JPH1064U - Yarn winding tube and yarn winding package - Google Patents

Abstract

(57) [Summary] [Purpose] A yarn winding tube that can reliably capture a yarn and quickly move the captured yarn from a capture position to a bunch winding position, and a yarn that can be used repeatedly. An object of the present invention is to provide a winding tube and a yarn winding package which is easy to handle without dangling a long yarn end during doffing and conveying operations. An inner peripheral side of at least one end face of a cylindrical body is formed on a plane which is substantially parallel to a plane orthogonal to a longitudinal direction of an axis, and an outer peripheral side of the plane from the outer peripheral edge to a plane outer peripheral part. And a ridge 2c connecting the inclined surface 2b and the outer peripheral surface of the cylindrical body is formed into an arc shape having a radius of 2 mm or less. It has a configuration.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention mainly relates to an improvement in a yarn winding tube used for winding a synthetic fiber filament yarn, and a yarn winding package.

[0002]

[Prior art]

 Generally, in a tube used for winding a synthetic fiber yarn, a V-shaped cross section is provided at a longitudinal end of a cylindrical body formed of laminated paper.

The above-described yarn catching groove is formed by an introduction portion having a V-shaped cross section and a catching portion having a narrow groove shape. The catching portion is a tube for preventing the captured yarn from coming off. The circumferential part of is crushed to make the narrow groove-shaped catching part adhere.

[0004] In such a tube, there is a problem that the yarn does not bite into the catching portion even when the yarn is run in a state of contact with the introduction portion of the yarn catching groove.

In addition, there is a problem that unless the yarn is moved in a state parallel to the yarn catching groove, the yarn does not bite into the catching portion.

[0006] Furthermore, when trying to remove the yarn trapped and wound by the catching portion, the thread is caught in a projection or the like formed by crushing the narrow groove of the catching portion, and becomes a fluffy shape. A part of the remaining thread remains in the supplement.

[0007] Therefore, there is a problem in that the fluffy thread caught on the projection in the capturing portion at the time of reuse must be removed.

There is another problem that the bunch-wound yarn must be removed so as not to be caught in the yarn catching groove.

Therefore, a tube having no thread catching groove is used, and the thread is formed at the joint where the tube end faces abut each other or at the joint where the tube end face abuts the end face of the step portion of the tube tightening spindle or the like. Then, a tail winding is formed at the end of the circumferential surface of the tube, and then the yarn is traversed and wound.

[0010] The above-mentioned tube having no thread catching groove has a U-shaped groove having a vertical surface and a tube having a U-shaped groove formed by abutting two tubes as described in JP-A-51-43411. An inclined surface protruding in the length direction from the outer peripheral edge toward the inner peripheral edge is provided on the end surface of the tube, or the inclined surface is formed by abutting two tubes on the end surface of the tube. Thus, a V-shaped yarn catching portion is formed.

Then, the yarn is guided to the yarn catching portion by the yarn introducing portion which is a U-shaped groove or a V-shaped opening formed by the two tubes, and is formed of a gap whose inner circumferential direction is reduced. The yarn is held by the yarn catching portion.

The above-mentioned tube has a configuration in which a cylindrical body is formed of laminated paper, and a surface paper is adhered to an outer peripheral surface thereof.

[0013]

[Problems to be solved by the invention]

 If the above-described yarn introduction portion is formed in the U-shaped groove, the captured yarn does not contact the vertical wall surface of the U-shaped groove, and the yarn is chuted by the frictional force with the vertical wall surface. The thread does not move to the circumferential surface side of the probe, and the thread is wound around the U-shaped groove.

Therefore, in order to prevent the yarn wound in the U-shaped groove from hanging down during the doffing operation or the carrying operation, the operator must remove the yarn and remove a large amount of the yarn. There is a problem that waste threads are generated.

Further, there is a problem that a yarn moving mechanism for moving the yarn caught in the U-shaped groove to the bunch winding position must be installed in the winding machine.

On the other hand, when the yarn catching portion is formed in the V-shaped groove, the difference between the outer diameter of the tube and the diameter of the bottom of the V-shaped groove where the yarn is captured is substantially equal to the thickness of the tube. Is generated.

