JP2000143091A - Thread winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and securely mount and dismount a bobbin, push out a fully bobbin smoothly, perform easy repair when an elastic body of a bobbin fixing member is worn or broken, and correspond to high speed rotation without increasing a diameter of a bobbin holder. SOLUTION: An elastic body 10 is formed in an integral bobbin fixing member 5 by spacers 11, 12 positioned in both end parts in advance, the bobbin fixing members 5 are detachably conneeted, and a bobbin fixing member operation body 4 and its adjacent member are detachably connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding device used in a process for manufacturing a yarn such as a synthetic fiber.

[0002]

2. Description of the Related Art Generally, a yarn winding device used in a process of manufacturing a yarn such as a synthetic fiber is disclosed in
A bobbin holder for tightening a bobbin as described in Japanese Patent No. 115811 is provided.

The bobbin holder is installed corresponding to a bobbin fastening member operating body which reciprocates at a tip end and a bobbin to be detached, and a pressing force is applied in the axial direction of the bobbin holder in accordance with the movement of the bobbin fastening member operating body. An elastic body that is compressed and deforms in the radial direction when acted on; a spacer serving to maintain the elastic body at an appropriate distance and transmit the behavior and force of the bobbin fastening member operating body to the elastic body to deform the elastic body; It comprises a bobbin fastening member operating body, an elastic body, and a rotating cylindrical body on which a spacer is mounted.

In such a bobbin holder, the inner diameter of the package is reduced due to the tension of the yarn wound on the bobbin,
Further, since the weight is heavy, there is a problem that the package cannot be pushed out from the bobbin holder and can be pushed out smoothly to the receiving portion of the carry-out device.

Therefore, in order to enable the package to be pushed out of the bobbin holder smoothly, Japanese Patent Application Laid-Open No.
A bobbin holder for connecting an elastic body or a rubber ring for fastening a bobbin to a cylindrical member or a ring-shaped spacer serving as a spacer has been proposed as described in JP-A-17779 or JP-A-2-94864.

[0006]

However, even with these techniques, the problem has not been completely solved.

That is, in the case of a bobbin holder described in Japanese Patent Application Laid-Open No. 64-17779, a tension member which engages with a cylindrical member serving as a spacer is integrally formed on both sides of an elastic body which needs to be fixed to the bobbin. And the tension member is movably engaged with the L-shaped groove formed in the cylindrical member in the axial longitudinal direction of the bobbin holder. If there is an error in the L-shaped groove dimensions, even if the bobbin fastening member operating body moves to the tip side of the bobbin holder to release the tightening of the bobbin, all the elastic bodies return to the original state from the compressed state. There may not be.

In such a state, when the package is pushed out of the bobbin holder and transferred to the package receiving portion of the transport device, the inner peripheral surface of the bobbin comes into contact with the elastic body so that the package does not move to the receiving portion and the transfer operation is performed. Is interrupted, and it is almost impossible to completely eliminate the conventional problems.

Further, there is a gap between the engaging portions of the L-shaped grooves of the tension member and the cylindrical member, and a bobbin fastening member operating body is required to return all the elastic bodies from the compressed state to the original state. Has to be made very long, and it is almost impossible to apply such a configuration to a bobbin holder for tightening four or more bobbins.

In the case of a bobbin holder described in Japanese Utility Model Laid-Open No. 2-94864, a rubber ring and a ring-shaped spacer ring are integrally connected. In the former case, all rubber rings do not return from the compressed state to the original state even if the cap moves to the tip of the spindle because the cap, which is the body, and the rubber ring or ring-shaped spacer are not connected. Similarly, when the package is pushed out from the spindle shaft and transferred to the package receiving section of the transport device, the inner peripheral surface of the bobbin contacts the elastic member, and the transfer operation is interrupted without moving the package to the receiving section. Thus, there is a problem that it is almost impossible to completely eliminate the conventional problems.

According to the present invention, the bobbin can be easily attached and detached, the full bobbin can be pushed out smoothly, and a repair operation in the case where the elastic body of the bobbin fastening member is worn or damaged is performed. It is an object of the present invention to be able to easily perform the rotation and to cope with high-speed rotation without increasing the diameter of the bobbin holder.

