JPS6222907B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a wire rope winding device.

When a wire rope is repeatedly wound and unwound using a winch or the like, the wire rope becomes twisted for some reason, resulting in a so-called kink state. If the wire rope is used in this kink state, there is a risk of damage to the wire rope.

Conventionally, in order to eliminate the kink in the wire rope that has become kinked as described above, the wire rope is first wound onto a reel, and then re-wound from the reel to another reel. We are trying to resolve this issue. It is undesirable to require extra steps and time for untwisting.

The present invention has been made based on the above circumstances, and provides a wire rope winding device capable of untwisting a wire rope at the same time as winding it onto a reel.

The invention will be explained in detail below with reference to the drawings. In FIG. 1, a machine frame 1 of a winding device has a bottom plate 1a and a column 1b erected on one side of the bottom plate 1a.
A twist number detecting device 2, which will be described later, is provided at the upper end of b. Further, the bottom plate 1a is provided with a turntable 3 driven by a motor (not shown) around a shaft 3a perpendicular to the bottom plate 1a, as will be explained later. A reel winder 4 is provided centered on an axis 4a perpendicular to , which is driven by a motor (not shown). In FIG. 1, 4b is a traverser of the reel winder 4, and 4c is a traverser 4b which reverses the wire rope R from the twist number detection device 2.
Shows the guide pulley that leads to. Furthermore, 5 indicates a winch or a capstan for winding the wire rope R.

In the above configuration, the twist number detection device 2 is configured as shown in FIG. That is, three guide pulleys 2a to 2c having axes perpendicular to the axis 3a and parallel to each other are provided on a protrusion 1c that protrudes from the upper end of the column 1b at right angles to the column, and the central pulley 2b is connected to the pulleys on both sides. A load cell 2d is attached to the central pulley 2b to measure the downward force acting on it, and the wire rope inlet side pulley 2c can measure the passing length of the wire rope by the number of revolutions of the pulley. A rotary encoder 2e is attached. Also, pulleys 2b and 2c
A strand detector 2f is provided between the two wire ropes, which non-contact detects the strands of the wire rope running between the two and generates a pulse every time the strand passes.

In the twist number detection device 2 having the above configuration, the tension acting on the wire rope R passing through the device 2 can be determined by the load cell 2d, and the length of the wire rope passing through the device 2 can be determined by the rotary encoder 2e. be able to. Further, the twist detector 2f generates one pulse for each twist thread that has passed. Therefore, rotary encoder 2e
This allows us to know how many twists there are during the passage of a predetermined length of wire rope, and how much tension was acting on the wire rope at that time.

FIG. 3 shows a circuit that controls the turntable 3 based on each of the above measured values. 6d, 6
Reference numerals f and 6c indicate amplifiers for amplifying the outputs of the load cell 2d, twist detector 2f, and rotary encoder 2e, respectively, and these outputs are input to the microprocessor 7.

The microprocessor 7 first calculates the number of twists per fixed length of the wire rope as described above.
This is then compared with the number of twists within the fixed length of a normal wire rope under tension. As a result of the comparison, if the calculated value is larger, it means that the wire rope has been twisted, and the difference indicates the degree of twist that has been added. Therefore,
The microprocessor 7 can drive the turntable 3 in the direction of untwisting the wire rope by an amount corresponding to the difference, thereby removing the added twist. On the other hand, if the calculated value is smaller as a result of the above comparison, it means that the wire rope is untwisted, and the microprocessor 7 moves the turntable 3 in the direction in which the wire rope is twisted. can be driven to eliminate untwisting.

As described above, in the wire rope winding device of the present invention, the twist applied to the wire rope for some reason while winding the wire rope can be released, so that the twist applied to the wire rope can be removed once the wire rope is wound as in the conventional method. There is no need to perform further rewinding for untwisting afterwards, which saves labor and time.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a plan view of its essential parts, and FIG. 3 is a control circuit diagram thereof. 1... Machine frame, 2... Twisted thread number detection device, 2d...
...Load cell, 2e...Rotary encoder, 2
f...Twisted mountain detector, 3...Turntable, 4
...Reel winder, 5...Winch, 7...Microprocessor.

Claims (1)

[Claims] 1. A turntable, a reel winder mounted on the turntable and having a reel axis perpendicular to the rotation axis of the turntable, and a first device for detecting the tension acting on the wire rope being guided and wound by the reel winder. Means: A twist number detection device comprising a second means for detecting twists of a wire rope and a third means for detecting a length of the passed wire rope; Calculate the number of strands included within a certain length of the wire rope from the detection output of each means in 3, and calculate the number of strands within a certain length of the regular wire rope under tension, which is determined from this calculation result and the detection output of the first means. 1. A wire rope winding device comprising: a microprocessor that compares the number of twists and twists, and drives a turntable in a direction to untwist or add twist by the required amount based on the comparison result.