[0017] Therefore, by rotating a turret member on which a plurality of tube tightening spindles are rotatably mounted, an empty tube is tightened from a winding position to a doffing position from a winding position. When the yarn is switched by a turret type winder that moves the spindle from the doffing position to the winding position, the peripheral speed at the bottom of the V-shaped groove for catching the yarn is the peripheral speed of the circumferential surface of the tube. On the other hand, there is a problem that the yarn is not trapped in the V-shaped groove because the yarn is slowed down by the thickness dimension and the tension of the yarn is reduced.

Further, even when the yarn is captured, the tension of the yarn is reduced, so that the yarn is wound around a roller provided upstream of the turret type winder.

As a result, there is a problem that the success rate of the yarn switching from the fully loaded tube to the empty tube is 10% or less.

Further, when the above-mentioned tube is formed of laminated paper, when the tube is used repeatedly, the surface paper at the end of the tube peels off or bulges.

For this reason, the yarn cannot be introduced into the catching groove, or the unwinding tension fluctuates due to contact with the surface paper or the swelling surface paper from which the yarn has been peeled when the yarn is released, or the yarn breaks. There's a problem.

[0022] The present invention solves the above-mentioned problems, and enables the yarn to be reliably captured and the captured yarn to be quickly moved from the capture position to the bunch winding position. An object of the present invention is to provide a take-up tube, a take-up tube that can be used repeatedly, and a take-up package that is easy to handle because the long end of the yarn does not sag during doffing and transport operations. Is what you do.

[0023]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the yarn winding tube of the present invention has the inner peripheral side of at least one end surface of the cylindrical body substantially parallel to the surface in the direction orthogonal to the longitudinal direction of the axis as in claim 1. And the outer peripheral side of the flat portion is formed into an inclined surface protruding in the axial direction from the outer peripheral edge toward the outer peripheral surface of the plane, and connects the inclined surface with the outer peripheral surface of the cylindrical body. The ridge is shaped so as to form an arc with a radius of 2 mm or less.

In the yarn winding tube, the end surface of the cylindrical body is formed substantially parallel to the surface perpendicular to the longitudinal direction of the axis, and the one end surface and the outer periphery of the cylindrical body are formed. The ridge connecting the surfaces is formed into an arc shape with a radius of 2 mm or less, and the ridge connecting the other end surface and the outer peripheral surface of the cylindrical body has an arc shape with a radius larger than the radius of the ridge portion of the end surface. It can also be formed in a shape as described above.

Further, the yarn winding tube is formed of laminated paper as in claim 3, and the end face and the outer peripheral face of the cylindrical body at both ends or one end of the cylindrical body are covered with a protective member. It is a configuration that has been made as follows.

On the other hand, in the yarn winding package according to the present invention, the inner peripheral side of at least one end face of the cylindrical body is formed on a plane substantially parallel to a plane orthogonal to the longitudinal direction of the axis. In addition, the outer peripheral side of the flat portion is formed as an inclined surface, and the ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body is formed so as to have an arc shape with a radius of 2 mm or less. The shape is such that a bunch winding, tail winding, tail winding, and winding layer are sequentially formed to hold the yarn end from the end side of the circumferential surface.

Further, the yarn winding package is formed such that both end surfaces thereof are substantially parallel to a surface in a direction orthogonal to the longitudinal direction of the axis, and one end surface and the outer peripheral surface of the cylindrical body. Is formed in an arc shape having a radius of 2 mm or less, and the ridge connecting the other end surface and the outer peripheral surface of the cylindrical body is formed in an arc shape having a radius larger than the radius of the ridge portion of the end surface. A bunch winding, a tail winding, and a bobbin layer are sequentially formed on the end of the circumferential surface of the tube formed so as to hold the yarn end, or a cylindrical body as defined in claim 6 is formed of laminated paper. At the same time, a bunch winding and a tail that presses the yarn end from the end side to the circumferential surface of the tube in which the end surface and the outer peripheral surface of the cylindrical body at both ends or one end of the cylindrical body are covered with the protective member. Winding and winding layers are formed sequentially It can be in shape.

