Take-up tension control device

Abstract

The utility model relates to the technical field of steel cord stranding production, in particular to a take-up tension control device which comprises a take-up spool, the take-up spool is driven by a driven disc, a driving disc is arranged on one side of the driven disc in a transmission mode, and a permanent magnet clutch is arranged between the driven disc and the driving disc. The permanent magnet clutch comprises a rotor shaft concentric with the driven disc, the rotor shaft is sleeved with a rotor ring and a magnetic ring, the magnetic ring is fixedly connected with a first transmission wheel, the first transmission wheel is driven by the driving disc and drives the magnetic ring to rotate around the rotor shaft and the rotor ring, the inner ring of the rotor ring is fixedly connected with the rotor shaft, and the outer ring of the rotor ring is fixedly connected with the driven disc. A gap exists between the outer ring of the rotor ring and the magnetic ring. The take-up tension is constant, high temperature or abrasion is avoided, sliding friction is avoided, and the service life is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord stranding production, in particular to a wire take-up tension control device. Background Art

[0002] At present, the inner winding device of the finished DTS stranding machine adopts a mechanical tension control method. It uses traditional friction elements and relies on the friction resistance torque generated between the elements to adjust the tension. Generally, the friction tension is adjusted by the pressing force. This tension control method that generates resistance through friction has low control accuracy and poor stability. In addition, the friction plate is prone to high temperature and friction powder during long-term friction operation. As the friction plate gradually wears out during the production process, the constant tension is further affected, which can easily lead to uneven force on the steel wire or strand, a decrease in the actual load-bearing capacity, and affect product quality.

[0003] Therefore, there is an urgent need for a take-up tension control device that does not generate friction material powder and has constant tension. Summary of the Invention

[0004] The utility model solves the problems that the existing mechanical tension control device is prone to generate friction material powder and unstable tension, and provides a take-up tension control device with constant take-up tension, no high temperature or wear, no sliding friction, and longer service life.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A wire-taking tension control device comprises a wire-taking spool, which is driven by a driven disk. A driving disk is arranged on one side of the driven disk for transmission, and a permanent magnet clutch is arranged between the driven disk and the driving disk. The driving disk adjusts the driven disk through the permanent magnet clutch, thereby controlling the rotation speed of the wire-taking spool.

[0007] The permanent magnet clutch includes a rotor shaft concentrically arranged with a driven disk. A rotor ring and a magnetic ring are disposed externally on the rotor shaft. The magnetic ring is fixedly connected to a first transmission wheel. Driven by the driving disk, the first transmission wheel drives the magnetic ring to rotate about the rotor shaft and rotor ring. The inner ring of the rotor ring is fixedly connected to the rotor shaft, with a gap between the outer ring of the rotor ring and the magnetic ring. The magnetic ring drives the rotor ring and rotor shaft to rotate through magnetic force transmission.

[0008] Furthermore, the rotor ring is arranged in the middle of the rotor shaft, and the magnetic ring is semi-enclosed and arranged on the outer ring and bottom of the rotor ring. The magnetic ring is made of high magnetic material, and the rotor ring is made of industrial pure iron.

[0009] Furthermore, an end cover is fixedly installed on the top of the magnetic ring, a first bearing is arranged between the magnetic ring and the rotor shaft, and a second bearing is arranged between the end cover and the rotor shaft. The first bearing and the second bearing are both deep groove ball bearings.

[0010] Furthermore, the first transmission wheel is arranged at the bottom of the magnetic ring, is in a convex shape, and is connected to the driving disk via a belt transmission. The driving disk transmits torque to the magnetic ring through the first transmission wheel.

[0011] Furthermore, a coaxial second transmission wheel is fixedly provided at the bottom of the take-up spool, and the second transmission wheel is connected to the driven disc via a belt transmission. The driven disc transmits torque to the take-up spool via the second transmission wheel.

[0012] Furthermore, the rotor ring is in a "convex" shape, and a protrusion at one end of the rotor ring matches the magnetic ring, and a protrusion at the other end of the rotor ring matches the end cover.

