Tension control device for pay-off of steel cord core wire

Abstract

The utility model relates to the technical field of steel cord production, in particular to a tension control device for paying off a core wire of a steel cord, which comprises a first wire passing wheel and a second wire passing wheel, a first tension wheel, a second tension wheel and a third tension wheel are arranged on the first side of the mounting plate, and the first tension wheel and the second tension wheel are located on the two sides of the third tension wheel respectively. The tension detecting and adjusting structure composed of the three wire passing wheels is arranged on the core wire paying-off path, the third wire passing wheel can move, when a wire core winds around the three wire passing wheels, pressure is generated on the third wire passing wheel, the pressure sensor detects the pressure borne by the current wire passing wheel, and if the pressure does not conform to a preset value, the tension detecting and adjusting structure is started. If yes, the third wire passing wheel is controlled to move in the direction close to or away from the other two wire passing wheels, so that the tension of the wire core bypassing the three wire passing wheels is changed, and the tension change in the pay-off process is compensated.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, in particular to a tension control device for paying off a steel cord core wire. Background Art

[0002] In the twisting of multi-layer steel cords, the core and surface yarns are typically composed of different numbers and sizes of monofilaments. Consequently, their payoff tension requirements may differ. For example, the core yarn, as the structural framework of the steel cord, may require greater tension to maintain stability and structural integrity, while the surface yarns, which serve more as covering and protection, may require less tension.

[0003] During the twisting process, the core wire is usually located inside and is subjected to more extrusion and friction, so its tension fluctuation may be more significant. The tension change from full wheel to bottom of the wheel is 3kg to 4kg, so the cord is prone to loose twist during the twisting process. Utility Model Content

[0004] Aiming at the technical problems existing in the core wire pay-off tension control in the prior art, the utility model proposes a tension control device for steel cord core wire pay-off, comprising:

[0005] A first thread passing wheel and a second thread passing wheel;

[0006] A mounting plate, wherein a first tension wheel, a second tension wheel, and a third tension wheel are provided on a first side of the mounting plate, wherein the first tension wheel and the second tension wheel are respectively located on both sides of the third tension wheel, and the core wire led out from the spool passes through the first wire passing wheel, the second tension wheel, the third tension wheel, the second tension wheel, and the second wire passing wheel in sequence;

[0007] a driver connected to the second side of the mounting plate;

[0008] The cord direction of the axis of the first tension wheel and the second tension wheel is defined as a first direction, and the driver can drive the rotating shaft of the third tension wheel to move along a second direction, and the second direction is perpendicular to the first direction;

[0009] A pressure sensor is provided outside the rotating shaft of the third tension wheel, and the pressure sensor is used to detect the pressure value applied to the rotating shaft of the third tension wheel.

[0010] Preferably, the first tension wheel, the second tension wheel and the third tension wheel are distributed in a triangle.

[0011] Preferably, the first tension wheel and the second tension wheel are arranged at fixed positions on the mounting plate, and the first tension wheel and the second tension wheel are both rotatably connected to the mounting plate.

[0012] Preferably, a waist-shaped hole is provided on the mounting plate, the rotating shaft of the third tension wheel passes through the waist-shaped hole, and the length direction of the waist-shaped hole is toward the second direction.

[0013] Preferably, the rotating shaft of the third tension wheel is connected to the guide block and the slider in sequence in the direction of the driver, and the driver includes a first cover body, a second cover body and a motor, the first cover body is located on the outside of the guide block, the second cover body is located on the outside of the slider, and the output end of the motor is provided with a screw rod, which is threadedly connected to the slider for driving the slider to move along the second direction.

[0014] Preferably, a guide rod is provided in the second cover body, the guide block is slidably connected to the guide rod, and the guide rod is arranged along the second direction.

[0015] Preferably, the rotating shaft is rotatably connected to the guide block, and the pressure sensor is arranged between the rotating shaft and the guide block.

[0016] Preferably, a controller is further included, which is configured to control the driver to change the position of the rotating shaft based on the pressure value of the rotating shaft detected by the pressure sensor, so that the pressure value of the rotating shaft is within a preset range.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The utility model provides a tension detection and adjustment structure consisting of three passing wheels on the path of the core wire pay-off. The third passing wheel is movable. When the wire core passes around the three passing wheels, pressure is generated on the third passing wheel. The pressure sensor detects the size of the pressure currently applied to the passing wheel. If the pressure does not meet the preset value, the third passing wheel is controlled to move towards or away from the other two passing wheels, so that the tension of the wire core passing around the three passing wheels changes, so as to compensate for the tension change during the pay-off process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, in which:

[0020] Figure 1 This is a schematic structural diagram of a tension control device for paying off a steel cord core wire shown in the present invention;

[0021] Figure 2 This is a schematic diagram of the distribution of three tension wheels on the mounting plate shown in the utility model;

[0022] Figure 3 This is a schematic structural diagram of the waist-shaped hole shown in the present invention;

[0023] Figure 4 It is a structural diagram of the driver shown in the utility model;

[0024] Figure 5 It is a schematic diagram of the tension control principle of the third tension wheel shown in the present invention. DETAILED DESCRIPTION

[0025] In order to better understand the technical content of the present invention, specific embodiments are given and described below with reference to the accompanying drawings.

