JPH053979Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Background and Purpose of the Invention] The present invention relates to a device for detecting the rotation of a cable drum, particularly a drum rotation detection device for an under-roll type winder.

Conventionally, devices for detecting the rotation of a cable drum have detected the rotation of the drum by providing a protrusion or a recess in the bearing portion of the drum, inserting a shaft therein, and detecting the rotation of the shaft. but,
Mechanically, this method mainly operates the drum rather than the shaft, so it is necessary to apply special processing to the drum itself or attach protrusions to the drum, and a shaft operating device is also required. Therefore, it is not only mechanically complex but also expensive. Further, there is no example of a drum rotation detection device using under-roll operation.

An object of the present invention is to provide a drum rotation detection device that can detect drum rotation with accuracy that cannot be obtained with the prior art, and that also simplifies setup work.

[Summary of the idea]

In other words, the gist of the present invention is that there is no need to perform any special processing on the drum itself, it can be applied to drums of various sizes, and the rotation of the drum can be detected accurately. It has a configuration that allows stable rotation to be detected even when the

〔Example〕

FIG. 1 shows an embodiment of a drum rotation detection device according to the present invention, in which 10 is a cable drum and 11 is a bearing portion thereof. 20 is a chuck attached to this bearing portion 11. Check 2
0 is a shaft 21 (equipped with a lock pin 21a) as shown in FIG.
A taper cone 22 is attached to the tip of the shaft 21, a holding plate 23 is attached to the approximate center of the shaft 21, a handle 24 is attached to the rear of the shaft 21, and a pin 23a is attached to the top and bottom of the shaft 21. Therefore, between the chuck piece 25 (which is provided with a lock pin through hole 23b through which the lock pin 21a passes), which is swingably attached to the holding plate 23 and opens and closes with the movement of the taper cone 22, the holding plate 23 and the handle 24. It is composed of a spring 26 provided around the shaft 21. The chuck 20 has a tapered cone 22 and a presser plate 23 attached to the tip of the shaft 21.
The chuck piece 25, which is swingably attached to the drum 1,
By inserting it into the bearing part 11 of drum 1,
0 and fully locked. 1 and 2A and 2B show chuck 20 in such a mounted and locked condition. In order to remove the chuck 20 from this state as shown in FIG. 2C, first rotate the shaft 21 a little as shown in FIG. 2B so that the position of the lock pin 21a matches the position of the lock pin through hole 23b. Handle 2
4 to compress the spring 26 and the shaft 2
1 and lock pin 21a to the handle 2.
4 side through the lock pin through hole 23b of the holding plate 23, and the lock by the taper cone 22 is released on the way, so the chuck piece 25 changes from the open (pushed and expanded) state shown in FIG. 2A to the state shown in FIG. It becomes the closed state of C. In this state, the entire chuck 20 is pulled out from the bearing portion 11. Conversely, when attaching and locking the chuck 20 to the drum 10, first attach the chuck 20 to the drum 10 and bring it into the state shown in FIG. 2C, and then
When the handle 24 is operated, the shaft 21 is moved by the force of the spring 26, the chuck piece 25 is opened by the lock by the taper cone 22, and the lock pin 21a is brought to the handle 24 side. Therefore, if the shaft 21 is rotated in the opposite direction to the above-mentioned direction, the positions of the lock pin 21a and the lock pin through hole 23b will shift (that is, they will not match), and the chuck 20 will be completely locked into the bearing part 11. Become. In this way, check 2
0 has chuck piece 25 by taper cone 22.
When opened, it is pressed against the bearing part 11.

As shown in FIG. 1, the chuck 20 has one end attached to the bearing part 11 of the drum 10, and an adapter 30 attached to the other end.
Furthermore, it is connected to a rotation detector 50 by a flexible shaft 40. With this configuration, the chuck 20 also rotates as the drum 10 rotates, and this rotation is transmitted to the flexible shaft 40, so that the rotation detector 50 can be used to detect the operation of the under roll (60 in FIG. 3), etc. is drum 1 regardless
0 rotation can be detected accurately.

Although not shown, the flexible shaft 40 has, for example, one piano wire as a core wire, and several piano wires on top of which the first layer is S-twisted, the second layer is Z-twisted, and the third layer is S-twisted. Twisting, Z-twisting the fourth layer, etc., etc. There are those in which each layer is twisted in opposite directions, those in which each layer consists only of S twists or only Z twists, and those in which each layer consists of only SZ twists. Furthermore, flexible shaft 40
In order to protect the above-mentioned strands or inner shaft, it is desirable to have a flexible outer tube of rubber or plastic covered thereon with an appropriate gap. The bare wire is not limited to piano wire, but may also be iron wire.

FIG. 3 shows a side view of an embodiment of the present invention installed on a winding machine. In the figure, 60 is an under roll and 70 is a traverser.
When the present device is associated with the drum 10, aligned winding that follows the rotation of the drum 10 is possible.

[Effect of idea]

Since the present invention is configured as described above, there is no need for a device that directly connects the drum to the winding rotation shaft, and the complexity of the machine is eliminated and the size of the drum can be adjusted freely.

It is also effective when the rotation of the drum is discontinuous or when the rotation of the drum itself is accurately detected.
There is also the advantage that more accurate correspondence can be made to the aligned winding of the cable.

[Brief explanation of drawings]

FIG. 1 is a three-dimensional perspective view of an embodiment of the drum rotation detection device according to the present invention, FIGS. 2A and C are schematic side views of the chuck in the locked and unlocked states, respectively, and FIG. 2B is a schematic side view of the chuck in the locked and unlocked states. FIG. 3 is a side view of the winding machine equipped with the embodiment shown in FIG. 1, which shows the relationship between the lock pin and the lock pin through hole. 10 is a cable drum, 20 is a chuck, 30 is an adapter, 40 is a flexible shaft, 50 is a rotation detector, and 60 is an under roll.

Claims (1)

[Claims for Utility Model Registration] (1) A system comprising a chuck 20 attached to the cable drum 10, a flexible shaft 40 connected to the chuck 20, and a rotation detector 50 connected to the flexible shaft 40. , an under roll 6 on which the drum 10 is placed;
0, the chuck 20 has a shaft 21 with a taper cone 22 attached to the tip side, a lock pin 21a in the middle, and a handle 24 attached to the rear end side, the taper cone 22 and the handle. If the shaft 21 is on the shaft 21 between 24 and 24, the shaft 21
The presser plate 23 is inserted so as to be movable on the circumference, and the pins 23a are attached at the top and bottom (or left and right) of the shaft 21.
It consists of a chuck piece 25 which is swingably attached to the presser plate 23 and opens and closes with the movement of the taper cone 22, and a spring 26 provided around the shaft 21 between the presser plate 23 and the handle 24. A drum rotation detecting device characterized in that it is configured so that it can be attached to a cable drum 10 by sandwiching the drum bearing portion 11 between a chuck piece 25 and a holding plate 23 which are spread out by a chuck 22. (2) The flexible shaft 40 consists of several layers of piano wire or iron wire on top of one piano wire or iron wire as a core wire, such as alternately S-twisted and Z-twisted wires, or only S-twisted wires. , a stranded wire having only a Z twist, or a stranded wire having an SZ twist. (3) The drum rotation detection device according to claim 2, wherein the flexible shaft 40 is a utility model in which the twisted wires on the core wire are covered with a flexible outer tube.