[0013] Through the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model is provided with an active disk, a permanent magnet clutch and a driven disk. The magnetic ring outside the permanent magnet clutch is driven by the active disk and rotates synchronously with the active disk. The rotor ring inside the permanent magnet clutch drives the driven disk, thereby driving the take-up spool to rotate synchronously. Since the torque is transmitted between the magnetic ring and the rotor ring by magnetic force, no contact is generated throughout the process, no mechanical friction occurs, and no loss is generated, thereby extending the service life of the device, making the take-up tension more constant, and the product quality more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the permanent magnet clutch of the utility model;

[0016] Figure 2 It is an assembly diagram of the utility model;

[0017] The numbers in the accompanying drawings are: 1 is a permanent magnet clutch, 2 is a take-up spool, 3 is a driven disc, 4 is a driving disc, 5 is a second transmission wheel, 11 is a magnetic ring, 12 is a rotor ring, 13 is a rotor shaft, 14 is an end cover, 15 is a first transmission wheel, 16 is a first bearing, and 17 is a second bearing. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 and 2 As shown, this embodiment provides a wire-taking tension control device, including a wire-taking spool 2, which is used to receive and arrange wires. The wire-taking spool 2 is driven by a driven disk 3, and a driving disk 4 is arranged on one side of the driven disk 3. A permanent magnet clutch 1 is arranged between the driven disk 3 and the driving disk 4, and the permanent magnet clutch 1 is used to maintain constant tension.

[0020] The driving disc 4 adjusts the driven disc 3 through the permanent magnet clutch 1, thereby controlling the rotational speed of the take-up spool 2. The permanent magnet clutch 1 includes a rotor shaft 13 arranged concentrically with the driven disc 3. The bottom end of the rotor shaft 13 is fixedly connected to the driven disc 3. The rotor shaft 13 is made of high-quality carbon structural steel and is used to support the internal structure of the permanent magnet clutch 1. The rotor shaft 13 is outer-mounted with a rotor ring 12 and a magnetic ring 11. The rotor ring 12 is made of industrial pure iron, and the magnetic ring 11 is made of high-magnetic material. The rotor ring 12 is magnetized by the magnetic ring 11. During the rotation of the magnetic ring 11, the rotor ring 12 rotates under the action of the magnetic field. Due to the magnetic force control between the two, the magnetic ring 11 and the rotor ring 12 are non-contact throughout the entire process, and no friction loss is generated. The take-up tension control is more effective and the equipment has a longer service life.

[0021] The magnetic ring 11 is fixedly connected to a first transmission wheel 15. This first transmission wheel 15 is driven by the driving disk 4, causing the magnetic ring 11 to rotate about the rotor shaft 13 and the rotor ring 12. Specifically, the first transmission wheel 15 is located at the bottom of the magnetic ring 11 and is connected to the driving disk 4 via a belt drive. The driving disk 4 transmits power to the first transmission wheel 15, which in turn drives the magnetic ring 11 to rotate.

[0022] The inner ring of the rotor ring 12 is fixedly connected to the rotor shaft 13, with a gap between the outer ring of the rotor ring 12 and the magnetic ring 11. Specifically, the rotor ring 12 is positioned in the middle of the rotor shaft 13, while the magnetic ring 11 is semi-enclosed and positioned on the outer ring and bottom of the rotor ring 12. As the take-up spool 2 winds the wire, the spool's winding diameter gradually increases and the take-up tension gradually decreases. The magnetic force between the magnetic ring 11 and the rotor ring 12 is controlled, preventing unstable stranded wire quality caused by tension fluctuations and improving the overall quality and reliability of the product.

[0023] In order to protect the internal structure of the permanent magnet clutch 1, an end cover 14 is fixedly provided on the top of the magnetic ring 11. The permanent magnet clutch is in an inverted "convex" shape as a whole. The end cover 14 is located on the top of the permanent magnet clutch. The maximum diameter of the magnetic ring 11 is equal to the maximum diameter of the end cover 14. The end cover 14 is fixedly connected to the magnetic ring 11 by countersunk screws.