[0026] Combine Figure 1 As shown, the present invention proposes a tension control device for paying off a steel cord core wire, comprising a first wire passing wheel 101 , a second wire passing wheel 102 , a mounting plate 200 and a driver 20 .

[0027] Combine Figure 2 As shown, a first tension wheel 201, a second tension wheel 202 and a third tension wheel 203 are provided on the first side of the mounting plate 200. The first tension wheel 201 and the second tension wheel 202 are respectively located on both sides of the third tension wheel 203. The core wire led out from the I-shaped wheel 100 passes around the first wire passing wheel 101, the second tension wheel 202, the third tension wheel 203, the second tension wheel 202 and the second wire passing wheel 102 in turn.

[0028] When the core wire released by the I-spool 100 is released from a full wheel state to an empty wheel state, the core wire tension will undergo a large change. Therefore, the change in the wire tension is monitored and controlled by the first wire passing wheel 101, the second tension wheel 202, and the third tension wheel 203.

[0029] Specifically, the driver 20 is connected to the second side of the mounting plate 200, and the cord direction of the axis of the first tension wheel 201 and the second tension wheel 202 is defined as the first direction. The driver 20 can drive the rotating shaft 10 of the third tension wheel 203 to move along the second direction, and the second direction is perpendicular to the first direction.

[0030] Thus, when the driver 20 drives the shaft 10 of the third tension wheel 203 to move in the second direction, the spacing between the third tension wheel 203 and the first tension wheel 201 and the second tension wheel 202 changes, thereby changing the tension of the core wire passing through the three tension wheels.

[0031] Furthermore, a pressure sensor is provided outside the rotating shaft 10 of the third tension wheel 203 , and the pressure sensor is used to detect the pressure value exerted on the rotating shaft 10 of the third tension wheel 203 .

[0032] Specifically, when the core wire passes around the third tension wheel 203, the tension of the core wire will be reflected at the rotating shaft of the third tension wheel 203, and the pressure sensor is used to detect the pressure on the rotating shaft 10 of the third tension wheel 203, so the size of the core wire tension at this time can be obtained.

[0033] Combine Figure 2 As shown, the first tension wheel 201, the second tension wheel 202, and the third tension wheel 203 are arranged in a triangle. As a result, when the wire core passes through the first tension wheel 201, the third tension wheel 203, and the second tension wheel 202, the bending of the wire core exerts pressure on the third tension wheel 203, and this pressure can reflect the current tension.

[0034] The first tension wheel 201 and the second tension wheel 202 are arranged at fixed positions on the mounting plate 200 , and both the first tension wheel 201 and the second tension wheel 202 are rotatably connected to the mounting plate 200 .

[0035] Furthermore, a waist-shaped hole 204 is provided on the mounting plate 200 , and the rotating shaft 10 of the third tension wheel 203 passes through the waist-shaped hole 204 , and the length direction of the waist-shaped hole 204 is toward the second direction.

[0036] Thus, when the driver 20 adjusts the position of the third tension wheel 203, the rotating shaft 10 of the third tension wheel 203 can move in the waist-shaped hole 204. It should be understood that when the third tension wheel 203 is close to the first tension wheel 201 and the second tension wheel 202, the tension of the core wire is greater, and when the third tension wheel 203 is away from the first tension wheel 201 and the second tension wheel 202, the tension of the core wire is smaller.

[0037] Combine Figure 3 and Figure 4 As shown, the rotating shaft 10 of the third tension wheel 203 is connected to the guide block 11 and the slider 12 in sequence toward the direction of the driver 20. The driver 20 includes a first cover 21, a second cover 22 and a motor 23. The first cover 21 is located on the outside of the guide block 11, and the second cover 22 is located on the outside of the slider 12. The output end of the motor 23 is provided with a screw rod 24, which is threadedly connected to the slider 12 for driving the slider 12 to move along the second direction.

[0038] In this way, when the motor 23 drives the screw rod 24 to rotate, the slider 12 moves along the axial direction of the screw rod 24, that is, the second direction, so that the rotating shaft 10 of the third tension wheel 203 is displaced along the second direction. The third tension wheel 203 can approach or move away from the first tension wheel 201 and the second tension wheel 202, thereby changing the tension of the core wire when it passes around the tension wheel.

[0039] Furthermore, a guide rod 13 is provided in the second cover body 22 , the guide block 11 is slidably connected to the guide rod 13 , and the guide rod 13 is arranged along the second direction.

[0040] Thus, the outer wall of the guide block 11 is provided with a groove, and the guide rod 13 is arranged in the groove. When the guide block 11 moves along the second direction, the guide rod 13 supports and limits the guide block 11 .

