JPH1149431A - Bobbin exchange device for wire stranding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily exchange a bobbin in a device in which a pair of supporting shafts rotatably supporting the bobbin are advanced or retreated so as to fit or detach the bobbin against a cradle by providing a part of the cradle containing one supporting shaft capably of opening/closing in the direction of not obstructing movement of the bobbin. SOLUTION: In an arch type wire stranding machine, a pair of supporting shafts are oppositely fitted to the before side part and the behind side part of a cradle 5, a bobbin 8 is rotatably supported with both supporting shafts 6. In this case, a part of the before side part 5a of the cradle 5 opposite to the bobbin 8 is cut out larger than the diameter of the flange of the bobbin 8, and an opening/closing body 20 opening/closing in the vertical direction is provided on this part. A horizontal shaft 21 fitted to the opening/closing body 20 is rotationally movably supported with the before side part 5a, a gear 22 fitted to the end part of the inside is engaged with a gear 24 of an opening/ closing motor fitted to the cradle 5, and the opening/closing body 20 can be rotationally moved centering around the horizontal shaft 21 by drive of the opening/closing motor between a horizontal posture A and a vertical posture B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin exchanging apparatus for exchanging an empty bobbin and a full bobbin in a twisting machine.

[0002]

2. Description of the Related Art In a conventional arch type twisting machine, as shown in FIGS. 8 and 9, a rotating body 3 having a pair of arches 2 on a support 1 is rotatably supported around a left-right axis. Rotated by 4. A cradle 5, which is a substantially rectangular frame, is rotatably supported on the rotating body 3 via a bearing, and is rotated so as to maintain a horizontal state while the rotating body 3 is rotating.

The front and rear sides of the cradle 5 have support shafts 6, 6 in the front-rear direction perpendicular to the left-right axis, respectively.
7 are mounted opposite each other, and bobbin 8
Are rotatably supported. The other of the support shafts 6 and 7 is fixed to the cradle 5 via a bearing, and connected to a bobbin brake 9 such as a powder brake and a band brake via a gear and a belt. The power is transmitted to the bobbin 8, and the bobbin 8 is braked. One support shaft 6 is supported movably in the front-rear direction with respect to the cradle 5, and is advanced and retracted with respect to the other support shaft 7 by an advance / retreat motor 10. Thus, the bobbin 8 can be attached to and detached from the cradle 5.

As shown in FIG. 10, a pit 11 is formed below the cradle 5, and the pit 11 communicates with a bobbin entrance 12 in front of the twisting machine. The pit 11 is provided with a mounting table 13 on which the bobbin 8 is mounted and which rotates in the horizontal direction. The mounting table 13 is provided on a carriage 14 which travels in the front-rear direction. In addition, a lifter that moves the mounting table 13 up and down is provided integrally with the carriage 14. Alternatively, a lifter is provided in the pit 11.

[0005] Therefore, the bobbin exchanging device comprises a mechanism for moving the support shafts 6 and 7 forward and backward, and a mechanism for transporting the bobbin 8 to the cradle 5 in the vertical and longitudinal directions.

Here, when replacing the bobbin 8, the carriage 14 is first positioned below the bobbin 8, and the mounting table 13 is raised by the lifter until it comes into contact with the bobbin 8. Then, by moving one of the support shafts 6 outward, the two support shafts 6 and 7 are extracted from the bobbin 8. At this time, the mounting table 13 is slightly moved in the front-rear direction, or the bobbin 8 is slipped off the other support shaft 7 and the bobbin 8 is mounted on the mounting table 13. After that, the mounting table 13
Is lowered, the carriage 14 is moved to the front side, and the mounting table 13 is raised to the floor line position. The mounting table 13 is rotated in a predetermined direction, and the bobbin 8 is rolled out.

Then, instead, another bobbin 8 is rolled in, and the mounting table 13 is moved in the front-rear direction and the up-down direction, and the bobbin 8 is carried into the cradle 5, contrary to the above.
By moving one support shaft 6 inward,
The bobbin 8 is supported by both support shafts 6 and 7, and the bobbin 8 is mounted.

[0008]

As described above, the bobbin 8
Is replaced, the cradle 5 is in a horizontal state, and the rotating body 3 is stopped at an oblique position so as not to hinder the movement of the bobbin 8. Therefore, in order to avoid the cradle 5, the bobbin 8 is moved vertically and horizontally in the front-rear direction.

