JPH0958929A - Traverse device in winder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out excellent traverse by preventing a wire from being reversed in another direction while the wire is moving in one direction. SOLUTION: A moving member 60 is freely fitted to a ball screw 51. A ball holding body 73 is reversibly provided on the moving member 60. Two balls 86, 87 are arranged before and behind the center of inversion. These two balls 86, 87 are rotatably interposed between a threaded groove 53 of the ball screw 51 and the ball holding body 73.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traverse device for a winding machine that winds wires such as electric wires and ropes.

[0002]

2. Description of the Related Art Conventionally, as a traverse device in the above-mentioned winding machine, there is a device as shown in FIGS.

In both figures, 101 is a reel for winding, which is rotated by appropriate means. 102 is support 103,10
A ball screw rotatably installed between the four
And a return groove 106, and a groove 107 that connects these at both ends.
Is engraved. The ball screw 102 is rotated by an appropriate means via a sprocket 108 fixed to the ball screw 102.

A moving member 109 is loosely fitted in the ball screw 102, and is guided by a guide shaft 110 so as to be movable in a vertical posture in the axial direction of the ball screw 102. As shown in FIG. 19, one ball 111 is provided on the inner surface of the moving member 109.
It is provided so as to be fitted in the groove 105 or 106 of No. 02, and the ball 111 is guided by the groove 105 or 106 by the rotation of the ball screw 102 so that the moving member 109 moves left and right.

Then, by the lateral movement of the moving member 109,
The wire rod 113 inserted into the guide member 112 provided for this is traversed.

[0006]

As described above, in the case of traversing the moving member 109 by fitting one ball 111 into the groove of the ball screw 102, for example, the ball screw 102 is indicated by an arrow B in FIG. Ball 1 rotating in the direction
19 is guided by the outward groove 105 in the direction of arrow A in FIG. 19, and while the moving member 109 is moving in the outward direction indicated by arrow B in FIG. When an abnormal load in the backward direction shown by the arrow C in FIG. 18 is applied, the ball 111 moves at the intersection 114 between the forward groove 105 and the backward groove 106 in the direction indicated by the arrow D in FIG.
That is, the movable member 109 may enter the return groove 106 and be reversed in the return direction C.

As described above, when the moving member 109 is reversed halfway, the winding state of the wire on the reel 101 becomes abnormal, and this phenomenon is likely to occur especially on both sides of the reel 101. Therefore, as described above, an object of the present invention is to provide a traverse device capable of preventing a moving member from being reversed during movement in one direction thereof and normally winding a wire on a reel. It is a thing.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a ball screw which is rotated in one direction and has a forward groove and a backward groove formed on its peripheral surface, and the ball screw and its shaft. Direction, a moving member fitted slidably in the direction, a wire rod guide member provided on the moving member, a ball holder provided on the moving member so as to be reversed in the forward groove direction and the backward groove direction, and the ball. And two balls provided in front of and behind the inversion center of the holding body, wherein the two balls are rollably interposed between the ball screw groove and the ball holding body. Is.

[0009]

As shown in FIG. 17, the reversing center (88) of the ball holder (73) provided on the moving member (60) is
Forward groove (53a) and return groove (53) of the ball screw (51)
When located at the intersection with b), two balls (8
6) and (87) are both the forward groove (53a) or the backward groove (5)
Located in 3b). Therefore, even if the wire rod (70) is subjected to an abnormal load in the other direction while the wire rod (70) is moving in one direction, the moving member (60) should be inverted about the inversion center (88) at the intersection. There is no.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention shown in FIGS. 1 to 17 will be described. Reference numerals 1 and 2 denote a pair of reel mounts arranged at right and left with a predetermined interval, and both reel mounts 1 and 2 are connected to each other by a connecting rod 3.

Reference numeral 4 denotes a mounting plate fixedly mounted on one reel mount 1, on which a bearing portion 5 is provided. Reference numeral 6 denotes a support plate which is arranged inside the one reel mount 1 and fixed to the reel mount side. The support plate 6 is provided in an upright state, and a bearing portion 7 is fixed to the upper part thereof. The axial direction of the bearing portion 7 and the bearing portion 5 is the left-right direction (the direction in which the reel bases 1 and 2 face each other), and the axial centers of the bearing portions 7 and 5 are located on the same axis XX. ing.