[0012]

In order to solve the above-mentioned problems, a yarn winding device according to the present invention has an elastic body integrally formed with spacers previously positioned at both ends of the yarn winding device. A bobbin fastening member is formed, and the bobbin fastening member is detachably connected and connected,
The bobbin fastening member operating body and an adjacent member are detachably connected to each other.

Further, when the bobbin fastening member is connected and connected as described in claim 2, the interval between the elastic bodies for fastening the bobbin is a spacer dimension that maintains a predetermined value. The member adjacent to the bobbin fastening member operating body as described is a bobbin fastening elastic body or a spacer, the bobbin fastening elastic body as described in claim 4,
6. The configuration according to claim 5, wherein the relationship between the width dimension [W (mm)] and the thickness dimension [T (mm)] is W = (1.5 to 7) T, and the rubber hardness is 30 to 70 degrees. 7. A structure in which a spacer or a connection member of a bobbin fastening member is detachably connected to a rear end portion of such a cylindrical member, and the vicinity of the reciprocating bobbin fastening member operating body as described in claim 6. A configuration in which the value of the elastic modulus of the elastic body to be attached to the bobbin is at least equal to or higher than the value of the elastic modulus of the elastic body located further behind the bobbin. While connecting at least two sets of elastic bodies and spacers to be attached to the bobbin to make one unit,
Each of the units can be detachably connected.

[0014]

FIG. 1 is a schematic sectional view showing an embodiment of the structure of a bobbin holder in a yarn winding device according to the present invention. A bobbin holder 2 is rotatably mounted on a machine frame 1 or a turret member. ing.

The bobbin holder 2 includes a cylindrical member 3 rotatably mounted on the machine frame 1, a bobbin fastening member operating body 4 mounted on a distal end of the cylindrical member 3, and a cylindrical main body 3.
And a bobbin fastening member 5 inserted into the outer periphery of the bobbin.

The cylindrical member 3 is a rotatable base material that holds and rotates a bobbin 50 for winding the yarn, has a compressed air supply hole 6a, and is supported by a bearing 7 on a support portion 1a formed in the machine frame 1. A cylindrical body 8 having a shaft body 6 rotatably supported, a cylinder portion 8b at a distal end, a flange portion 8c at an outer peripheral rear end, and a rib 8a integrally attached to a distal end portion of the shaft body 6. The shaft 6 is driven to rotate by a motor 9.

As shown in FIG. 2, the above-mentioned bobbin fastening member 5 has an elastic body 10 on a ring made of synthetic rubber having a thickness of about 3 mm and a rubber hardness of 30 to 70 degrees, and is integrally formed on both sides thereof. The elastic body 11 for bobbin fastening is formed by the spacers 11 and 12 when the two bobbin fastening members 5 are connected to each other and formed by spacers 11 and 12 which are attached to each other.
Of the spacers 11 and 12 so that the distance between
Set the length dimension of. The elastic body 10 may be made of a material other than rubber, and a hard elastic body may be used at the front end, and a soft elastic body may be used at the rear end side. A material having a hardness of 70 degrees may be used. Further, the spacers 11 and 12 can be made of metal, non-metal, hard synthetic resin, or the like, but are preferably made of synthetic resin from the viewpoint of manufacturing the connection function section.

The bobbin fixing member 5 includes spacers 11, 1
The side surfaces of the elastic body 2 and the elastic body 10 may be connected by an adhesive 30. However, from the viewpoint of mass production, the rubber body is integrally molded with the spacer at the time of rubber vulcanization molding, or is integrally formed with the spacer member with an elastomer material. A manufacturing method such as injection molding is desirable.

The bobbin fastening member 5 manufactured as described above.
Is loosely fitted at a position where it is connected to the outer peripheral portion of the cylindrical body 8 and effectively acts to lock the bobbin.

