JP2950230B2 - Braider bobbin residual yarn processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braider bobbin residual yarn processing apparatus, and more particularly to a braider bobbin residual yarn processing apparatus which is effective for prepreg yarn residual yarn processing.

[0002]

2. Description of the Related Art Heretofore, there has been no apparatus for unwinding and processing the residual yarn of a bobbin of a blader. Therefore, the worker unwound and processed it manually.

[0003]

However, in the above-described manual bobbin remaining thread processing of the braider,
The time required for the yarn unwinding operation is time consuming, and the operating efficiency is deteriorated, and the cost is increased. As a method of unwinding the remaining yarn of the bobbin of the blader, a method of unwinding the yarn by air injection such as suction may be considered. However, there is a problem in that it requires certainty and requires an air injection device. In addition, since the braider bobbin has flanges at both ends, the remaining yarn cannot be pulled out in the direction of the central axis, and there is also a problem that cutting with a cutter or the like takes a lot of trouble.

SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional drawbacks described above and to provide a residual yarn device for a braider bobbin capable of reliably nipping and unwinding the residual yarn and automating the processing of the residual yarn of the blade bobbin. To provide.

[0005]

To achieve the above object, according to solve the ## present invention comprises a stand that rotatably supports a blanking Raiders bobbin, a pair of rollers which nip the residual thread is released by rotating the A pair of rollers
To prevent winding of the thread, a number of grooves approximately parallel to the central axis
While holding the nip with a predetermined force.
An elastic member. Also, the pair of rollers
Attach one roller to the drive shaft of the motor and
The other roller is attached to the shaft at the end of the arm
And place it above the one roller.
Between the approximate center of the arm and the machine base as the elastic member
Are provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a residual yarn treating device for a blade bobbin according to the present invention. As shown in the figure, the remaining yarn processing device 1 for the blader bobbins 8 and 9 includes a base 5, a stand 6 and 7 erected on the base 5, yarn guides 10 and 11, and a base 5. A motor 4 disposed in
It mainly comprises a roller 2 attached to a shaft 4 a of a motor 4 and a roller 3 pressed against the roller 2.

The stand 6 has a slightly tapered shaft at the tip end and a base 6a at the base. The same applies to the stand 7. A braider bobbin 8 is mounted on the stand 6. A braider bobbin 9 is similarly inserted into the stand 7. Blader bobbins 8 and 9 are shafts 8
c, 9c and flanges 8a, 9 at both ends of the shaft portions 8c, 9c.
a and flanges 8b and 9b. Shaft 8c,
9c has a residual yarn. Downstream of the stands 6, 7, pins 10, 11 serving as thread guides stand on the base 5. Since these are thread guides, their surfaces are smooth. A motor 4 is mounted on the base 5 on the downstream side of the yarn guide. The grooved roller 2 is attached to a drive shaft 4 a of the motor 4. The peripheral surface of the roller 2 is provided with a number of grooves 2a substantially parallel to the central axis.

[0008] A roller 3 is located above the roller 2. Similarly to the roller 2, a large number of grooves 3 a substantially parallel to the central axis are provided on the peripheral surface of the roller 3. The roller 3 is rotatably attached to a shaft 13a at the end of the arm 13. The shaft 13b is attached to the other end of the arm 13. The shaft 13b is rotatably attached to the base 5 by a member 14 provided on the base 5. A tension spring 12 is hooked between a substantially central portion of the arm 13 and the base 5. Thus, the roller 3 is pressed against the roller 2. Roller 3 is pressed against roller 2
If the force is too strong, the remaining yarns Y1 and Y2 are cut by the engagement of the rollers 2 and 3 when the remaining yarns Y1 and Y2 are nipped and conveyed. On the other hand, if the force is too strong, the load torque of the motor 4 will result, and the transport force will decrease. Roller 3
If the force applied to the roller 2 is too weak, the yarns Y1 and Y2
When force nip weakened, it is conveyed to the yarn Y1, Y2
May be slipped and not conveyed. As described above, the tension springs 12 cause the remaining yarns Y1, Y
2 is not cut or the load torque of the motor 4 is not set, and the predetermined spring constant is set so that the roller 3 is pressed against the roller 2 with an appropriate force for reliably nipping the yarns Y1 and Y2.

Next, the operation of processing the residual yarn of the braider bobbin will be described. The braider bobbins 8 and 9 used by the braider and in the remaining thread state are set on the stands 6 and 7, respectively. The remaining yarn ends of the set bobbin are alternately hung between the yarn guides 10 and 11 and are sandwiched between the rollers 2 and 3. The yarns Y1 and Y2 are appropriately applied to the pair of rollers 2 and 3 by the tension spring 12 as described above.
Nip with great power .