[0028]

[Action]

 According to the yarn winding tube of the present invention, the inner peripheral side of at least one end face of the cylindrical body is formed on a plane substantially parallel to a plane perpendicular to the longitudinal direction of the axis, and the outer peripheral side with respect to the plane section. Is formed into an inclined surface, and the ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body is formed into an arc shape having a radius of 2 mm or less. The yarn is guided by the yarn introduction portion to be captured by the capture portion and is captured, and the captured yarn comes into contact with the inclined surface by the rotation of the tube and is promptly moved to the bunch winding position on the circumferential surface.

[0029]

【Example】

 FIG. 1 is a schematic perspective view showing a state in which the yarn winding tube of the present invention is mounted on a spindle, and FIG. 2 is a schematic sectional view showing the shape of the yarn winding tube in the first embodiment in FIG. FIG. 3 is an enlarged view of a portion I in FIG. 1, and FIG. 4 is an enlarged view showing another embodiment, in which a tube 1 has a cylindrical body 2 formed of laminated paper, and a surface paper 3 has a circumferential surface. It is attached. Both end surfaces or one end surface of the cylindrical body 2 are formed such that the inner peripheral side surface of the end surface is formed on a plane 2a substantially parallel to a surface in a direction orthogonal to the longitudinal direction of the axis, and the outer peripheral side from the plane 2a is defined by the outer peripheral edge. A shape in which an inclined surface 2b protruding in the axial direction toward the outer periphery of the plane is formed, and a ridge 2c connecting the inclined surface 2b and the outer peripheral surface of the cylindrical body is formed in an arc shape. It is.

In order to set the dimensions and shape of the tube 1, the outer diameter (D) is 126 mm, the inner diameter (d) is 110 mm, and the wall thickness (t 1) is 8 mm. The end surface is processed into various combinations of the dimensions (t2) of the inclined surface 2b, the angle (θ2) of the inclined surface 2b with respect to a vertical line in a direction orthogonal to the longitudinal direction of the axis, and the like. When the 75d polyester yarn was switched under the condition that the yarn speed was 4500 m / min by a turret type winder described in the specification of Japanese Patent Application No. 5-136572, (Table 1) The results shown in (Table 2) were obtained.

Instead of the turret type winder described above, the same applies to a turret type winder configured to press the tube from the end of the spindle toward the support side and hold each tube to the spindle by pressing force. Can be obtained.

[0032]

[Table 1]

[0033]

[Table 2] Ideally, the plane 2a formed on the tube 1 is processed so that the angle (θ1) with respect to a vertical line in a direction orthogonal to the longitudinal direction of the axis becomes 0 ° as shown in FIG. In view of the processing error and the fact that the tube is compressed and deformed in the longitudinal direction of the axis when the tube is tightened, the angle (θ1) is preferably set to be within ± 2 °.

As shown in (Table 1), when the outer diameter of the tube is 126 mm, the difference in peripheral speed becomes large when the outer diameter of the tube becomes 3 mm or less, and the thread tension extremely decreases as shown in (Table 1). Therefore, the size (t2) of the inclined surface 2b from the circumferential surface of the tube to the flat surface 2a is preferably set to 4% or less of the outer diameter of the tube.

Ideally, the inclined surface 2b is processed so that the angle (θ2) with respect to a vertical line in a direction orthogonal to the longitudinal direction of the axis becomes small as shown in FIG. When the angle (θ2) is 1 ° or less, the yarn switching success rate decreases to 90% or less due to poor yarn introduction, and when the angle (θ2) becomes 8 °, the yarn cannot be reliably captured. The thread switching success rate becomes 95% or less.

Therefore, in order to satisfy that the yarn can be introduced and reliably guided to the catching portion, and that the captured yarn can contact the inclined surface 2b and move quickly on the circumferential surface in order to satisfy the requirements. It is preferable to set the angle (θ2) in the range of 2 to 5 °.

