Pay-off length detection device for steel cord stranding workshop

Abstract

The utility model relates to the technical field of steel cord production, in particular to a pay-off length detection device for a steel cord stranding workshop, which comprises a meter counter wheel shaft connected to a pay-off machine table; the detection sheet is connected to the outer wall of the meter counter wheel shaft and is fixed relative to the meter counter wheel shaft; the meter counting wheel is connected to the outer wall of the meter counter wheel shaft and is attached to the detection sheet; and the meter counting sensor is connected to the pay-off machine table. The meter counter is arranged on the pay-off machine table of the steel cord stranding workshop, the detection piece of the meter counter is provided with the two notches with different widths, and when the detection piece rotates continuously, the sensor can detect two pulse signals with different lengths in one rotation period. According to the two sections of pulse signals with different lengths, the number of rotation turns and the rotation direction of the detection sheet can be judged, so that meter counting errors caused by reverse rotation of the meter counter due to change of pay-off tension are avoided, and the pay-off length can be accurately measured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel cord production, and particularly relates to a wire release length detection device for a steel cord stranding workshop. Background Art

[0002] Through the traction of a wire release device, steel wires are smoothly drawn out from a storage or pretreatment device. In this process, it is necessary to control the wire release speed and tension to ensure that the steel wires are not damaged during the drawing process and maintain their original shape and performance.

[0003] Currently, a length meter is usually only set at the take-up machine. Due to the different lay lengths of various specifications of steel cords, the actual lengths of the wire release length and the take-up length do not match, resulting in the phenomenon that the wire release length is long and runs empty frequently. Workers need to re-thread and start, which affects production efficiency. Content of the Utility Model

[0004] In view of the technical problems existing in the wire release of steel cords in the prior art, the first aspect of the utility model provides a wire release length detection device for a steel cord stranding workshop, including:

[0005] A length meter wheel shaft, connected to the wire release machine platform;

[0006] A detection piece, connected to the outer wall of the length meter wheel shaft and fixed relative to the length meter wheel shaft;

[0007] A length meter wheel, connected to the outer wall of the length meter wheel shaft and in contact with the detection piece;

[0008] A length meter sensor, connected to the wire release machine platform;

[0009] Wherein, the detection piece is configured in a disc shape, the detection piece is provided with a first notch and a second notch, the width of the first notch is greater than the width of the second notch, the length meter sensor faces the detection piece, and when the detection piece rotates continuously, the first notch and the second notch pass through the detection path of the length meter sensor in sequence, forming a pulse signal for detecting the number of rotation cycles and the rotation direction of the detection piece.

[0010] Preferably, the detection path of the length meter sensor is tangent to a first circumference on the surface of the detection piece, the first notch and the second notch intersect with the first circumference, and on the first circumference, the width of the first notch is greater than the width of the second notch.

[0011] Preferably, the width of the first notch is more than three times that of the second notch.

[0012] Preferably, the first notch and the second notch are located within an arc length range of 1 / 4 to 1 / 3 of the first circumference.

[0013] Preferably, the first notch and the second notch are configured as arc-shaped incisions extending from the edge of the detection piece towards the center of the detection piece.

[0014] Preferably, the diameter of the length measuring wheel is smaller than the diameter of the first circumference.

[0015] Preferably, the surface of the length measuring wheel is provided with a first screw hole, the surface of the detection piece is provided with a second screw hole, and the length measuring wheel and the detection piece are fixedly connected by bolts.

[0016] Preferably, a clamping groove is provided on the first side of the detection piece, a convex structure is provided on the surface of the length measuring device wheel shaft, and the clamping groove of the detection piece is engaged with the convex structure on the surface of the length measuring device wheel shaft.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] The present utility model sets a length measuring device on the wire pay-off machine platform in the steel cord stranding workshop. The detection piece of the length measuring device is provided with two notches with different widths. When the detection piece rotates continuously, the sensor can detect two pulse signals with different lengths within one rotation period. According to these two pulse signals with different lengths, the number of rotations and the rotation direction of the detection piece can be judged, so as to avoid the length measuring error caused by the reverse rotation of the length measuring device due to the change of the pay-off tension. Therefore, the pay-off length can be accurately measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are not intended to be drawn to scale. In the drawings, each identical or approximately identical component shown in each figure can be denoted by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of examples and with reference to the drawings, wherein:

[0020] Figure 1 is a schematic structural diagram of the wire pay-off length detection device for the steel cord stranding workshop shown in the present utility model;

[0021] Figure 2 is a schematic structural diagram of the detection piece shown in the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows.