Reference numeral 8 denotes a driving member, as shown in FIG. 3 (b), a cylindrical shaft portion 9 and a disk portion 10 fixed to the inside thereof.
The first rotation connecting plate 11 is fixed to the inner surface of the disc portion 10. Further, the drive shaft 1 is provided on the outer side of the cylindrical shaft portion 9.
2 is fixed by welding W and protrudes. Further, a female screw 13 having an opening inward is formed at the axial center of the cylindrical shaft 9.

Then, as shown in FIG. 1, the cylindrical shaft portion 9 is rotatably fitted to the bearing portion 7, and the outer end portion of the drive shaft 12 is rotatably fitted to the bearing portion 5 to form a drive member. 8 is rotatably provided.

The first rotary connecting plate 11 is formed of a semi-circular plate like the dotted portion in FIG. 4 (a), and the straight surface which is the chord portion is the engaging surface 14. The inner side of the cylindrical shaft portion 9 is also cut out by a semicircle to form an engaging surface 9a flush with the engaging surface 14.

In FIG. 1, reference numeral 15 is a third sprocket fitted to the drive shaft 12, and a key 16 (see FIG. 3B) provided on the drive shaft 12 is fitted to the third sprocket 15. The rotation of the drive shaft 12 is integrally rotated.

Reference numeral 17 denotes a second sprocket fixed to the third sprocket 15 and a first sprocket of the electric motor 18.
A chain 20 is installed between the sprockets 19.
The electric motor 18 is fixed on the connecting rod 3 fixed between the reel bases 1 and 2.

In FIG. 1, 21 is the other reel mount 2
Is a mounting plate fixedly mounted on the bearing plate 22 and the bearing 22 is attached to the axis X
It is fixed with -X as an axis. 23 is a supporting member,
As shown in FIG. 3C, it is composed of a cylindrical shaft portion 24, a disc portion 25 fixed to the inside thereof, and a second rotation connecting plate 26 fixed to the inner side surface of the disc portion 25. Also, the cylindrical shaft portion 2
A through hole 27 is formed in the hole 4. The bearing member 23 is provided with the cylindrical shaft portion 24 rotatably fitted in the bearing portion 22, and the shaft center of the shaft hole 27 is located on the axis line XX.

The second rotary connecting plate 26 is formed of a semi-circular plate like the dotted portion in FIG. 4 (c), and the straight surface which is the chord portion thereof is the engaging surface 28. The inner side of the cylindrical shaft portion 24 is also cut out by a semicircle to form an engaging surface 24a flush with the engaging surface 28.

As shown in FIG. 3 (a), numeral 29 designates a shaft portion 30 made of a hollow tube having shaft holes 30a whose both ends are open, and both side plates 31, 32 on the outer peripheral portion of the shaft portion 30. The winding tube 33 fixed via the winding tube 33, the flanges 34 and 35 fixed on both sides of the winding tube 33, the disk 36 fixed to the outer surface of the right side plate 31, and the outer surface of the disk 36. The third rotation connecting plate 37 provided and the disc 38 fixed to the outer surface of the left side plate 32.
And a fourth rotation connecting plate 39 fixed to the outer surface of the disc 38.

The third rotary connecting plate 37 and the fourth rotary connecting plate 39 are each formed of a semi-circular plate like the dotted portions in FIGS. 4 (b) and 4 (d), and each of the chordal portions. Certain straight surfaces are engaged surfaces 40 and 41, respectively.

It should be noted that holes 36a, 38a and semi-circular cutouts 37a, 39a which coincide with the shaft hole 30a are formed in the central portions of the circular plates 36, 38 and the rotary connecting plates 37, 39, respectively. There is.

