JPS6027168B2 - Deflection correction device for cantilever-supported rod members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sagging correction device for a cantilevered weight member.

Usually, there is a fairly long shabumura that is supported cantilevered among the mechanical parts.

For example, in a continuous molding machine for fiber-reinforced plastic pipes, pipes are continuously molded on a long metal core birch supported in a cantilevered manner. In this case, since the wick is supported on a cantilever, the tip curls downward due to its own weight, making it difficult to obtain the straightness of the wick. Therefore, at present, we use cores*stem that are long enough to avoid rubbing. The present invention has been made in view of the above-mentioned drawbacks of the conventional cantilevered shank member, and has been improved by incorporating a magnet inside the shank member and facing the internal magnet with a predetermined gap. This is a device for correcting the sagging of the longest twill member cantilevered by placing external magnets on the frame side and using the attractive force and repulsion force between these opposing magnets. The basic structure of the invention will be explained with reference to the drawings as follows.

In the drawings, reference numeral 1 denotes a hollow birch member supported in a cantilevered manner by a frame 2 of the machine, and an internal magnet 3 is placed in the cavity of this twill member 1.

Although the drawing shows a case in which four magnets are arranged side by side with their magnetic poles aligned so that the lines of magnetic force flow in the vertical direction, a single rectangular magnet may be used. Numerals 4 and 5 are external magnets fixed to the machine frame 2 facing the internal magnet 3 in the vertical direction and with a predetermined gap t, and in the drawing, external magnets have the same dimensions as the internal magnet row. Although the case is shown in which a dedicated magnet is used, it may be a magnet in which several magnets are arranged in parallel with their magnetic poles aligned, similar to the internal magnet.

The polarity of the internal magnet 3 and the upper and lower external magnets 4 and 5 is
The magnets are arranged so that an attractive force acts between the internal magnet 3 and the upper external magnet 4, and a repulsive force acts between the internal magnet 3 and the lower external magnet 5, respectively. For example, as shown in FIG.
When the poles are oriented upward, the N pole of the upper external magnet 4 is oriented downward, and the N pole of the lower external magnet 5 is oriented upward. With the above configuration, the twill member 1 is pulled upward by the upward attractive force and repulsion force of the internal magnet 3 and the upper and lower external magnets 4 and 5, and the downward sagging of the twill member 1 is corrected. The above is a twill for correcting the downward sagging of the shim member, and includes the above-mentioned internal magnet 3 and external magnets 4 arranged above and below.
, 5 can sufficiently correct the downward protrusion of the shank member 1, but when the magnetic force is strong due to breakage, etc., the shank member may swing horizontally and deflect the magnetic force of the upper and lower magnets. The internal magnet 6 and the external magnets 7 and 8 arranged on the left and right sides of FIG. 1 are for correcting the deflection of the twill member in the horizontal direction. A separate internal magnet 6 is arranged in parallel with the internal magnet 3 so that the lines of magnetic force flow horizontally within the cavity of the Kobe village 1, and is opposed to the internal magnet in the left and right direction of the internal magnet. External magnets 7 and 8 are fixed to the frame of the machine with a predetermined gap between them. The polarities of the internal magnet 6 and the left and right external magnets 7 and 8 are arranged so that a repulsive force acts between the internal magnet and the left and right magnets. For example, as shown in FIG. 3, if the S pole of the internal magnet 6 is directed to the left and the N pole is directed to the right, the external magnet on the left side? The S pole of the external magnet 8 on the right side is placed to face the right side, and the N pole of the right external magnet 8 is placed to face the left side, so that the repulsive force acting between the magnets prevents the twill member from swinging in the horizontal direction. It is something. 4 to 7 show specific examples of the device according to the present invention, in which 11 is a metal pipe, 12 is an internal magnet, and 6 magnets are arranged in parallel and placed in the cavity of the metal pipe. , and fixed in the pipe with eboxy resin 13.

