JPS6122928Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bobbin juxtaposed type continuous winding device for wire.

When winding the core wire onto the take-up bobbin, it may be necessary to take out an appropriate length of the wire at the beginning of winding (hereinafter referred to as the bottom wire). The lower end wire is wound around the dummy bobbin to an appropriate length. In a continuous wire winding device equipped with such a winding bobbin, when the wire is wound from the dummy bobbin to the main bobbin, the wire may break or be pulled due to excessive tension due to a sudden change in wire speed. A structure that does not cause elongation is required. Therefore, the present applicant has proposed a bobbin juxtaposition type continuous wire winding device having such a structure (Japanese Patent Application No. 129440/1982). However, in the device according to this application, the mechanism for switching the core wire from a fully wound bobbin to an empty bobbin is still complicated, and since a core wire passage for switching is once formed at the time of switching, the wire is not fully wound. The winding may be concentrated in one place on the bobbin, and the amount of winding increases especially at high wire speeds, which has the disadvantage of causing the winding to collapse.

As mentioned above, this device is equipped with a dummy bobbin for winding the lower end wire, and is used in a bobbin juxtaposition type continuous winding device that is equipped with a dummy bobbin for winding the lower end wire and allows for smooth winding transfer from the main bobbin to the dummy bobbin. This simplifies the switching mechanism to the bobbin and prevents winding from collapsing. Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

Configuration (Figures 1 and 2) The illustrated device has a pair of winding bobbins 1, 1' and mechanisms attached thereto side by side, and a mechanism common to both bobbins 1, 1'. is arranged. Both bobbins 1, 1' and their attached mechanisms are arranged in opposite directions. Note that since the configurations of both winding bobbins 1 are the same, the configuration will be explained only for one winding bobbin 1.

The winding bobbin 1 consists of a main bobbin 2 and a dummy bobbin 3, and a winding bobbin shaft 4 is inserted through the main bobbin 2. The dummy bobbin 3 is for winding the lower end of the core wire A, and its winding drum diameter is approximately equal to that of the main bobbin 2. The drive shaft 5 is supported by a bearing block 6, which is supported by a frame 7. The winding bobbin shaft 4 described above is integrally coupled with a drive shaft 5. A dummy bobbin 3 and a ratchet wheel 8 are inserted into and fixed to the drive shaft 5 . The peripheral edge of the ratchet wheel 8 is slightly warped outward, and a pawl 9 is provided in the warped portion.

An arcuate wire winding guide 11 is provided above the collar 10 on the dummy bobbin 3 side of the main bobbin 2 along the outer periphery of the collar 10. One end of this guide 11 is connected to a rod 13 of a drive device 12 composed of an air cylinder or the like, and is moved in the axial direction of the drive shaft 5 in the range from the upper part of the collar 10 to the upper part of the dummy bobbin 3. Also, the tip 14 of this guide 11
(See Figure 2) is bent inward so that the core wire A can be easily rolled. Note that the positional relationship of the tip portion 14 with respect to the collar 10 will be described later.

The tip of a wire winding guide arm 15 extends from the upper part of the guide 11 in a direction perpendicular thereto. The guide arm 15 is bent horizontally at 90 degrees in the middle and is fixed to a rotating ring 16 fitted on the outer periphery of the bearing block 6 coaxially with the drive shaft 5. The rotating ring 16 is partially provided with a gear 17 which meshes with a small gear 19 rotated by a motor 18 .
The rotation causes the guide arm 15 to move from one end of the guide 11 to the other end.

The above is an explanation of the bobbins 1, 1' and the mechanisms attached to them.
The configuration that functions in common to the functions of the following will be explained.

A traverser roller 20 is provided above both bobbins 1, 1' to uniformly distribute the core wire A onto these winding drums. This roller 20 can freely move in a direction perpendicular to the bobbin shaft 4 and in a direction along the bobbin shaft 4. Also, both bobbins 1 and 1'
A line guide rod 21 having a tip bent upward at 90 degrees is provided between the two. The wire shifting guide rod 21 is moved back and forth parallel to the drive shaft 5 by a drive device 22 such as an air cylinder, and is adapted to engage with the core wire A when the core wire A is wound as will be described later.

