the second sub-rolling steel wire 52.

[0078] Among them, the tension of the stranded steel wire 5 is set at the initial wire pay-off, and the wire tension of the first sub-rolling steel wire 51 is set by the auxiliary take-up member 62. With the fluctuation of the twist pitch, the included angle α between the second sub-rolling steel wire 52 and the first sub-rolling steel wire 51 will also change accordingly. That is, the untwisting point deviates. This solution controls the rotation speed of the second driving motor 32 through the PLC controller 9, thereby adjusting the wire tension of the second sub-rolling steel wire 52 and realizing the control of the position of the untwisting point to avoid the untwisting and peeling failure caused by the untwisting point exceeding the limit range.

[0079] Specific implementation steps:

[0080] The untwisting point is placed at the middle position of the reciprocating motion, and the tension comparison value F3 of the second sub-rolled steel wire 52 is obtained by the tension detector 8 at this time and transmitted and stored in the PLC controller 9.

[0081] The second driving motor 32 is operated, and the actual tension value F2 of the second sub-rolled steel wire 52 is obtained in real time through the tension detector 8.

[0082] The actual value F2 is transmitted to the PLC controller 9 and compared with the comparison value F3.

[0083] When the actual value F2 is greater than the comparison value F3, the PLC controller 9 sends a signal to the second driving motor 32 to make it rotate at a reduced speed and reduce the tension of the second sub-rolled steel wire 52.

[0084] When the actual value F2 is less than the comparison value F3, the PLC controller 9 sends a signal to the second driving motor 32 to make it rotate at an increased speed and increase the tension of the second sub-rolled steel wire 52.

[0085] Through the cooperation of the PLC controller 9, the second driving motor 32 and the tension detector 8, the tension of the second sub-rolled steel wire 52 is dynamically adjusted to keep the untwisting point stable, avoid the failure of untwisting and peeling, and improve the production efficiency and product quality.

[0086] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present disclosure / the present application, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present disclosure / the present application.

Claims

1. A strand stripping machine for steel cord, characterized in that: include: A wire-paying assembly (1) for paying out the stranded steel wire (5); An untwisting assembly (2) comprising a support member (21) and an untwisting wheel (22), wherein the support member (21) is arranged on the pay-off assembly (1), and the untwisting wheel (22) is rotatably arranged on the support member (21), the untwisting assembly (2) is used to guide the stranded steel wire (5) to be untwisted to form a first sub-roll steel wire (51) and a second sub-roll steel wire (52), and the untwisting wheel (22) is used to guide the first sub-roll steel wire (51); A traction assembly (3) used for traction of the second coiled steel wire (52); A driving assembly (4) for driving the untwisting wheel (22) to rotate circumferentially around the second winding steel wire (52); The wire take-up assembly comprises a main wire take-up member (61) for taking up the second winding steel wire (52) and an auxiliary wire take-up member (62) for taking up the first winding steel wire (51).

2. The steel cord stripping machine according to claim 1, characterized in that: The pay-off assembly (1) comprises: a pay-off spool (11); one end of the pay-off spool (11) on the axial side is rotatably connected to a base plate (12); a first flywheel (13) and a second flywheel (14) coaxially arranged are rotatably arranged on both sides of the base plate (12); and the first flywheel (13) has a hole at the axis center.

3. The steel cord stripping machine according to claim 2, characterized in that: The support member (21) comprises: a first hollow shaft (211) coaxially arranged on a side of the first flywheel disc (13) facing away from the second flywheel disc (14); the first hollow shaft (211) is hollow inside; the first hollow shaft (211) has a first wire passing groove (216); a first bracket (212) and a second bracket (213) are symmetrically arranged in the first wire passing groove (216); a bearing sleeve (214) is arranged between the first bracket (212) and the second bracket (213); and the untwisting wheel (22) is arranged on the bearing sleeve (214).

4. The steel cord stripping machine according to claim 3, characterized in that: A second hollow shaft (15) is coaxially arranged on a side of the second flywheel disc (14) facing away from the first flywheel disc (13); a second wire passing groove (151) is arranged on the second hollow shaft (15); and a first guide wheel (16) is rotatably arranged inside the second hollow shaft (15).

5. The steel cord stripping machine according to claim 4, characterized in that: The driving assembly (4) comprises: a first driving shaft (41) coaxially arranged on the first hollow shaft (211), a second driving shaft (42) coaxially arranged on the second hollow shaft (15), and a first driving motor (43) for driving the first driving shaft (41) and the second driving shaft (42) to rotate synchronously.

6. The steel cord stripping machine according to claim 3, characterized in that: It also includes a wire passing wheel (7) arranged between the first guide wheel (16) and the auxiliary wire taking-up member (62), wherein the wire passing wheel (7) is used to guide the first split-winding steel wire (51) into the auxiliary wire taking-up member (62).

7. The steel cord stripping machine according to claim 3, characterized in that: A plurality of second guide wheels (17) are provided on the bottom plate (12).

8. The steel cord stripping machine according to claim 1, characterized in that: The traction assembly (3) comprises: a motor bracket (31), a second drive motor (32) being arranged on the motor bracket (31), and a traction wheel (33) being coaxially arranged at the output end of the second drive motor (32).

9. The steel cord stripping machine according to claim 8, characterized in that: It also includes a tension detector (8) and a PLC controller (9), wherein the tension detector (8) is used to detect the tension of the second coiled steel wire (52) located between the traction wheel (33) and the pay-off assembly (1), and the PLC controller (9) is signal-connected to the tension detector (8) and the second drive motor (32).

10. The steel cord stripping machine according to claim 8, characterized in that: The output end of the second drive motor (32) is connected to the traction shaft (312) via a coupling (311); two bearings (313) are sleeved on the traction shaft (312); a shaft sleeve (314) is provided between the two bearings (313); a bearing seat (315) is provided on the bearing (313); the bearing seat (315) is connected to the motor bracket (31); the traction wheel (33) is sleeved on the traction shaft (312); locking caps (316) and pressure covers (317) are provided on both sides of the bearing seat (315); and an expansion connection sleeve (318) is provided between the traction shaft (312) and the traction wheel (33).

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