JPS5853444B2 - doujiku cable seizou sochi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coaxial cable H manufacturing apparatus that continuously attaches disks (dielectric disks) to the center conductor of a coaxial cable.

Conventional coaxial cable manufacturing equipment of this type is shown in Figures 1 and 2.
This will be explained with reference to Figures A and B.

In this device, a grooveless disk 1 is supplied to the outer periphery of a magazine 3 through a disk supply mechanism 2.

The grooveless disk 1' has an outer diameter equal to the inner diameter of the outer conductor of the coaxial cable, and has a center conductor 4 to be attached in the center.
It has a conductor fitting hole 5 which is slightly smaller than the outer diameter of the conductor.

The magazine 3 is disk-shaped and has disk fitting grooves 6 at regular intervals on its outer periphery, and is driven by a drive means (not shown) so that its circumferential speed is synchronized with the feeding speed of the center conductor 4. It has become.

The grooveless disk 11 is fitted into the groove 6 of the magazine 3 every time the disk fitting groove 6 of the magazine 3 comes under the supply port of the disk supply mechanism 2, and is transported as the magazine 3 rotates in the direction of the arrow.

A groove cutting knife 1 is disposed on the path along which the disk 1' is supported by the magazine 3 and conveyed, and cuts a groove into each of the non-grooved disks 1/ as shown in FIG. 2B. A conductor introduction groove 8 is cut to form a grooved disk 1.

Further, a rectangular guide 9 is arranged on this passage so that the groove 8 of the grooved disk 1 can be kept facing outward.

The guide 9 is widened in a wedge-like manner with respect to the disk 1 at a lower end 9', and a groove (not shown) is formed in the lower end 9' to allow the center conductor 4 to pass therethrough.

A support 10 is disposed below the magazine 3 so as to receive the leading end of the disk 1.

At this support body 10, the disks 1 supported by the magazine 3 are attached to the center conductor 4 at regular intervals through the conductor introduction grooves 8 by the force of the magazine 3.

In this device, in order to successfully attach the grooved disk 1 to the center conductor 4, it is necessary to always synchronize the peripheral speed of the magazine 30 and the linear speed of the center conductor 40 so that they are the same speed.

However, detecting the linear velocity of the center conductor 40 and controlling the rotation of the magazine 30 using this detection signal has the disadvantage that the structure becomes complicated and the device becomes expensive.

Furthermore, in this device, the grooves are cut by applying a knife to the rotating grooveless disk supported by the magazine 3, which places a large load on the magazine 3 and has the drawback that synchronization is difficult to achieve.

An object of the present invention is to provide a coaxial cable manufacturing apparatus which has a very simple structure, yet allows a disk mounting rotation mechanism to be always synchronized without detecting linear velocity, and which allows use of grooved disks from the beginning. .

Embodiments of the apparatus according to the present invention will be described in detail below with reference to FIGS. 3 to 6.

That is, in this apparatus, a disk mounting rotation mechanism 11 is used instead of a magazine.

This mechanism 11 has three rotatable cylindrical rollers 12 to 14 arranged along the center conductor 4, and an endless disk mounting belt 15 is passed over these rollers.

The belt 15 is made of an elastic material such as rubber, and is provided with a conductor fitting groove 16 at the center of its surface in the axial direction over the entire circumference. A fitting groove 17 is provided for this purpose.

The width of the conductor fitting groove 16 is selected so that the center conductor 4 is tightly fitted and the conductor 4 is sandwiched between both side walls of the groove 160.

The disc fitting groove 17 has the disc 10 dimensions (thickness, diameter)
It is formed slightly thicker so that the disc 1 can be easily fitted into it.

The disk supply mechanism 2 that supplies the disk 1 to the belt 15 is formed in such a structure that it gradually curves from a vertical state and approaches the belt 15 from the approach direction at the end.

Such a supply mechanism 2 is filled with a grooved disk 1 in which a conductor introduction groove 8 is formed in advance.