At this time, the upper part of the bobbin 8 is
It is necessary to lower the bobbin 8 to a position where the bobbin 8 does not come into contact, and the stroke of the lifter must be increased. For this reason, a lifter having a large lift and a high strength is required, and the cost is increased.

Further, in order to lower the bobbin 8 sufficiently, the pit 11 must be deepened, which increases the cost of foundation work when installing a twisting machine.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a twisting machine capable of easily replacing a bobbin when the bobbin is moved so that the bobbin can be replaced.

[0012]

According to the present invention, a bobbin is rotatably supported via a pair of support shafts in a cradle of a twisting machine, and the cradle is advanced by moving the support shaft forward and backward. In the bobbin exchange device for carrying out the loading and unloading of the bobbin by moving the bobbin in the axial direction and the vertical direction in the bobbin exchanging device, a part of the cradle including one of the support shafts does not hinder the bobbin movement. It can be opened and closed.

According to this, the cradle is only partially divided so that the bobbin can be opened and closed so as not to interfere with the bobbin when the bobbin is moved. When the part is opened, the bobbin passes through the opened part.

Therefore, it is not necessary to largely move the bobbin so as not to interfere with the cradle. Therefore, it is not necessary to make the pit deep or to increase the lifter stroke.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bobbin exchanging device for a twisting machine according to an embodiment of the present invention will be described with reference to FIGS. The bobbin exchanging device of the present embodiment includes a mechanism for moving the support shafts 6 and 7 in the front-rear direction and a mechanism for transporting the bobbin 8 in the vertical and front-rear directions with respect to the cradle 5 as in the related art. A part of the cradle 5 including one support shaft 6 is opened and closed in a direction that does not hinder the movement of the bobbin 8.

That is, a portion of the front side 5a of the cradle 5 facing the bobbin 8 is cut out larger than the diameter of the flange of the bobbin 8, and an opening / closing body 20 that opens and closes vertically is provided in this portion. The horizontal shaft 21 attached to the opening / closing body 20 is rotatably supported by the front side 5 a of the cradle 5 and penetrates the cradle 5. A gear 22 is attached to an inner end thereof, and meshes with a gear 24 of an opening / closing motor 23 attached to the cradle 5. When the motor 23 is driven, the opening / closing body 20 is moved along the horizontal axis 2.
1 is rotated between a horizontal posture A and a vertical posture B. Note that, instead of the motor 23, a combination of a cylinder and a rack and pinion may be rotated. Further, it may be opened and closed manually without providing the motor 23,
A claw that engages with the opening / closing body 20 may be provided so as to be held in the vertical posture B.

The opening / closing member 20 has one support shaft 6 attached thereto.
Is attached, and the distance between the center of the support shaft 6 and the center of the horizontal shaft 21 is larger than at least the radius of the flange of the bobbin 8. Further, a receiving bracket 25 for receiving the tip of the opening / closing body 20 is attached to the cradle 5, and the opening / closing body 2
0 comes into contact with the receiving bracket 25, thereby opening and closing the
0 is maintained in the horizontal posture A. At this time, it is preferable to fix the opening / closing body 20 so as not to come off by the screw. The other configurations of the bobbin changing device and the configuration of the stranded wire machine are the same as those of the conventional one.

In the above configuration, when the bobbin 8 is replaced, the rotating body 3 is stopped at an oblique position, and then the carriage 14 is positioned below the bobbin 8 and the mounting table 13 is moved by the lifter.
Is raised until it contacts the bobbin 8. Then, by moving one of the support shafts 6 outward, the two support shafts 6 and 7 are extracted from the bobbin 8 and the bobbin 8 is mounted on the mounting table 13.

After that, as shown in FIG. 3, the opening / closing body 20 in the horizontal position A is opened by driving the opening / closing motor 23 to bring it to the vertical position B. The mounting table 13 is slightly lowered to a position where the upper end of the flange of the bobbin 8 does not contact the arch 2 of the rotating body 3, the carriage 14 is moved to the front side, the mounting table 13 is raised to the floor line position, and the bobbin 8 is mounted. Replace.

The bobbin 8 is carried into the cradle 5 by moving the mounting table 13 in the front-rear direction and the up-down direction, and the opening / closing body 20 is closed to be in the horizontal posture A.
By moving one support shaft 6 inward,
The bobbin 8 is supported by both support shafts 6 and 7. If the stop position of the rotating body 3 is set to a position that does not interfere with the horizontal movement of the bobbin 8, the bobbin 8 can be replaced without being raised and lowered.