The lateral width of the reel 29 is such that when it is fitted between the drive member 8 and the support member 23 provided on the reel racks 1 and 2, and when it is fitted, the first rotary connecting plate 11 and the third rotary connecting plate. When the plate 37 is in the same vertical plane, the second rotary connecting plate 2
6 and the fourth rotation connecting plate 39 are set so as to be located in the same vertical plane.

Reference numeral 42 is a bearing shaft, and as shown in FIG. 3 (b), a handle 43 is fixedly provided at one end and a male screw 44 is provided at the other end.
As shown in FIG. 1, when the male screw 44 is inserted from the support member 23 provided on the other reel mount 2, the male screw 44 is provided on one reel mount 1 side as a drive member. The length is set so as to be screwed into the female screw 13 of 8.

In FIG. 1, 50 is a traverse device,
The ropes, electric wires, and other wire materials supplied to the reel 29 are traversed. Details of the traverse device 50 will be described with reference to FIGS.

Reference numeral 51 denotes a ball screw which is erected in parallel with the shaft portion 30 of the reel 29, and shafts 52 and 52a projecting from both ends thereof are supported by support plates 54 and 55 fixed to the reel mounts 1 and 2. Bearing unit 5 provided
It is rotatably supported by 6, 57.

The ball screw 51 is formed over the entire width of the reel 29. Also, the thread groove 53
Is formed by a forward groove 53a and a backward groove 53b having different inclination directions, and both ends of the both grooves 53a and 53b are communicated with each other by arcuate communication grooves 53c and 53d.

Reference numeral 58 is a sprocket fixed to the shaft 52, and a chain 59 is installed between the sprocket and the third sprocket 15, and the electric motor 18 synchronizes the rotation of the reel 29 with the ball screw 51. It is designed to rotate in one direction.

Reference numeral 60 denotes a moving member which is loosely fitted in the ball screw 51, and a bearing case 61 is fixedly provided on the lower portion thereof, and a linear ball bearing 62 is provided on the bearing case 61. Then, the linear ball bearing 62 is fitted to the guide shaft 63 which is horizontally stretched between the support plates 54 and 55, and the moving member 60 moves in the axial direction of the ball screw 51 while maintaining the vertical posture. There is.

Numerals 64 and 65 are a pair of roller shafts provided upright on the moving member 60 at a predetermined interval in the axial direction of the ball screw 51.
6, 67 are rotatably provided.

As shown in FIG. 5, reference numeral 68 denotes a lower guide roller which supports a wire rod 70 such as a rope which passes through the guide space 69 between the both side guide rollers 66, 67. As shown in FIG. At the front part of the guide rollers 66 and 67, the guide rollers 66 and 67 are installed in the axial direction of the ball screw 51.

Next, the moving member 60 and its accessories will be described with reference to FIGS. As shown in FIGS. 8 and 9, the moving member 60 is formed with a threaded through hole 71 into which the ball screw 51 is loosely fitted, and an oval hole 72 is formed in the center of the front surface. It is formed so as to reach the through hole 71.

Reference numeral 73 denotes a ball holder, which is shown in FIGS.
As shown in FIG. 3, the projection 74 and the square brim 75 are formed in an oval shape when viewed from the inside. Then, as shown in FIGS. 6 and 7, the ball holder 73 has its protrusion 74 fitted in the hole 72 formed in the moving member 60, so that the flange 75 can slide on the front surface 60a of the moving member 60. It is provided in abutment.

At the center of the front surface of the ball holder 73, a hemispherical concave portion 76 serving as a swing center is formed. In addition, as shown in FIG. 7, the inner surface 74a of the protrusion 74 is formed into an arc surface that is the same circle as the through hole 71 when it is fitted and fitted into the hole 72. Then, two ball holding recesses 77 and 78 are formed on the inner surface 74a at equal distances in the vertical direction with the recess 76 as the center. Both the recesses 77 and 78 are formed in a hemispherical recess into which half of the balls to be fitted in the thread groove 53 of the ball screw 51 are fitted.