The bobbin fastening member operating body 3 includes a piston portion 13a movably attached to a cylinder portion 8b formed at a distal end portion of the cylindrical body 8, and a cylindrical portion 13b loosely fitted to the outer peripheral portion of the distal end of the cylindrical body 8. The piston head 13 has a piston head 13 and a spring 14 mounted between the piston head 13 and the cylinder portion 8b so as to always press the piston head 13 toward the rear end of the cylinder 8. The piston head 1
Compressed air does not leak between the sliding portion 3 and the cylinder portion 8b by seal members 15 and 16 such as O-rings.

As shown in FIG. 3, the piston head 13 is manufactured by assembling the piston portion 13a and the cylindrical portion 13b with different members.

The cylindrical portion 13b of the piston head 13 and the bobbin fastening member 5 which is loosely fitted to the foremost portion of the cylindrical body 8 are connected.

Spacer 1 forming bobbin fastening member 5
Connections that can be removably connected to the side ends of the bobbin fixing members 1 and 12 where the elastic bodies 10 are not connected to the spacers 11 or 12 of the other bobbin fixing members 5 without any gap. Has functions.

The end of the spacer 11 is formed with an engaging claw 11a as shown in FIGS. 4, 5 and 6, and the end of the spacer 12 is formed with an engaging groove as shown in FIGS. 12
a is formed. The claw 11a is fitted from an inlet groove 12b connected to the groove 12a, and then connected by being rotated in a direction perpendicular to the axis.

At this time, the groove 12a is configured such that the groove width becomes narrower (tapered) as it goes forward, and there is no axial gap between the spacer 11 and the spacer 12 when the rotation stops. Have been. The number, width and thickness of the claws 11a can be set as appropriate.

When the member adjacent to the bobbin locking member 5 is the bobbin fastening member operating body 3 or the rear end of the cylindrical body 8, the respective members are smoothly connected to the bobbin fastening member 5. Corresponding coupling features are provided so that they can be engaged.

The piston head 1 with which the claw 11a is engaged
The engagement groove 13c formed in the cylindrical portion 13b of FIG. 3 is the same as the engagement groove 1c similar to the engagement groove 12c shown in FIGS.
3c and an inlet groove 13d are formed.

The operation of connecting the claw 11a of the spacer 11 to the engagement groove 13 is the same as the operation of connecting the bobbin fastening members 5 described above.

The connection is released by relatively rotating the engagement groove 13d of the piston head 13 and the claw 11a of the spacer 11 and moving in the axial direction when the position of the engagement groove 13d and the claw 11a coincide. It can be easily released by moving it away.

A compressed air supply pipe (not shown) is connected to the rear end of the shaft body 6. When compressed air is supplied to the compressed air supply hole 6 a, the compressed air is pushed to the piston head 13. The spring 14 is compressed by the action of the pressure, and the piston head 13 moves toward the tip of the bobbin holder 2.

Then, as shown in the lower half of FIG. 1, the bobbin fastening members 5 (5-1 to 5-7) integrated by the piston head 13 are pulled toward the front end of the bobbin holder 2. The elastic body 10 of the bobbin fastening member 5 in a state where the inner peripheral portion of the bobbin 50 is tightly attached to the outer peripheral portion of the cylindrical member 3 by deforming as shown in the upper half of FIG. It returns to its original shape as shown in half and the tightness is released.

At this time, the elastic body 10 is forcibly pulled by the bobbin fastening member operating body 4 and is in a state of extending in the longitudinal direction of the axis of the bobbin holder.

Therefore, when the full bobbin pushing-out device (not shown) is operated from the rear end of the bobbin holder, the full bobbin can always be smoothly discharged without any trouble.

Next, when the supply of compressed air to the compressed air supply hole 6a of the shaft body 6 is stopped and the supplied compressed air is released from the compressed air supply hole 6a, the piston head 13 is pressed by the spring 14 and the bobbin holder is pressed. Move toward the rear end.

Then, as shown in the upper half of FIG. 1, the bobbin fastening member 5 integrally connected by the piston head 13 is pushed toward the rear end side of the bobbin holder 2, and
The elastic body 10 of the bobbin fastening member 5 is deformed in the diametrical direction, so that the inner peripheral portion of the bobbin 50 and the outer peripheral portion of the cylindrical member 3 are tightly bonded.