As mentioned above, the orientations of both bobbins 1 and 1' are different by 180 degrees, but one bobbin 1
Or the collar 23 provided at the tip of 1' and the ratchet wheel 8 on the other side.
In other words, one dummy bobbin 3 is set in a positional relationship corresponding to the other main bobbin 2, respectively.

The difference between the configuration described above and the prior art described above is that in the case of the prior art, both bobbins 1 and 1' were oriented in the same direction, but in the case of this invention, they are oriented in opposite directions, and The dummy bobbin 3 on one side is in a positional relationship corresponding to the main bobbin 2 on the other side, and in the case of the prior art, three guide rods are provided between the bobbins 1 and 1', and these and the traverser roller 20 are connected. Whereas the switching of the core wire A was performed through complicated control, in this invention, the switching can be performed using a simple structure in which a single wire shifting guide rod 21 is provided.

Function Next, the function of the above device will be explained. 1 and 2 show a state in which the traverser roller 20 is reciprocated in parallel with the bobbin shaft 4, and the core wire A is being wound up while being uniformly distributed on the winding drum of the main bobbin 2 of the bobbin 1'. . In this state, the wire winding guide 11 is retracted to the upper part of the dummy bobbin 3, the wire shifting guide rod 21 is retracted the most, and the guide arm 15 is located at one end of the guide 11. Before the main bobbin 2 reaches a fully wound state, the drive shaft 5 of the empty bobbin 1 is driven to rotate the bobbin 1. The empty bobbin 1 is rotated at a rotation speed n≈v/πD, where D is the diameter of the main bobbin 2. However, n is the rotational speed, v is the linear velocity, and π is the constant of pi. That is, the winding drum is rotated so that the circumferential speed (n×πD) is approximately equal to the linear speed v. In addition,
The empty bobbin 1 is rotated in the opposite direction to the fully wound bobbin 1'. The operation when switching the core wire A from the above state to the empty bobbin 1 side is as follows.

(1) (See Figures 3 and 4) Move the guide 11 on the empty bobbin 1 side onto its collar 10, and move the traverser roller 20 to the normal winding position (see Figures 1 and 2). ) to empty bobbin 1
Move the core wire A over the dummy bobbin 3 and move it to position B beyond the guide 15.
make contact with the winding drum. In this case, if the traverser roller 20 is moved within the range of the inner width of the dummy bobbin 3, the core wires A are distributed on the fully wound bobbin 1' side, and it is possible to prevent them from becoming partially piled up.

(2) (See Figures 5 and 6) From the above state, move the traverser roller 20 to the ratchet wheel 8 side, bring the core wire A into contact with the surface of the ratchet wheel 8, and advance the wire shifting guide rod 21. Then, when the core wire A is engaged with this and pushed slightly in the advancing direction, the core wire A is engaged with the claw 9. Since the core wire A is engaged with the claw 9 in a clamped state, it does not come off easily.

(3) (See Figures 7 and 8) When the ratchet wheel 8 rotates while the core wire A is engaged with the pawl 9, if the core wire A is thin such as an optical fiber, it may be cut off or If it is thick, cut it with an appropriate cutter. In this way, the core wire A leading to the fully wound bobbin 1' is cut, and from now on, the empty bobbin 1
The core wire A is wound around the dummy bobbin 3 as a bottom wire.

(4) Winding action from the dummy bobbin 3 to the main bobbin 2 (see FIGS. 9 and 10) When the traverser roller 20 moves toward the main bobbin 2, the core wire A diagonally crosses the winding transfer guide 11. At this point, the motor 18 is driven and the guide arm 15 is moved toward the guide 1 as shown by the arrow in FIG.
1, the core wire A is pushed by the guide arm 15 and moves around the outer circumference of the guide 11,
It comes off from the tip 14, crosses it at a certain point on the outer periphery of the collar 10, and moves to the main bobbin 2.

In this case, the tip 14 of the winding transfer guide 11 is bent inward as shown in FIG. By forming it so that the core wire A engages with the collar 10, the point c where the core wire A engages with the collar 10 can be substantially determined on the path of the core wire A that is tangential to the winding drum. Therefore, the circumferential velocity v ₁ of the winding drum and the core direction velocity component v ₂ ' of the outer circumferential velocity v ₂ of the collar 10 can be made substantially equal.