When the ridge 2c connecting the inclined surface 2b and the outer peripheral surface of the cylindrical body has an arc having a radius of 3 mm as shown in (Table 2), the movement from the capturing portion to the circumferential surface becomes slow. The yarn end length protruding from the bunch winding part becomes 300 cm, and the success rate of the yarn switching becomes 95% due to the failure to catch the yarn.

Therefore, it is preferable that the ridge portion 2 c be formed in an arc shape having a radius of 2 mm or less.

The ridge 2c is preferably formed in an arc shape having a radius of 0.3 mm or more in order to prevent the yarn from being scratched or fuzzed by contact with the yarn.

Since the catching force of the yarn in the above-described tube 1 is greatly influenced by the roughness, the one obtained by processing the roughness of the inclined surface 2b into JIS Rmax 12S and the one obtained by processing JIS Rmax 8S is used. As shown in FIG. 11, a 75 d polyester filament yarn is wound on the tube while applying a force of 10 kg to the tube in a direction perpendicular to the paper surface and applying a tension of 30 g by the portable weighing scale 20. When gripped at an angle of 30 °, the JIS Rmax 8S slipped, but the JIS Rmax 12S yarn was cut.

Therefore, in order to reliably capture the yarn, it is preferable to process the inclined surface 2b to have a roughness of JIS Rmax 12S or more.

It is preferable that the inclined surface 2 b is knurled in a twill pattern or is formed into a substantially concentric parallel ridge.

Next, FIG. 5 is an enlarged view of a portion II in FIG. 1 showing a shape of a tube according to a second embodiment of the present invention. The surface paper 3 is adhered to the surface. The two end surfaces of the cylindrical body 2 are formed on planes 2a1, 2a2 substantially parallel to a plane perpendicular to the longitudinal direction of the axis, and ridges 2c1, 2c2 connecting the planes 2a1, 2a2 with the outer peripheral surface of the cylindrical body. Is formed in an arc shape.

In the same manner as in the tube of the first embodiment, the dimensions of the ridges 2c1, 2c2 are processed into various combinations, and a 75d polyester yarn is formed by using these tubes. When the winding yarn was switched by the turret type winder at a speed of 4500 m / min, the results shown in Table 3 could be obtained.

[0045]

[Table 3] As shown in Table 3, the dimensions of the ridges 2c1 and 2c2 formed on the tube 1 are as shown in Table 3 when the ridge 2c1 is 3 mm and the ridge 2c2 is 3 mm or more. The length of the yarn end protruding from the bunch winding part becomes 500 cm or more, and the diameter of the bottom part of the grip part becomes small, the yarn tension decreases, and the yarn switching success rate becomes 90% or less. Become.

Therefore, it is preferable that the ridge 2c1 is processed into an arc having a radius of 2 mm or less, and the ridge 2c2 is processed into an arc having a radius of 2 to 4 mm.

FIG. 6 is a schematic sectional view showing the shape of a third embodiment of the tube of the present invention, and FIG. 7 is a schematic sectional view showing another embodiment of the third embodiment. Covers the cylindrical body 2 formed of laminated paper, the surface paper 3 adhered to the circumferential surface of the cylindrical body 2 and the end face and the outer peripheral face of the cylindrical body 1 at both ends or one end of the cylindrical body 2 It is composed of a protection member 4.

It is preferable that the protective member 4 adheres a thin paper having a thickness of 0.1 mm or less, but a polymer material such as ABS resin or vinyl chloride resin is formed by injection molding to a thickness of 0.5 to 2 mm, preferably 1 mm. May be manufactured and pressed into the cylindrical body 1.

The above-described protective member 4 has a state in which the circumferential surface of the cylindrical body 1 and the circumferential surface of the protective member 4 have a step as shown in FIG. 6, or the circumferential surface of the cylindrical body 1 as shown in FIG. The protective member 4 is attached by bonding or the like so that the circumferential surface of the protective member 4 has no step.

When the yarn is wound up by the tube 1 as described above, the captured yarn comes into contact with the inclined surface 2d or the flat surface 2a and is lifted by the frictional force, and immediately moves on the circumferential surface to be bunched. Since the winding 10b is formed, the length of the yarn end (10a) protruding from the bunch winding portion can be made approximately 115 cm or less, and the bunch winding 10b is formed at a position of 5 mm to 10 mm from the tube end surface. Can be.