As described above, when the bobbin 8 is moved in the horizontal direction, a part of the cradle 5 is opened, so that it does not hinder the movement of the bobbin 8 and the conventional case shown by a one-dot chain line in FIG. In comparison, the amount of lifting and lowering of the bobbin 8 can be reduced. Therefore, it is not necessary to make the pit 11 deep, and it is not necessary to increase the stroke of the lifter.
The cost of foundation work and the cost of lifters can be reduced. In addition, the pit 11 can be made shallower, and the lift amount of the lifter can be reduced, so that the risk of a fall accident can be reduced and the safety can be improved.

Further, since the opening and closing body 20 is opened and closed in the vertical direction, there is no obstruction above, so that almost no space is required for opening and closing, and an increase in installation area can be prevented.

Next, another embodiment is shown in FIGS. Here, a part of the front side 5a of the cradle 5 is opened and closed in the horizontal direction. That is, an opening / closing body 31 that rotates around the longitudinal axis 30 is provided on the front side 5a, and one of the support shafts 6 is attached to the opening / closing body 31. The tip of the opening / closing body 31
It is engaged with the cradle 5 and is screwed.

According to this, the opening / closing body 31 can be opened by turning the handle 32 to release the screwing, and the opening / closing body 31 is opened to the front side as shown in FIG. The bobbin 8 is lowered to a position where the bobbin 8 does not come into contact with the cradle 5 or the rotating body 3, taken out from the cradle 5, and the bobbin 8 is replaced. In this case, the opening and closing force is smaller than when opening and closing in the vertical direction, so that the opening and closing can be easily performed manually.

The opening and closing of the opening and closing body 31 causes the support shaft 6 to approach and separate from the bobbin 8, so that there is no mechanism for moving the support shaft 6 forward and backward, and the support shaft 6 is engaged with the bobbin 8 in accordance with the opening and closing operation. The mechanism may be removed, and the mechanism can be simplified.

The present invention is not limited to the above embodiment, and many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, as shown in FIG. 7, the opening / closing body 20 is divided into two parts so that the opening / closing body 20 can be bent around the support shaft 6 and can hold a horizontal posture A and an opening posture C which is opened vertically and bent. It may be. In the open position C, the leading end of the opening / closing body 20 does not rise to a high position, so that no space is required.

Further, the bobbin changing device of the present embodiment may be applied to a double twisting and twisting machine.

[0028]

As is apparent from the above description, according to the present invention, when the bobbin is attached to and detached from the cradle, and the bobbin is moved in the axial direction and the vertical direction to carry in and out, a part of the cradle is used. Are opened and closed in a direction that does not hinder the movement of the bobbin, so that the cradle does not interfere with the bobbin and the bobbin can be easily moved.

Therefore, it is not necessary to move the bobbin largely so as not to interfere with the cradle, and it is not necessary to make the pit deeper or to increase the stroke of the lifter, so that the cost of foundation work and the cost of the lifter can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a main part of a bobbin changing device according to an embodiment of the present invention.

FIG. 2 is a plan view of the same cradle.

FIG. 3 is a diagram showing a state when the bobbin is replaced.

FIG. 4 is a plan view inside a cradle of a bobbin changing device according to another embodiment.

FIG. 5 is a front view of the same.

FIG. 6 is a diagram showing a state when the bobbin is replaced.

FIG. 7 is a configuration diagram of a main part of a bobbin changing device according to another embodiment.

FIG. 8 is a plan view of a conventional twisting machine.

FIG. 9 is a front view of the same.

FIG. 10 is a sectional view of the same.

[Explanation of symbols]

 5 Cradle 6, 7 Support shaft 8 Bobbin 20 Opening / closing body 21 Horizontal axis A Horizontal posture B Vertical posture

Claims (1)

[Claims] A bobbin is rotatably supported in a cradle of a twisting machine via a pair of support shafts, and the bobbin is attached to and detached from the cradle by moving the support shaft forward and backward. In a bobbin exchange device that carries out loading and unloading by moving in a direction and up and down, a part of the cradle including one support shaft is opened and closed in a direction that does not hinder the movement of the bobbin. Bobbin changing device.