JPH045507Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a bobbin for winding a filament, and particularly to a glass fiber filament suitable for use in so-called waist winding prior to winding. This invention relates to a winding bobbin.

[Prior Art] When winding a material in the leading part of a filament to be wound which is different from that in the succeeding part, a material is provided adjacent to the bobbin prior to winding it onto the bobbin. It is preferable to wind the dissimilar leading portion onto an auxiliary winding tool called a waist spool, which has been set aside, and then wind the subsequent portion onto the bobbin.

Winding such a foreign part onto a waist spool is usually called waist winding.

For example, when manufacturing a glass fiber rubber cord, the strands are coated with an adhesive (such as a resorcinol formalin latex liquid), dried, and then twisted into yarn. Then, as shown in FIG. 7, a rubber-based coating liquid is applied and heat treated through a cure furnace 2 to form a rubber cord.
Wind onto bobbin 3.

In this case, when the amount of winding onto the bobbin 3 reaches a predetermined amount, the thread-like body (yarn) 1 stops running, is replaced with a new bobbin, and then winding is restarted.

During this running stop, the filament 1 in the cure furnace 2
Since the bobbin is kept in a heated state, a filament (rubber cord) that has been subjected to excessive heat treatment (overcure) is initially wound onto a new bobbin.

Therefore, when using this bobbin-wound rubber cord, the overcure part must be removed, but if the overcure part is difficult to identify, there is a risk that the overcure part may also be used. There is.

To perform winding excluding the overcure portion, waist winding as described above may be performed.

[Problems to be solved by the invention] However, when a conventional double-flange type bobbin is used, the filament moves from the waist spool over the bobbin flange to the bobbin body. As shown in FIG. 5B, a gap was created at the corner of the flange 5 and the circumferential surface of the body 4, where the filament 1 was not wound, and the winding was likely to be disordered.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a double-flange type bobbin with a groove crossing at least one flange, and the glass fiber thread is attached to the waist spool. When transferring from the bobbin body to the bobbin body, the glass fiber thread is passed through this groove, and thereby the glass fiber thread is also wound around the corner of the bobbin body and the flange, so that a predetermined amount of the glass fiber thread can be wound. This is what I did. In the present invention, the direction in which the groove extends in the direction connecting both side surfaces of the flange is a direction that obliquely intersects the axial direction of the body at an angle of 35 to 75 degrees. Moreover, this groove is provided deeply so as to reach the circumferential surface of the body, and has a width of 2 to 8 mm over its entire depth.

That is, the present invention provides a bobbin 3 for winding a lath fiber thread, which is provided with flanges 5 and 6 integrally with a body 4, as shown in the drawings.
A groove 7 extends in a direction connecting the side surface of the flange 5 on the body 4 side and the side surface on the opposite side of the body 4.
It is characterized by being provided at a specific angle, depth, and width.

The structure of the present invention will be explained in more detail below.

In the present invention, the bobbin is a double-flange type bobbin having flanges at both ends of the body. Torso 4
There are no particular limitations on the length and diameter of the flange, or the diameter and thickness of the flange.

Note that the body portion 4 is usually provided with a shaft hole 8 into which a shaft of a winding device is inserted.

Plastic, metal, etc. can be used as the material for the bobbin, but plastic is preferred because it is lightweight, inexpensive, and has good workability.

The groove 7 provided in one flange 5 is provided so as to be oblique to the trunk axis direction (direction connecting both sides of the flange 5), and is formed by forming a glass fiber filament (hereinafter simply referred to as a "filament body"). ) is transferred from the waist spool to the bobbin body 4 so that the filament can smoothly pass through this groove. The intersection angle θ between the direction of the groove and the direction of the trunk axis is 35 to 75 degrees, particularly 45 to 65 degrees.

The width of the groove 7 is between 2 and 8 mm over its entire depth in order to reduce the resistance when the filament passes through.
Let it be mm.

In addition, by providing the groove 7 deeply so as to reach the circumferential surface of the body, the filament can be wound evenly at the corner of the flange and the body.

In the present invention, it is sufficient to provide one groove 7 on the flange, but two or more grooves 7 may be provided.

Furthermore, it is sufficient to provide the groove only on one flange 5. The outer end surface of the other flange 6 is usually provided with an adapter hole 9c into which a bobbin fixing pin of a winding device is fitted. However, if the bobbin can be inserted into the shaft of the winding device from either side, it is preferable to provide grooves in both flanges.

The filament winding bobbin of the present invention can be used not only for glass fiber rubber cords but also for winding various glass fiber filaments such as ordinary glass fiber yarn.

[Function] After the leading part of the filament is wound onto the waist spool, the trailing part of the filament is transferred to the body, and then when winding is performed on the bobbin body, the filament is attached to the flange 5 on the body. Groove 7 provided in the axial direction and oblique direction
can be passed through very easily. Moreover, this groove is provided deeply so as to reach the circumferential surface of the body, and has a width of 2 to 8 mm over the entire depth. Therefore, unlike the conventional example, the filament does not go over the circumferential surface of the flange 5, and the filament is also wound around the corner between the flange and the circumferential surface of the body, thereby preventing winding irregularities.

Further, foreign portions such as overcure portions at the beginning of the filament can be easily removed and wound.

[Example] Examples will be described below.

FIG. 1 is a front view of a filament winding bobbin according to an embodiment of the present invention, FIG. 2 is a left side view thereof, and FIG. 3 is a right side view thereof.

As shown in the figure, flanges 5 and 6 are provided at both ends of the body 4.
is provided integrally with the body 4, and one flange 5 is provided with a groove 7 extending in a direction oblique to the axial direction of the body 4 so as to connect both end surfaces of the flange 5. It is set up.

As shown in FIG. 2, in this embodiment, the groove 7 has a depth that reaches the circumferential surface of the body 4, and a width of 2 to 8 mm over the entire depth. .

A shaft hole 8 into which a shaft of a winding device is inserted is bored in the body portion 4 . This shaft hole 8 has a slightly smaller diameter at both ends than at the center.

In this embodiment, the flange 6 is hollow, and a ring-shaped plate 9 is fitted so as to close this hollow part. In addition, the center hole 9 of the plate 9
A short cylindrical part 9b is integrated with the plate 9 in the part a.
is erected, and this cylindrical portion 9b is fitted into the flange 6 side of the shaft hole 8. The outer diameter of the cylindrical portion 9b is equal to or slightly larger than the inner diameter of the shaft hole 8, and the inner diameter of the cylindrical portion 9b is the same as the inner diameter of the small diameter portion of the shaft hole 8 on the flange 5 side. Therefore, the shaft of the winding device inserted into the shaft hole 8 is
The small diameter portion of the shaft hole 8 on the flange 5 side is in contact with the inner peripheral surface of the cylindrical portion 9b, and is configured to support the entire bobbin.

Further, as shown in FIG. 3, the plate 9 has a pin hole 9c into which a pin provided on the winding device is inserted.
are drilled at equal radius quarter positions.

FIG. 4 is a diagram showing an example of how the bobbin shown in FIGS. 1 to 3 is used.

10 is the main body of the winding device, which includes a rotating shaft 11;
It has a shaft 12 coaxially protruding from the side end surface of the rotating shaft 11, and pins 13 provided at equiradial quarter positions around the shaft 12. The shaft hole 8 of the bobbin is inserted into the shaft 12, and the pin 13 is fitted into the pin hole 9c of the flange. Then, a truncated conical waist spool 14 is fitted from the tip of the shaft 12 so that its narrow diameter side contacts the bobbin 3. This waist spool 1
4 is made of a soft material such as rubber, and the hole for inserting the shaft has a slightly smaller diameter than the shaft 12. Therefore, the waist spool 14
By pushing into the shaft 12, the bobbin 3
can be fixed by pressing the side surface of the rotary shaft 11 against the end surface of the rotating shaft 11.