The length of the yarn end 10a described above is measured by stretching the yarn straight, and the actual yarn end 10a is in a crimped state that occurs when the yarn is cut apart. Therefore, its length is 20 to 30 cm.

Further, since the yarn end 10a is fixed by the bunch winding 10b, the yarn end 10a is not released even if the yarn end 10a is pulled.

As a result, as shown in FIG. 8, a yarn in which a bunch winding 10b, a tail winding 10c, and a yarn winding layer 10d for pressing the yarn end 10a from the end side of the circumferential surface of the tube 1 are sequentially formed. The winding package 10 can be obtained.

When the yarn is wound on the tube shown in FIG. 5, the yarn winding package 10 as shown in FIG. 9 is obtained, and when the yarn is wound on the tube shown in FIG. 6, it is obtained as shown in FIG. A simple yarn winding package 10 can be obtained.

[0055]

[Effect of the invention]

 In the yarn winding tube of the present invention, the inner peripheral side of at least one end face of the cylindrical body is formed as a plane substantially parallel to a plane perpendicular to the longitudinal direction of the axis as in claim 1. The outer peripheral side of the plane is formed so as to form an inclined surface protruding in the axial direction from the outer peripheral edge toward the outer peripheral portion of the plane from the outer peripheral edge, and the ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body has a radius of 2 mm or less. Since the shape is formed so as to form an arc, the yarn is reliably guided to and captured by the capturing portion by the introduction portion formed by the inclined surface, and the captured yarn is also inclined. As a result, the bunch can be formed by immediately moving on the circumferential surface upon reliable contact.

As a result, the length of the yarn end protruding from the bunch winding part can be shortened, and the bunch winding can be formed at a position close to the tube end face, so that the tube length can be shortened.

The yarn winding tube has both end surfaces formed substantially parallel to a surface in a direction perpendicular to the longitudinal direction of the axis, and one end surface and the outer peripheral surface of the cylindrical body. Is formed so as to form an arc having a radius of 2 mm or less, and the ridge connecting the other end surface and the outer peripheral surface of the cylindrical body is formed into an arc having a radius larger than the radius of the ridge. The same effect can be obtained even when the shape is formed.

Further, the yarn winding tube has a cylindrical body formed of laminated paper as defined in claim 3, and the end face and the outer peripheral face of the cylindrical body at both end portions or one end portion of the cylindrical body. With a configuration in which the tube is covered with the protective member, the tube is not deformed even when used repeatedly, and can be used repeatedly about three times or more as compared with a conventional tube.

On the other hand, in the yarn winding package of the present invention, the inner peripheral side of at least one end face of the cylindrical body is formed on a plane substantially parallel to a plane orthogonal to the longitudinal direction of the axis. In addition, the outer peripheral side of the flat portion is formed as an inclined surface, and the ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body is formed so as to have an arc shape with a radius of 2 mm or less. The bunch winding, tail winding, and winding layers that hold the yarn end from the end of the circumferential surface are formed sequentially, so the yarn end is short, and the yarn end fixed by the bunch winding can be released. And doffing and transporting operations can be performed easily.

Further, the yarn winding package has both end surfaces formed substantially parallel to a surface perpendicular to the longitudinal direction of the axis, and one end surface and the outer peripheral surface of the cylindrical body. And a ridge connecting the other end face and the outer peripheral surface of the cylindrical body is formed so as to form an arc having a radius larger than the radius of the ridge. The same effect can be obtained by a structure in which a bunch winding, a tail winding, and a winding layer are sequentially formed on the end side of the circumferential surface of the shrunken tube so as to hold the yarn end.

Further, the yarn winding package is formed by forming the cylindrical body from laminated paper as in claim 6, and the end face and the outer peripheral face of the cylindrical body at both ends or one end of the cylindrical body are protected by a protective member. If the bunch winding, tail winding, and winding layer are formed in order on the circumferential surface of the wrapped tube to hold the yarn end from the end side, the impact force will be applied to the tube during the doffing operation and transport operation of the package. Deformation can be prevented even if acts.

Further, since the V-shaped groove for thread capture is not formed unlike the conventional tube, the bunch winding and the tail winding are removed in order to facilitate the handling in the post-processing step. Work can be performed easily.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a state in which a yarn winding tube of the present invention is mounted on a spindle.

FIG. 2 is a schematic sectional view showing the shape of a first embodiment of the yarn winding tube of the present invention.

FIG. 3 is an enlarged view of a portion I in FIG.

FIG. 4 is a schematic view showing a shape of another embodiment of FIG. 3;

FIG. 5 is an enlarged view of a part II in FIG. 1 showing a shape of a second embodiment of the yarn winding tube of the present invention.

FIG. 6 is a schematic sectional view showing a shape of a third embodiment of the yarn winding tube according to the present invention;

FIG. 7 is a schematic view showing the shape of another embodiment in FIG. 6;

FIG. 8 is a schematic view showing the shape of the first embodiment of the yarn winding package according to the present invention;

FIG. 9 is a schematic view showing the shape of a second embodiment of the yarn winding package according to the present invention;

FIG. 10 is a schematic view showing a shape of a third embodiment of the yarn winding package according to the present invention;

FIG. 11 is a schematic diagram showing a configuration of an apparatus for checking a yarn capturing state of a tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tube 2 Cylindrical body 3 Surface paper 4 Protective member 2a, 2a1, 2a2 Plane 2b Inclined surface 2c, 2c1, 2c2 Ridge

Claims (6)

[Utility model registration claims] 1. An inner peripheral side of at least one end face of a cylindrical body is formed on a plane substantially parallel to a plane in a direction orthogonal to a longitudinal direction of an axis, and an outer peripheral side from the plane part is changed from an outer peripheral edge to a plane outer peripheral part. And a ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body is formed into an arc shape having a radius of 2 mm or less. Yarn winding tube. 2. A method according to claim 1, wherein both end surfaces of the cylindrical body are formed to be substantially parallel to a surface in a direction orthogonal to the longitudinal direction of the axis, and a ridge connecting one end surface to the outer peripheral surface of the cylindrical body has a radius of 2 mm or less. And the ridge connecting the other end face and the outer peripheral surface of the cylindrical body is formed to have an arc shape having a radius larger than the radius of the ridge of the end face. Tube for winding yarn. 3. A yarn formed by forming a cylindrical body from laminated paper, and protecting the end face and the outer peripheral face of the cylindrical body at both ends or one end of the cylindrical body with a protective member. Strip winding tube. 4. An inner peripheral side of at least one end face of the cylindrical body is formed in a plane substantially parallel to a plane in a direction orthogonal to the longitudinal direction of the axis, and an outer peripheral side of the plane part is formed as an inclined plane. In addition, a bunch winding, a tail winding, which presses the yarn end from the end side of the circumferential surface of the tube, in which the ridge connecting the inclined surface and the outer peripheral surface of the cylindrical body is formed into an arc shape with a radius of 2 mm or less, A yarn winding package characterized by sequentially forming a yarn winding layer. 5. Both ends of the cylindrical body are formed substantially parallel to a surface in a direction orthogonal to the longitudinal direction of the axis, and a ridge connecting one end surface to the outer peripheral surface of the cylindrical body has a radius of 2 mm or less. The circumferential surface of the tube is formed so as to have an arc shape, and the ridge connecting the other end surface and the outer peripheral surface of the cylindrical body has an arc shape having a radius larger than the radius of the ridge portion of the end surface. A yarn winding package characterized in that a bunch winding, a tail winding, and a winding layer are sequentially formed on the end side to hold the yarn end. 6. A cylindrical body formed of laminated paper, and an end surface and an outer peripheral surface of the cylindrical body at both ends or one end of the cylindrical body are covered with a protective member. A yarn winding package characterized by sequentially forming a bunch winding, a tail winding, and a yarn winding layer for holding the yarn end from the side of the yarn winding portion.