Reference numeral 79 is a clasp, which is formed in a gate shape as shown in FIGS. 12 and 13, and a hemispherical concave portion 81 having the same shape as the concave portion 76 is formed in the central portion of the concave portion 80. The stopper 79 is arranged so as to straddle the front surface of the ball holder 73 fitted as described above, and the stopper holes 83 formed in both legs 82 of the stopper 79 and the stopper formed on the front surface of the moving member 60. The stopper 79 is moved through the hole 84 by the screw 85 to move the member 60.
Then, the ball holder 73 is attached.

In this assembly, first, the moving member 60
Is fitted into the ball screw 51 from its end, and when the ball holder 73 is fitted into the moving member 60 next, as shown in FIG. 14, the two balls 86 and 87 are recessed. 7
7, 78 and the screw groove 53 of the ball screw 51 are rotatably interposed, and when mounting the stopper 79, the ball 88 is inserted into both the recesses 7
It is rollably interposed between 6 and 81.

The oval shape of the protrusion 74 of the ball holder 73 is slightly smaller than the oval shape of the hole 72 formed in the moving member 60, as shown in FIG. The protrusion 74 of the body 73 swings about the ball 88 between a solid line position and a chain line position. That is, in FIG. 16, both balls 86 and 87 are
The line connecting the centers of the two can be turned in the inclination direction of the outward groove 53a of the screw groove 53 and the inclination direction of the return groove 53b.

In FIG. 5, 90 is a left switching pin, and 91 is a right switching pin, which are erected on the guide shaft 63. The engaging portion 92 of the left switching pin 90 hits the upper left portion of the ball holder 73 when the moving member 60 moves to the left end in FIG. 5 and the balls 86, 87 are located in the left communication groove 53d, The engaging portion 93 of the right switching pin 91 contacts the upper right portion of the ball holder 73 when the moving member 60 moves to the right end in FIG. 5 and the balls 86, 87 are located in the right communication groove 53c. Is set to.

Next, the operation of the above embodiment will be described.
When the electric motor 18 is started with the reel 29 assembled as shown in FIG. 1, the first sprocket 19, the chain 20, the second sprocket 17, and the third sprocket 1
The drive shaft 12 rotates in the direction of arrow A in FIG.
As a result, the drive member 8 fixed to the drive shaft 12 rotates in the same direction, and the first rotary connecting plate 11 also rotates in the same direction.

Then, the engaging surface 14 of the first rotary connecting plate 11
Comes into contact with the engaged surface 40 of the third rotation connecting plate 37,
The rotation connecting plate 37 is rotated in the same direction (direction of arrow A in FIG. 1). By this rotation, the reel 29 is rotated while being supported by the support shaft 42, and the wire rod 70 is wound up.

The second rotary connecting plate 26 and the fourth rotary connecting plate 39 also follow and rotate. Also, the third sprocket 1
The rotation of 5 causes the sprocket 58 through the chain 59.
Also, the ball screw 51 of the traverse device 50 rotates in one direction in synchronization with the rotation of the reel 29 to traverse the wire rod 70 wound on the reel 29. The operation of this traverse will be described later.

Next, an operation for removing the reel 29 from the reel mounts 1 and 2 after a predetermined amount of the wire 70 is wound on the reel 29 will be described. First, the worker makes the collar 34
Alternatively, 35 is gripped by hand and the reel 29 is rotated, and the third rotation connecting plate 37 and the fourth rotation connecting plate 39 are placed above the support shaft 42 in the upper half portion (states of FIGS. 4B and 4D). The first rotary connecting plate 11 and the second rotary connecting plate 26 are positioned in the lower half (state of FIGS. 4A and 4C) of the bearing shaft 42, and the engaging surfaces 14 and 28 and the engaged surface. 40 and 41 are made horizontal.

Next, the handle 43 is rotated to remove the male screw 44 of the handle 43 from the female screw 13 of the drive member 8, and the bearing shaft 42 is removed from the reel 29 and the reel mounts 1 and 2. At this time, the load of the reel 29 holding the wire rod 70 is also acting on the support shaft 42, but most of the load is the third load.
Through the rotary connecting plate 37 and the fourth rotary connecting plate 39, the engaging surfaces 14, 14 of the first rotary connecting plate 11 and the second rotary connecting plate 26,
It is supported by 28. Therefore, when the support shaft 42 is removed, the frictional resistance due to the load on the reel 29 becomes extremely small, and the reel 29 does not drop during the removal of the support shaft 42. Therefore, the bearing shaft 42 can be easily removed.