The spacer 11 of the bobbin fastening member 5 located at the rearmost end of the bobbin holder 2 (bobbin fastening member 5-7)
Is desirably connected to the flange 8c of the cylindrical body 8, which is the cylindrical member 3, but may not need to be connected depending on conditions.

When the bobbin fastening member 5 having a small thickness as in the embodiment is used, the dimension occupied in the radial direction can be made extremely thin as compared with the conventional bobbin holder, and the critical rotation speed of the bobbin holder 2 can be reduced. Can be higher.

For example, when the inner diameter of the bobbin is set to 94 mm and the radial dimension of the bobbin fastening member 5 is set to 3 mm and the critical rotation speed of the bobbin holder 2 is calculated, the radial dimension of the bobbin fastening member 5 of the conventional system is 7 mm. By using the bobbin fastening member 5 having a thickness of 3 mm, the diameter of the cylindrical member 3 can be increased by 8 mm by using the bobbin fastening member 5 having a thickness of 3 mm. The allowable upper limit rotational speed of the bobbin holder can be increased by about 20%.

Assuming that the upper limit rotational speed of the conventional bobbin holder is 5500 m / min, the bobbin holder of the present invention can achieve 6600 m / min, which is a very large effect.

In the bobbin fastening member 5 of the present invention, the width of the elastic body 10 is desirably 1.5 to 7 times the thickness of the elastic body 10 in order to securely tighten the bobbin.

In the above embodiment, the bobbin fixing member 5
The spacers 11 and 12 each having a half length of the conventional spacer at both ends of the elastic body 10 (the combined length of the spacer 11 and the spacer 12 is the same as the length of the conventional spacer). Are connected integrally, and the spacer 1
1 and 12 are connected alternately.
It is possible to adopt a configuration in which the auxiliary spacers 1 and 12 are shorter than the predetermined length, and the connecting auxiliary spacers having the shortened length are provided therebetween. In this case, a claw is formed at one end of the auxiliary spacer and an engagement groove is formed at the other end.

In addition, if at least two sets of the elastic body 5 for attaching the bobbin and the spacer mounted on the cylindrical member 13 are integrally connected to each other to form a unit, and the unit is connected, four or more units are connected. Even in the case of a long bobbin holder to which the bobbin is tightly attached, the number of connecting portions can be reduced, the handling is easy, and the assembling and disassembling operations can be easily performed.

[0043]

According to the yarn winding device of the present invention, the elastic body is previously formed on the bobbin fastening member integrally with the spacers located at both ends thereof, as described in claim 1, and Since the bobbin fastening member is detachably connected and coupled, and the bobbin fastening member operating body and the adjacent member are detachably connected, the bobbin attaching / detaching operation can be easily and reliably performed. In this case, the full bobbin can be smoothly pushed out, and a repair operation when the elastic body of the bobbin fastening member is worn or damaged can be easily performed.

Further, when the bobbin fastening member is connected and connected as described in claim 2, the interval between the elastic bodies for fastening the bobbin is set to a spacer dimension for maintaining a predetermined value. The number of points can be reduced, the processing time of parts and the assembling operation time can be shortened, and the member adjacent to the bobbin fixing member operating body as described in claim 3 is an elastic body or a spacer for bobbin fixing. With this configuration, it is possible to shorten the processing time and the assembling work time of the parts as in the case of the second aspect, and the elastic body for fastening the bobbin according to the fourth aspect has the width dimension [W (mm)]. ] And thickness dimensions
The maximum allowable rotational speed of the bobbin holder can be increased by configuring the relationship [T (mm)] such that W = (1.5 to 7) T and the rubber hardness is 30 to 70 degrees. When the connecting member of the spacer or the bobbin fastening member is detachably connected to the rear end portion of the cylindrical member as described in the above paragraph, the repair when the elastic body of the bobbin fastening member is worn or broken The operation can be easily performed, and the elastic modulus of the bobbin fastening elastic body positioned near the reciprocating bobbin fastening member operating body as described in claim 6 has a value of at least a depth greater than the depth. When the elastic body has a configuration equal to or higher than the elastic modulus of the elastic body, the bobbin can be securely fastened depending on the bobbin, and the bobbin is fastened to the cylindrical member as described in claim 7. At least the elastic body and spacer When the combination is connected to form a single unit, and the units are detachably connected to each other, even in the case of a long bobbin holder to which four or more bobbins are tightly attached, the bobbin fixing member can be used. The number is not extremely large, the handling is easy, and the assembling and disassembling operations can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing one embodiment of a configuration of a bobbin holder in a yarn winding device of the present invention.