The magnets 12-1 to 12-4 are internal magnets for correcting the downward sagging of the pipe, and are arranged so that the lines of magnetic force flow in the vertical direction, and the other magnets 12-5 and 12-6 are This is an internal magnet to prevent the pipe from swinging in the horizontal direction, and is arranged so that the lines of magnetic force flow horizontally. 14 is the internal magnet 12
External magnets 11 to 12-4 are placed above and below to face each other, and external magnets 15 are placed on the left and right sides to face internal magnets 12-5 and 12-6. Bolts and nuts 18' are attached to angles 17 fixed to the frame.

The attractive force and repulsive force between the magnets are determined by the gap t between each magnet.This gap t can be easily created by loosening the nut and screwing the bolt. When the gap is on the other side, approximately 5x9 between the upper external magnet and internal magnet, and approximately 3k between the lower external magnet and internal magnet.
A push-up force of 9 was obtained, and a counter-trailing force of approximately 2k9 was obtained on the left and right sides.

The present invention may utilize either a permanent magnet or an electromagnet,
In the case of permanent magnets, if used in conjunction with a known degaussing device, roughing work etc. can be facilitated.

As explained above, the present invention is a device for correcting the sagging of the free end of the longest twill member 1 supported horizontally on a fixed frame 2, and the twill member 1 is constructed of a hollow pipe. ,
Both poles of an internal magnet 3 are arranged inside the twill member 1 at an appropriate position in the longitudinal direction, with both poles facing in the vertical direction, and an external magnet 4 that attracts the internal magnet 3 is placed above the outside of the twill member 1 to face the internal magnet 3. , and ``is fixedly arranged on the frame 2 etc. with a predetermined gap, and an external magnet 5 that repulses with the internal magnet 3 is placed below the outside of the support member 1, facing the internal magnet 3'', and with a predetermined gap. Lean it up and place it fixedly on frame 2, etc., and further,
A separate internal magnet 6 is arranged inside the Harubemura 1 and in the direction of the bag, along with the internal magnet described above, with both poles facing both left and right sides in the horizontal direction, and the internal magnet 6 is placed on both the left and right sides of the outer side of the twill member 1. Since the external magnets 7 and 8, which repel each other and the internal magnet 6, are arranged at intervals on the frame 2, etc., with a predetermined gap, the vertical movement of the camellia member 1 is performed on the upper side. It is corrected by the sum of the force of the outer magnet 4 on the lower side attracting each other to the inner magnet 3 and lifting it upward, and the force on the lower side of the outer magnet 5 repelling the inner magnet 3 and lifting it upward. The deflection to the left and right is caused by the external magnets 7 on both sides relative to the internal magnet 6.
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[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram schematically showing a baldness correction device according to the present invention, and FIGS. 2 and 3 are cross-sectional views taken along line AA and line BB in FIG. 1, respectively. 4 to 7 show specific examples of the device according to the present invention, in which FIG. 4 shows the relationship between the metal pipe and the internal magnet, and FIG. 5 shows a sectional view taken along line CC in FIG. 4. FIGS. 6 and 7 are explanatory diagrams of the external magnets, respectively. 1... Twill member,
3... Internal magnet, 4, 5... External magnet, t... Gap. Figure 1 Figure 2 Figure 3 Dimensions Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A device for correcting the deflection of the free end of a long bar member supported horizontally on a fixed frame, the bar member being constructed of a hollow pipe, and a device installed inside the bar member at an appropriate position in the longitudinal direction. Both poles of the internal magnet are arranged in the vertical direction, and an external magnet that attracts the internal magnet is placed above the outside of the bar member to face the internal magnet, and is fixedly arranged on a frame or the like with a predetermined gap, An external magnet that repulses the internal magnet is placed below the outside of the bar member, facing the internal magnet, and fixed to a frame or the like with a predetermined gap, and further, inside the bar member and in the axial direction. In line with the internal magnet, a separate internal magnet is arranged with both poles facing both left and right sides in the horizontal direction, and an external magnet and an internal magnet that repel the internal magnet are opposed to each other on the left and right sides of the outside of the bar member, A deflection correction device for a cantilevered bar member, characterized in that the device is fixedly arranged on a frame or the like with a predetermined gap.