After removing the support shaft 42, the reel 29 is manually rotated in the direction of arrow A in FIG. Then, the rotary connecting plates 11, 26, 37, 39 also rotate, and the engaging surfaces 14, 28
And the engaged surfaces 40 and 41 are inclined. Due to this inclination, the third rotary connecting plate 37 and the fourth rotary connecting plate 39 are engaged with the engaging surface 1 of the first rotary connecting plate 11 and the second rotary connecting plate 26.
4 and 28 slide down, reel 29 traverse device 5
It falls on the floor opposite to 0. And the reel 29
Is rolled on the floor to the side opposite to the traverse device 50 and taken out.

Next, when assembling the empty reel 29 to the reel mounts 1 and 2, first, the drive member 8 and the support member 2 are first assembled.
3 by hand to position the first rotary connecting plate 11 and the second rotary connecting plate 26 in the lower half as shown in FIGS. 4 (a) and 4 (c), and their engaging surface 14 , 28 to a horizontal state.

Next, the third rotation connecting plate 37 and the fourth rotation connecting plate 39 of the reel 29 are set in FIGS.
As shown in (d), the reel 2 is positioned in the upper half.
9 is inserted between the reel mounts 1 and 2 from above, and the engaged surface 40 of the third rotation connecting plate 37 is the engagement surface 1 of the first rotation connecting plate 11.
4, the engaged surface 41 of the fourth rotary connecting plate 39 is placed on the engaging surface 28 of the second rotary connecting plate 26, respectively.

With the reel 29 thus supported, the support shaft 42 is inserted into the shaft portion 30 of the reel 29 from the bearing portion 22 side, and its male screw 44 is inserted into the female screw 13 of the drive member 8.
Screw into. As a result, as shown in FIG.
Are assembled in a state of being supported by the support shaft 42.

Next, the operation of the traverse device 50 will be described. As shown in FIG. 5, when the two balls 86 and 87 are fitted in the outward groove 53a, the ball screw 5
When 1 is rotated in the direction of arrow B in FIG. 5, both balls 8
6, 87 are guided by the outward groove 53a and move leftward in FIG. By this movement, the moving member 60 is moved leftward via the ball holder 73 holding the both balls 86, 87, and both side guide rollers 6 standing on the moving member 60.
6, 67 also moved to the left, and the wire rod 7 inserted between them
Move 0 to the left.

When the moving member 60 moves to the left end of the ball screw 51 and the upper ball 86 reaches the top of the left communication groove 53d, the upper left side of the ball holder 73 engages with the engaging portion 92 of the left switching pin 90. Hit the tip of. When the ball screw 51 further rotates, the ball 8 is formed by the communication groove 53d.
By the guidance of 6, 87, the posture of the ball holder 73 is inverted rightward about the ball 88. At this time, the upper part on the left side of the ball holder 73 contacts the tip of the engaging portion 92 of the left switching pin 90, so that the ball holder 73 is reliably inverted as described above.

After the balls 86 and 87 have entered the return groove 53b, when the ball screw 51 further rotates in the same direction as the above (direction of arrow A), the balls 86 and 87 are guided to the return groove 53b in a right inclined state. To the right in FIG. By this movement, the moving member 60 moves to the right through the ball holder 73, and both side guide rollers 66 and 67 erected on the moving member 60 also move to the right and are inserted between them. The wire 70 is moved to the right.

Both balls 86, 87 have a right side communication groove 53c.
When the ball 86 on the right side of the ball holding body 73 reaches the top of the communication groove 53c, the upper right side of the ball holder 73 contacts the tip of the engaging portion 93 of the right switching pin 90. Then, when the ball screw 51 further rotates, the balls 86 and 87 are guided by the communication groove 53c and the switching pin 90 on the right side is abutted, so that the ball holder 73 is inverted to the left with the ball 88 as the center.