[0023] Combined with Figure 1As shown in the figure, a first aspect of the present utility model proposes a wire release length detection device for a steel cord stranding workshop, including a counter wheel shaft 1, a detection piece 4, a counter wheel 3 and a counter sensor 5. The counter wheel shaft 1 is connected to the wire release machine platform 7, and the wire release machine platform 7 is especially a data terminal unit machine platform in the stranding workshop, abbreviated as a DTU (Data Terminal Unit) machine platform. The wire release machine platform 7 is also equipped with equipment for monitoring operating parameters such as wire release tension and wire release temperature.

[0024] Furthermore, the detection piece 4 is connected to the outer wall of the counter wheel shaft 1 and is fixed relative to the counter wheel shaft 1. The counter wheel 3 is connected to the outer wall of the counter wheel shaft 1 and is in contact with the detection piece 4. The counter sensor 5 is connected to the wire release machine platform 7 through a bracket 6.

[0025] Among them, the surface of the counter wheel 3 is provided with a wire groove, and the stranded steel wire is wound around the surface of the counter wheel 3. When the steel wire is released, the counter wheel 3 rotates. By monitoring the number of rotations of the counter wheel, the wire release length can be detected, and the accuracy is related to the circumference of the counter wheel.

[0026] In an optional embodiment, the diameter of the counter wheel 3 is smaller than the diameter of the first circumference to prevent the counter wheel 3 from blocking the first notch 41 and the second notch 42.

[0027] Optionally, the surface of the counter wheel 3 is provided with a first screw hole, and the surface of the detection piece 4 is provided with a second screw hole. The counter wheel 3 and the detection piece 4 are fixedly connected by a bolt 2. A card slot is provided on the first side of the detection piece 4, and a convex structure is provided on the surface of the counter wheel shaft 1. The card slot of the detection piece 4 is engaged with the convex structure on the surface of the counter wheel shaft 1.

[0028] In this way, the counter wheel 3, the detection piece 4 and the counter wheel shaft 1 are connected together through this connection method.

[0029] Furthermore, the detection piece 4 is configured as a disc shape. The detection piece 4 is provided with a first notch 41 and a second notch 42. The width of the first notch 41 is greater than the width of the second notch 42. The counter sensor 5 faces the detection piece 4, and when the detection piece 4 rotates continuously, the first notch 41 and the second notch 42 sequentially pass through the detection path of the counter sensor 5.

[0030] Among them, the counter sensor 5 can be selected as an infrared sensor. The infrared sensor emits a laser beam in the direction of the detection piece 4, and a laser receiver is provided on the other side of the detection piece 4. When passing through the first notch 41 and the second notch 42, two pulse signals with different durations are generated, which are respectively signal a and signal b.

[0031] Thus, when the steel wire is continuously payed out and the length measuring wheel 3 continuously rotates, every time it rotates one week, the first notch 41 and the second notch 42 both sequentially pass through the detection path of the length measuring sensor 5, forming a periodic pulse signal (one pulse signal includes signal a and signal b). The number of rotations of the length measuring wheel 3 can be detected through the number of pulse signals. If during the pay-out process, the length measuring wheel 3 reverses due to reasons such as tension fluctuations, then within this rotation period, signal b appears first and then signal a. After this rotation signal appears, it is determined as a reverse rotation, and the length should be subtracted from the measurement. Therefore, by detecting the number of rotations and the rotation direction of the detection piece 4, the accurate length of the length measurement can be judged.

[0032] Optionally, the detection path of the length measuring sensor 5 is tangent to the first circumference on the surface of the detection piece 4, and the first notch 41 and the second notch 42 intersect with the first circumference. On the first circumference, the width of the first notch 41 is greater than the width of the second notch 42. Thus, after the detection piece 4 rotates, the first notch 41 and the second notch 42 will be detected when passing through the optical path of the length measuring sensor 5, and the detection signals caused by the two notches are different.