FIG. 2 is a schematic view showing one embodiment of a bobbin fastening member in FIG. 1;

FIG. 3 is a schematic diagram showing details of a configuration of a piston head in FIG. 1;

FIG. 4 is a schematic view showing a claw side of a spacer in FIG. 3;

FIG. 5 is a view as seen from an arrow II in FIG. 4;

FIG. 6 is a schematic diagram showing a cross-sectional shape of the nail shown in FIG. 4;

FIG. 7 is a schematic view showing an engagement groove of a spacer in FIG. 3;

8 is a view taken in the direction of arrows II-II in FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine frame 2 Bobbin holder 3 Cylindrical member 4 Bobbin fastening member operating body 5 Bobbin fastening member 6 Shaft 7 Bearing 8 Cylindrical body 9 Motor 10 Elastic body 11, 12 Spacer 13 Piston head 14 Spring 15, 16 Seal member 1a Supporting part 6a Compressed air supply hole 8a Rib 8b Cylinder 8c Collar 11a, Claw 12a, 13c Engagement groove 12b, 13d Inlet groove 13a Piston 13b Cylindrical

Continued on the front page (72) Inventor Yoshiro Migaki 1-1-1, Sonoyama, Otsu, Shiga Prefecture Toray Engineering Co., Ltd. F-term (reference) 3F056 GC01 GC06 3F112 AA09 BA03 CA03 EA02 EB02 ED03 TA01 VA04

Claims (7)

[Claims] A bobbin fastening member operating body reciprocating at a tip end portion of a bobbin holder; and an elastic body which is compressed and deformed in a radial direction when a pressing force acts in an axial direction by the movement of the bobbin fastening member operating body. The elastic body is maintained at a predetermined interval, a spacer serving to transmit and deform the behavior and force of the bobbin fastening member operating body to the elastic body, and rotatably supported by a machine frame or a turret member, In a bobbin holder including a bobbin fastening member operating body, an elastic body, and a cylindrical member to which a spacer is mounted, the elastic body is formed in advance as an integral bobbin fastening member by spacers located at both ends thereof. The bobbin fastening member is detachably connected and connected, and the bobbin fastening member operating body and an adjacent member are detachably connected. That the yarn take-up device. 2. The structure according to claim 1, wherein when the bobbin fastening member is connected and connected, the interval between the elastic bodies for fastening the bobbin has a spacer dimension to maintain a predetermined value. The yarn winding device as described in the above. 3. The yarn winding device according to claim 1, wherein the member adjacent to the bobbin fastening member operating body is a bobbin fastening member or a spacer. 4. The elastic body of the bobbin fastening member has a width dimension [W
(Mm)] and the thickness dimension [T (mm)]
The yarn winding device according to any one of claims 1 to 3, wherein at (1.5 to 7) T, the rubber hardness is 30 to 70 degrees. 5. The method according to claim 1, wherein a connecting member of a spacer or a bobbin fastening member is detachably connected to a rear end portion of the cylindrical member. The yarn winding device as described in the above. 6. The elastic modulus of the bobbin fastening member made of an elastic body located near the reciprocating bobbin fastening member operating body is at least the value of the elastic modulus of the bobbin fastening member located further back. The yarn winding device according to claim 1, wherein the value is equal to or higher than the value. 7. An elastic body for attaching a bobbin and a spacer mounted on a cylindrical member, and at least two sets of spacers are connected to form a single unit, and the units are detachably connected. The yarn winding device according to any one of claims 1 to 6.