By repeating the above, the wire rod 70 wound on the reel 29 is traversed. A state will be described in which, while the balls 86, 87 are rolling in the thread groove 53, the balls 86, 87 pass the intersection of the outward groove 53a and the backward groove 53b.

In FIG. 17, when both balls 86, 87 are both located in the outward groove 53a-2 below the intersection, the ball holder 73 is inclined in the same direction as the outward groove 53a. The center of rotation of the ball holder 73 (ball 8
8) reaches the midpoint of the intersection, the upper ball 86 fits into the outward groove 53a-1 above the intersection center as shown in FIG. 17B, and the lower ball 87 falls below the intersection center. The outward groove 53a-2 is fitted as shown in FIG. 17 (c). That is, the upper going groove 53a-1 and the upper returning groove 53b-1
The presence of the mountain portion 100 between them prevents the upper ball 86 from moving to the upper return groove 53b-1.
The presence of the mountain portion 100 between the lower outward groove 53a-2 and the lower backward groove 53b-2 prevents the lower ball 87 from moving to the lower backward groove 53b-2. Therefore, even if an external force that inverts the ball holder 73 acts on the ball holder 73, the ball holder 73 is prevented from being inverted.

Such inversion prevention is effected by the return groove 53b-1.
The same is done when the balls 86 and 87 pass through and 53b-2. Therefore, even when the moving member 60 is subjected to an abnormal load in the other direction due to the wire 70 while the moving member 60 is moving in one direction, the moving member 60 is prevented from reversing in the other direction. .

[0054]

As described above, according to the present invention, the moving member is reversed even when an abnormal load is applied to the wire rod while the wire rod is being moved in the forward direction or the backward direction at portions other than both ends of the ball screw. It never moves. Therefore, the wire rod can be satisfactorily traversed, and an irregular winding portion of the wire rod on the reel is not generated.

[Brief description of drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3A is a front sectional view of a reel in a state where main parts are separated, and FIG. 3B is a front sectional view of a drive member provided with an engaging surface.
(C) is a front sectional view of a bearing member provided with an engaging surface, and (d) is a front view of the bearing shaft.

FIG. 4A to FIG. 4D are side views of the rotary connecting plates.

FIG. 5 is a front sectional view of a traverse device.

FIG. 6 is a front view of a moving member portion in the traverse device.

FIG. 7 is a sectional view taken along line CC in FIG.

FIG. 8 is a front view of a moving member.

9 is a cross-sectional view taken along line DD in FIG.

FIG. 10 is a rear view of the ball holder.

FIG. 11 is a sectional view taken along line EE of FIG. 10;

FIG. 12 is a rear view of the clasp.

13 is a sectional view taken along line FF of FIG.

FIG. 14 is a cross-sectional view showing a fitted state of balls.

FIG. 15 is a side sectional view showing a guide roller portion of a wire rod.

FIG. 16 is an explanatory view showing a changed state of the ball holder.

FIG. 17 shows a relationship between a ball and a crossing portion of a thread groove in a ball screw, (a) is a front view, (b) is a sectional view taken along line GG of (a), and (c) is (a). ) HH line sectional view.

FIG. 18 is a front view showing a main part of a conventional structure.

FIG. 19 is a view for explaining the operation of the intersection portion in the conventional structure.

[Explanation of symbols]

51 ... Ball screw 53a ... Forward groove 53b ... Return groove 60 ... Moving member 66, 67 ... Wire guide member 73 ... Ball holder 86, 87 ... Ball 88 ... Ball at center of inversion

Claims (1)

[Claims] 1. A ball screw which is rotated in one direction and has a forward groove and a return groove formed on its peripheral surface, a moving member fitted to the ball screw so as to be slidable in its axial direction, and the moving member. A wire rod guide member, a ball holder provided on the moving member so as to be reversed in the forward groove direction and the backward groove direction, and two ball holders provided before and after the inversion center of the ball holder. A traverse device for a winder, comprising a ball and the two balls rotatably interposed between a ball screw groove and a ball holder.