[0033] Preferably, in order to increase the difference between the pulse signals formed by the two notches, the width of the first notch 41 is more than three times that of the second notch 42.

[0034] Furthermore, the first notch 41 and the second notch 42 are located within an arc length range of 1 / 4 to 1 / 3 of the first circumference. Thus, when the detection piece 4 rotates forward, the interval between the appearance of signal a and signal b is very short, and only when the detection piece 4 rotates an arc length of 1 / 4 to 1 / 3 is required. When the detection piece 4 rotates in reverse, the interval between the appearance of signal a and signal b is longer, and the detection piece 4 needs to rotate an arc length of 3 / 4 to 2 / 3. Thus, it can avoid misjudgment of forward and reverse rotations.

[0035] In an alternative embodiment, the first notch 41 and the second notch 42 are configured as arc-shaped cuts extending from the edge of the detection piece 4 towards the center of the detection piece 4. Thus, it is beneficial for processing the first notch 41 and the second notch 42.

[0036] Combining the above embodiments, the utility model sets a length measuring device on the pay-off machine in the steel cord stranding workshop. The detection piece of the length measuring device is provided with two notches with different widths. When the detection piece continuously rotates, the sensor can detect two pulse signals with different lengths within one rotation period. According to these two pulse signals with different lengths, the number of rotations and the rotation direction of the detection piece can be judged, so as to avoid the length measurement error caused by the reverse rotation of the length measuring device due to the change of pay-off tension. Therefore, the pay-off length can be accurately measured.

[0037] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model pertains can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. A pay-off length detection device for a steel cord stranding workshop, characterized in that: include: The meter counter axle (1) is connected to the wire-laying machine (7); A detection sheet (4) connected to the outer wall of the meter counter axle (1) and fixed relative to the meter counter axle (1); A meter wheel (3) connected to the outer wall of the meter wheel shaft (1) and in contact with the detection sheet (4); A meter sensor (5) connected to the wire-laying machine (7); The detection piece (4) is configured in a disc shape, the detection piece (4) is provided with a first notch (41) and a second notch (42), the width of the first notch (41) is greater than the width of the second notch (42), the meter sensor (5) faces the detection piece (4), and when the detection piece (4) rotates continuously, the first notch (41) and the second notch (42) sequentially pass through the detection path of the meter sensor (5), forming a pulse signal for detecting the number of rotations and the direction of rotation of the detection piece (4).

2. The pay-off length detection device for a steel cord stranding workshop according to claim 1, characterized in that: The detection path of the meter sensor (5) is tangent to a first circumference of the surface of the detection sheet (4); the first notch (41) and the second notch (42) intersect with the first circumference; and on the first circumference, the width of the first notch (41) is greater than the width of the second notch (42).

3. The pay-off length detection device for a steel cord stranding workshop according to claim 2, characterized in that: The width of the first notch (41) is more than three times that of the second notch (42).

4. The pay-off length detection device for a steel cord stranding workshop according to claim 2, characterized in that: The first notch (41) and the second notch (42) are located within a range of 1 / 4 to 1 / 3 of the arc length of the first circle.

5. The pay-off length detection device for a steel cord stranding workshop according to claim 1, characterized in that: The first notch (41) and the second notch (42) are configured as arc-shaped cutouts, extending from the edge of the detection sheet (4) toward the center of the detection sheet (4).

6. The pay-off length detection device for a steel cord stranding workshop according to claim 2, characterized in that: The diameter of the meter wheel (3) is smaller than the diameter of the first circle.

7. The pay-off length detection device for a steel cord stranding workshop according to claim 6, characterized in that: A first screw hole is provided on the surface of the meter wheel (3), a second screw hole is provided on the surface of the detection sheet (4), and the meter wheel (3) and the detection sheet (4) are fixedly connected by bolts (2).

8. The pay-off length detection device for a steel cord stranding workshop according to claim 1, characterized in that: A first side of the detection sheet (4) is provided with a slot, a surface of the meter counter axle (1) is provided with a protruding structure, and the slot of the detection sheet (4) is engaged and connected with the protruding structure on the surface of the meter counter axle (1).

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