Reference numeral 15 denotes a guide rod that guides the filamentous body 1, and is installed in the winding device 10 so as to be movable in the axial direction of the shaft 12.

In the winding device configured as described above, when winding the filament 1, the guide rod 15 is shifted to the waist spool 14 side, and the tip of the filament 1 is guided by the guide rod 15. At the same time, the waist spool 14 is used to wrap the waist.

After the foreign part at the leading end of the filament 1 is wound onto the waist spool 14, the guide rod 15 is shifted toward the winding device main body 10 side. Then, the filament 1 moves through the groove 7 of the flange 5 toward the bobbin body 4 and is wound around the circumferential surface of the body 4.

After the winding amount of the filament 1 onto the bobbin 3 reaches a predetermined amount, the winding device 10 is stopped, the unwound filament is cut, and the bobbin 3 is replaced with a new bobbin.
After waist winding onto the waist spool 14 in the same manner as described above, winding onto a new bobbin 3 is performed.

FIG. 5A is a sectional view illustrating the winding condition when the bobbin according to this embodiment is used. As shown in the figure, if the bobbin of this embodiment is used, the filament 1 can also be wound around the corner of the flange 5 and the circumferential surface of the body 4.
A predetermined amount of filament is wound up. Furthermore, it is easy to align and wind the filamentous body, and there is almost no disturbance in the winding as in the conventional example.

The dimensions of the bobbin were selected as shown in Figure 6 (unit: mm), and a glass fiber rubber cord with an apparent diameter of 1.5 mm was wound at a winding speed of 5 to 50 m/min. It was possible to perform winding in good condition.

[Effects] As detailed above, the thread-like material winding bobbin of the present invention has a groove in the flange of the bobbin for passing the thread-like material in a direction oblique to the axis of the body, and extends to the circumferential surface of the body. 2-8mm across the entire depth as it reaches
When performing waist winding to remove foreign parts at the leading end of the filament, the filament can be easily wound around the corner between the flange of the bobbin and the circumferential surface of the body. There is no winding disorder or the like.

Further, in the present invention, since a double-flange type bobbin is used, the product wound on the bobbin is sufficiently protected, and a highly reliable wound product can be provided.

[Brief explanation of the drawing]

Fig. 1 is a front view of a bobbin according to an embodiment of the present invention, Fig. 2 is a left side view thereof, Fig. 3 is a right side view thereof,
4 is a diagram showing a state in which the bobbin of FIG. 1 is attached to the winding device 10, FIG. 5 is a cross-sectional view showing a state in which the filament is wound onto the bobbin, and FIG. 6 is a diagram showing an example of the dimensions of the bobbin. , FIG. 7 is a schematic diagram showing the manufacturing process of a glass fiber rubber cord. 1... filamentous body, 3... bobbin, 4... trunk,
5, 6...Flange, 7...Groove, 8...Shaft hole, 9
... Ring-shaped plate, 10 ... Winding device main body,
11... Rotating shaft, 12... Shaft, 13... Pin, 14... Waist spool, 15... Guide rod.

Claims (1)

[Scope of Claim for Utility Model Registration] A bobbin for winding glass fiber filament comprising flanges provided integrally with the body at both ends of the body around which the glass fiber filament is wound: At least one of the flange is provided with a groove extending in a direction connecting the side surface of the flange on the body side and the side surface opposite to the body, and the groove extends in the direction connecting these both side surfaces of the flange. The direction in which the groove lies is obliquely intersecting the axial direction of the body at an angle of 35 to 75 degrees, and the groove reaches all the way to the circumferential surface of the body.
A bobbin for winding a filament, characterized in that it has a width of 2 to 8 mm over its entire depth.