[0024] To ensure the rotational flexibility of the end cover 14 and the magnetic ring 11, a first bearing 16 is provided between the magnetic ring 11 and the rotor shaft 13, and a second bearing 17 is provided between the end cover 14 and the rotor shaft 13. Shaft clamps or hole clamps are provided at both ends of the first and second bearings, and the bearings are deep groove ball bearings.

[0025] In one embodiment, the rotor ring 12 is shaped like a "convex" character. A protrusion on one end of the rotor ring 12 mates with the magnetic ring 11, and a protrusion on the other end of the rotor ring 12 mates with the end cap 14. The magnetic ring 11 is semi-enclosed and positioned on the outer ring and bottom of the rotor ring 12. The first transmission wheel 15 has a convex cross-section. The wider diameter portion of the first transmission wheel 15 is fixed to the bottom of the magnetic ring 11. The first transmission wheel 15 and the magnetic ring 11 are connected via hexagon socket countersunk screws.

[0026] Preferably, a coaxial second transmission wheel 5 is fixedly mounted at the bottom of the take-up spool 2. The second transmission wheel 5 is connected to the driven disc 3 via a belt drive. The rotor shaft 13 drives the driven disc 3 to rotate, and the driven disc 3 transmits power to the second transmission wheel 5, which in turn drives the take-up spool 2 to rotate.

[0027] The working principle of this utility model:

[0028] The active disk 4 drives the first transmission wheel 15 in the permanent magnet clutch 1 to rotate, and the first transmission wheel 15 drives the magnetic ring 11 to rotate around the rotor ring 12 and the rotor shaft 13. The rotor ring 12 is magnetized in the magnetic field and drives the rotor shaft 13 to rotate under the influence of the magnetic force, thereby controlling the torque of the take-up spool 2 through the driven disk 3 and the second transmission wheel 5. Since the torque between the magnetic ring 11 and the rotor ring 12 is transmitted by magnetic force, the permanent magnet clutch 1 plays a good buffering role in the process of torque change of the take-up spool 2, avoiding the problem of unstable stranded wire quality caused by tension fluctuations, and improving the overall quality and reliability of the product.

[0029] The embodiments described above are only preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structure, features and principles described in the patent scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A take-up tension control device, comprising a take-up spool (2), characterized in that: The take-up spool (2) is driven by a driven disc (3), a driving disc (4) is provided on one side of the driven disc (3), and a permanent magnetic clutch (1) is provided between the driven disc (3) and the driving disc (4); The permanent magnet clutch (1) comprises a rotor shaft (13) arranged concentrically with a driven disk (3), a rotor ring (12) and a magnetic ring (11) being arranged on the outer surface of the rotor shaft (13), the magnetic ring (11) being fixedly connected to a first transmission wheel (15), the first transmission wheel (15) being driven by the driving disk (4) and driving the magnetic ring (11) to rotate around the rotor shaft (13) and the rotor ring (12), the inner ring of the rotor ring (12) being fixedly connected to the rotor shaft (13), and a gap being present between the outer ring of the rotor ring (12) and the magnetic ring (11).

2. A take-up tension control device according to claim 1, characterized in that: The rotor ring (12) is arranged in the middle of the rotor shaft (13), and the magnetic ring (11) is in a semi-enclosed shape and is arranged on the outer ring and bottom of the rotor ring (12).

3. A take-up tension control device according to claim 1, characterized in that: An end cover (14) is fixedly arranged on the top of the magnetic ring (11), a first bearing (16) is arranged between the magnetic ring (11) and the rotor shaft (13), and a second bearing (17) is arranged between the end cover (14) and the rotor shaft (13).

4. A take-up tension control device according to claim 1, characterized in that: The first transmission wheel (15) is arranged at the bottom of the magnetic ring (11), the first transmission wheel (15) is in a "convex" shape, and the first transmission wheel (15) is connected to the driving disk (4) via a belt drive.

5. The wire take-up tension control device according to claim 1, characterized in that: A coaxial second transmission wheel (5) is fixedly provided at the bottom of the take-up spool (2), and the second transmission wheel (5) is connected to the driven disc (3) via a belt drive.

6. The wire take-up tension control device according to claim 1, characterized in that: The rotor ring (12) is in a "convex" shape, and one end of the rotor ring (12) is raised to match the magnetic ring (11).

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