[0041] Specifically, the rotating shaft 10 is rotatably connected to the guide block 11, and the pressure sensor is arranged between the rotating shaft 10 and the guide block 11. In this way, the pressure sensor can detect the pressure between the rotating shaft 10 and the guide block 11, and this pressure can reflect the tension of the core wire.

[0042] Combine Figure 5 As shown, the controller is electrically connected to the pressure sensor and the motor 23. The controller is configured to control the driver 20 to change the position of the rotating shaft 10 based on the pressure value detected by the pressure sensor so that the pressure value of the rotating shaft 10 is within a preset range.

[0043] Specifically, when the pressure sensor detects a pressure greater than a preset value, that is, the tension of the core wire is greater than the preset value, the motor 23 is controlled to rotate forward. At this time, the third tension wheel 203 moves away from the first tension wheel 201 and the second tension wheel 202, so that the tension becomes smaller. When the pressure detected by the pressure sensor is less than the preset value, that is, the tension of the core wire is less than the preset value, the motor 23 is controlled to flip. At this time, the third tension wheel 203 is close to the first tension wheel 201 and the second tension wheel 202, so that the tension increases. When the pressure detected by the pressure sensor is within the preset range, the motor 23 does not rotate, and the third tension wheel 203 is stable at the preset position.

[0044] In combination with the above embodiments, the utility model provides a tension detection and adjustment structure consisting of three passing wheels on the path of the core wire pay-off. The third passing wheel can move. When the wire core passes around the three passing wheels, pressure is generated on the third passing wheel. The pressure sensor detects the current pressure on the passing wheel. If the pressure does not meet the preset value, the third passing wheel is controlled to move closer to or away from the other two passing wheels, so that the tension of the wire core passing around the three passing wheels changes, so as to compensate for the tension change during the pay-off process.

[0045] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A tension control device for paying off a steel cord core wire, characterized in that: include: A first thread passing wheel (101) and a second thread passing wheel (102); A mounting plate (200), wherein a first tension wheel (201), a second tension wheel (202) and a third tension wheel (203) are provided on a first side of the mounting plate (200), wherein the first tension wheel (201) and the second tension wheel (202) are respectively located on both sides of the third tension wheel (203), and the core wire drawn from the I-shaped wheel passes through the first wire passing wheel (101), the second tension wheel (202), the third tension wheel (203), the second tension wheel (202) and the second wire passing wheel (102) in sequence; a driver (20) connected to the second side of the mounting plate (200); The cord direction of the axis of the first tension wheel (201) and the second tension wheel (202) is defined as a first direction, and the driver (20) can drive the rotating shaft (10) of the third tension wheel (203) to move along a second direction, and the second direction is perpendicular to the first direction; A pressure sensor is provided outside the rotating shaft (10) of the third tension wheel (203), and the pressure sensor is used to detect the pressure value applied to the rotating shaft (10) of the third tension wheel (203).

2. The tension control device for paying off the steel cord core wire according to claim 1, characterized in that: The first tension wheel (201), the second tension wheel (202) and the third tension wheel (203) are distributed in a triangle.

3. The tension control device for paying off the steel cord core wire according to claim 1, characterized in that: The first tension wheel (201) and the second tension wheel (202) are arranged at fixed positions on the mounting plate (200), and the first tension wheel (201) and the second tension wheel (202) are both rotatably connected to the mounting plate (200).

4. The tension control device for paying off the steel cord core wire according to claim 1, characterized in that: A waist-shaped hole (204) is provided on the mounting plate (200), and the rotating shaft (10) of the third tension wheel (203) passes through the waist-shaped hole (204), and the length direction of the waist-shaped hole (204) is toward the second direction.

5. The tension control device for paying off the steel cord core wire according to claim 1, characterized in that: The rotating shaft (10) of the third tension wheel (203) is connected to the guide block (11) and the slider (12) in sequence in the direction of the driver (20), and the driver (20) includes a first cover (21), a second cover (22) and a motor (23), the first cover (21) is located on the outside of the guide block (11), the second cover (22) is located on the outside of the slider (12), and the output end of the motor (23) is provided with a screw rod (24), and the screw rod (24) is threadedly connected to the slider (12) for driving the slider (12) to move along the second direction.

6. The tension control device for paying off the steel cord core wire according to claim 5, characterized in that: A guide rod (13) is provided in the second cover body (22), the guide block (11) is slidably connected to the guide rod (13), and the guide rod (13) is arranged along the second direction.

7. The tension control device for paying off the steel cord core wire according to claim 5, characterized in that: The rotating shaft (10) is rotatably connected to the guide block (11), and the pressure sensor is arranged between the rotating shaft (10) and the guide block (11).

8. The tension control device for paying off the steel cord core wire according to any one of claims 1 to 7, characterized in that: The invention also includes a controller, which is configured to control the driver (20) to change the position of the rotating shaft (10) based on the pressure value detected by the pressure sensor so that the pressure value of the rotating shaft (10) is within a preset range.

Images