The guide 9 that guides the grooved disk 1 fitted into the belt 15 downward while holding it down has a protrusion 9a on its inner surface,
This protrusion 9a fits into the groove 8 of the grooved disk 1, and holds the groove 8 so that it always faces outward.

The protrusion 9a is slightly flared at the lower end 9' of the guide 9, and expands the groove 8 so that the center conductor 4 can be easily fitted into the groove 8.

On the other hand, the center conductor 4 is taken off by a take-off machine 18 such as a caterpillar.

In such a device, when the center conductor 4 is taken off by the take-off machine 18, the belt 15, which holds the center conductor 4 between the fitting grooves 16, is rotated synchronously.

As this belt 15 rotates, the grooved disk 1 is supplied from the disk supply mechanism 2 to the groove 17 of this belt.

The grooved disk 1 fitted into the groove 17 of the belt 15 is regulated by the protrusion 9a fitted into the groove 8 so that the conductor introduction groove 8 always faces outward, and the grooved disk 1 is held together with the belt 15. It rotates and descends.

When the grooved disk 1 is removed from the guide 9, the center conductor 4 immediately enters the groove 8.

When the belt 15 further rotates, the grooved disk 1 is fitted onto the outer periphery of the center conductor 4 by the pressure of the roller 14.

In this way, the grooved disks 1 are successively attached to the center conductor 4 at regular intervals.

As described above, in the coaxial cable manufacturing apparatus of the present invention, the disk is attached to the center conductor by a disk attachment rotation mechanism mainly consisting of a disk attachment belt that rotates while frictionally engaging with the center conductor. The mechanism is necessarily synchronized with respect to the center conductor, and there is no need to add a special circuit or mechanism for synchronization, and there is no need to add a special drive source to this mechanism, so the structure is not complicated. It can be implemented at low cost without causing any damage.

Moreover, this disk mounting rotation mechanism has the advantage that the disk mounting pitch does not change no matter how much the linear velocity changes because it is driven using the movement of the center conductor.

Moreover, since the disc mounting belt with the conductor fitting groove has an endless structure, as it rotates, the part that is away from the center conductor comes back and is repeatedly frictionally engaged with the center conductor, so special measures are required. Frictional engagement of the belt with the center conductor can be performed automatically without using the belt.

Furthermore, since the device of the present invention uses a grooved disk in which conductor introduction grooves are formed in advance, there is no need to cut grooves within the disk rotation mechanism, and the load for cutting grooves is not placed on this mechanism. synchronization will not be disrupted.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional device, FIGS. 2A and B are plan views of a non-grooved disc and a grooved disc, FIG. 3 is an explanatory diagram showing an example of the device according to the present invention, and FIG. Figure 3 is a perspective view of the belt used in Figure 3, Figure 5 is an enlarged sectional view of the joint between the disk supply mechanism and the guide used in Figure 3, and Figure 6 is the guide shown in Figure 3. FIG. 2 is an enlarged cross-sectional view showing the relationship between a protrusion, a grooved disk, and a belt. DESCRIPTION OF SYMBOLS 1... Grooved disk, 2... Disk supply mechanism, 4... Center conductor, 8... Conductor introduction groove, 9... Guide, 11...Disc mounting rotation mechanism, 15...Disk mounting belt, 16...Conductor fitting groove, 17...
・Disc fitting groove.

Claims (1)

[Claims] 1. In a coaxial cable manufacturing device that attaches grooved disks to a running center conductor at regular intervals, a disk attachment rotation mechanism that attaches the grooved disk to the center conductor, and a disk that supplies the grooved disk to the mechanism. a supply mechanism; and a guide for guiding the grooved disk in the disk mounting rotation mechanism so that the conductor introduction groove of the grooved disk always faces outward, and the disk mounting rotation mechanism has an endless disk mounting belt. This belt has:
A conductor fitting groove that is frictionally engaged with the center conductor is provided around the entire circumference so that the belt is synchronously rotated using the movement of the center conductor, and the belt has a conductor fitting groove extending across the conductor fitting groove. A coaxial cable manufacturing device characterized in that disk fitting grooves are provided at regular intervals.