This is because △ced∽△acb, △bcd∽△bgf, so if the radius of the winding drum is r ₁ and the radius of the guard 10 is r ₂ , then v ₂ = v ₁ × bc / bg = v ₁ × r ₂ /r ₁ Therefore, v ₂ ′=v ₂ ×ab/cb=v ₂ ×r ₁ /r ₂ =v ₁ Therefore, since the speed of the core wire A engaged with the outer periphery of the collar 10 does not change, the core There is no place where excessive tension is applied to line A.

(5) (See Figures 12 and 13) When the core wire A is transferred to the main bobbin 2, the core wire A temporarily passes through the gap between the guide 11 and the outer periphery of the collar 10, but the winding is completed. Since the guide 11 is later retracted to the position shown by the chain line in FIG. 2, the core wire A crossing the collar 10 is prevented from coming into contact with the guide 11.

(6) (See FIGS. 14 and 15) When the winding of the core wire A is completed, the traverser roller 20 returns to its original position and completes the series of winding steps. Thereafter, the traverser roller 20 moves back and forth to wind the main bobbin 2.

At this time, the wire shifting guide rod 21 remains advanced, and when the bobbin 1' on the left side reaches full winding, it retreats when switching the core wire A to the newly replaced empty bobbin on the right side. Core wire A
and engages the pawl 9 of the ratchet wheel 8. That is, the line shifting guide rod 21 performs only half-reciprocating motion, either forward or backward, when switching.

Effects This device is constructed as described above, in which a pair of winding bobbins are arranged side by side in opposite directions, the dummy bobbin of one bobbin is made to correspond to the main bobbin of the other bobbin, and the core wire is inserted between the two bobbins. A wire shifting guide rod is provided that moves forward or backward during switching, and the wire shifting guide rod engages the core wire when switching from a fully wound bobbin to an empty bobbin with a pawl provided on a ratchet wheel on the outside of each dummy bobbin. It is. Therefore, when switching from a fully wound bobbin to an empty bobbin, the tip of both main bobbins corresponds to the latter's dummy bobbin, so simply moving the traverser roller onto the latter's dummy bobbin completes the core wire switching path. and does not require any other mechanism to guide it. In addition, since the switching path for the core wire is created by moving the dummy bobbin, by moving the dummy bobbin to the bobbin axis shift as appropriate,
The core wire is not wound in a concentrated manner in one place during switching. Furthermore, since the wire shifting guide only needs to make half-reciprocation, either forward or backward, when switching the core wires, its drive mechanism is simple.

[Brief explanation of the drawing]

Figures 1, 3, 5, 7, 9, 12, and 14 are plan views in the winding state, Figures 2, 4, 6, and 8, respectively. Figure, 1st
0, FIG. 13, and FIG. 15 are cross-sectional views corresponding to the above-mentioned plan view, respectively, and FIG. 11 is an explanatory diagram of linear velocity. 1, 1'... Winding bobbin, 2... Main bobbin, 3
...Dummy bobbin, 8...Claw wheel, 9...Claw, 11...
...Rewinding guide, 15...Guide arm, 21
... Line guide rod.

Claims (1)

[Scope of utility model registration request] A pair of winding bobbins 1 and 1' each including a main bobbin 2 and a coaxial dummy bobbin 3 are arranged in parallel,
A bow-shaped wire winding guide 11 is provided at a required interval in the radial direction from the outer periphery of the collar 10 between the main bobbin 2 and the dummy bobbin 3 of each bobbin 1, 1' and curved along the outer shape of the collar 10. Set up and guide 11
A drive device 12 that moves forward and backward in the axial direction of each bobbin 2 and 3 is connected to one end, and the other end 14 is a free end, and a guide arm 15 is installed on the outer periphery of the guide 11 in a direction orthogonal thereto. The core wire is movable from one end to the other end, and the other end 14 of the guide 11 is located near an extension of the core wire A that is in contact with the winding drum of the main bobbin 2 and is being drawn in. In the continuous winding device, the winding bobbins 1 and 1' are arranged in opposite directions so that the other dummy bobbin 3 is located within the axial range of the main bobbin 2 of each bobbin 1 and 1'. A ratchet wheel 8 facing the collar 10 is provided at the end of each dummy bobbin 3 opposite to the main bobbin 2, and a ratchet wheel 8 is provided between the winding bobbins 1 and 1' in the axial direction. A bobbin juxtaposition type continuous wire winding device characterized by being provided with a freely adjustable wire shifting guide rod 21.