First, the roller 2 is rotated in the direction of arrow 20 by the drive of the motor 4. Along with that, Roller 3
Rotates in the direction of arrow 21. With the rotation, the yarns Y1 and Y2 are pulled in the directions of arrows 24 and 25. Then, the blader bobbin 8 rotates in the direction of arrow 22 and the blader bobbin 9 rotates in the direction of arrow 23. Accordingly, blader bobbin 8 and blader bobbin 9
The remaining yarn is unwound. By the above-mentioned tension spring 12,
Since the yarns Y1 and Y2 are nipped by the pair of rollers 2 and 3 with an appropriate force , the yarns Y1 and Y2 are reliably nipped and conveyed, and the remaining yarns of the braider bobbins 8 and 9 are unwound.

The unwound yarns Y1 and Y2 are conveyed in the directions of arrows 26 and 27, respectively.
Is processed. Since the yarn Y1 and the yarn Y2 are sandwiched between the grooved roller 2 and the grooved roller 3, the problem that the yarn Y1 and the yarn Y2 are wound around the roller 2 or the roller 3 does not occur. Further, the two yarns of the bobbin 8 and the bobbin 9 set on the stand 6 and the stand 7 are simultaneously unwound by the pair of rollers 2 and 3. As described above, when the slightly remaining fiber is unwound, the blader bobbins 8 and 9 are inserted into the stands 6 and 7, and are unwound while feeding the yarn by the two nipped rollers 2 and 3. Go. The remaining yarns Y1 and Y2 nipped by the two rollers 2 and 3 are collected in a container or the like (not shown) provided downstream of the rollers 2 and 3, and are discarded.

Incidentally, the pair of rollers for nipping the yarn described in the above-mentioned embodiment usually has a problem that the yarn is wound around the roller with a flat roller made of rubber, iron, aluminum or the like. Therefore, the use of the grooved roller prevents such a problem as the curling. Since the grooved rollers are used for both of the pair of rollers for nipping the yarn, the problem of curling is more effectively prevented. In particular, in the prepreg yarn, the grooved roller is effective for the problem of curling.

Further, in the above-described embodiment, the case has been described in which the yarns of the two blade bobbins are supplied to the pair of rollers for nipping the yarn. However, the yarns of the multiple blade bobbins are supplied to the pair of rollers. Of course,
The present invention can be similarly applied, and the working efficiency can be increased.

[0014]

As described above, according to the first aspect of the present invention, it is possible to perform the remaining thread processing of the braider bobbin by automation without requiring any manpower. Therefore, the time required for unwinding the yarn can be reduced, and the cost can be reduced. Further, there is no problem that an air injection device needs to be provided.

The roller has a number of grooves substantially parallel to the central axis.
The contact area between the remaining yarn and the roller is reduced,
There is no problem that the residual yarn is wound up on the roller and is wound on the roller. In particular, it is effective for a yarn called prepreg yarn in which carbon and resin are mixed.

When the remaining yarn is nipped and conveyed, the yarn is not cut by the engagement of the pair of rollers, the load torque of the motor does not occur, and the yarn does not slip and is not conveyed. The pair of rollers are pressed against each other with a predetermined force . Thereby, the remaining yarn is reliably nipped and conveyed, and the remaining yarn of the braider bobbin can be surely unwound.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a residual yarn processing device for a braider bobbin according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Residual thread processing device 2 Roller 2a groove 3 Roller 3a groove 4 Motor (drive source) 6 Stand 7 Stand 8 Blader bobbin 9 Blader bobbin 12 Tension spring

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65H 73/00 B65H 51/10 B65H 54/86 D05B 59/00

Claims (2)

(57) [Claims] 1. A stand for rotatably supporting a blade bobbin, and a pair of rollers for nipping and rotating and releasing the remaining yarn, wherein the pair of rollers is a yarn to the roller.
Has a number of grooves approximately parallel to the central axis to prevent
To perform the nip with a predetermined force.
An apparatus for treating residual yarn of a braider bobbin comprising the elastic member of (1) . 2. A driving shaft of a motor, said pair of rollers being
One roller is attached to the machine, and it is freely rotatable to the machine base.
Attach the other roller to the shaft at the end of the arm
Above the roller, and the substantially central portion of the arm and the
A tension spring as the elastic member is provided between the frame and the machine base.
The apparatus for treating residual yarn of a braider bobbin according to claim 1, wherein: