JP3912786B2 - Bobbin holder and yarn winder - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bobbin holder for winding a synthetic fiber yarn and a yarn winder provided with the bobbin holder.
[0002]
[Prior art]
When winding a synthetic fiber yarn around a bobbin where the bobbin wall thickness is too thin to form a yarn catching groove, the yarn is caught by the yarn catching mechanism provided in the bobbin holder, and the bobbin holder And a bobbin holder in which a bobbin holder configured to traverse the yarn after winding it around the bobbin end and forming a predetermined tail is used (for example, , See Patent Document 1).
[0003]
[Patent Document 1]
Registered Utility Model No. 2592631 (page 2-4, Fig. 1-3)
[0004]
[Problems to be solved by the invention]
In the configuration in which the yarn caught by the yarn catching mechanism as described above is wound around the outer peripheral portion of the bobbin holder, the bobbin end portion is not affected even if the yarn catching by the yarn catching mechanism is canceled during the doffing operation. When the bobbin is pushed and pushed out of the bobbin holder, the yarn wound around the peripheral surface of the bobbin holder may not be pulled out and may be cut at a portion wound around the bobbin or a winding start portion.
[0005]
If the yarn is cut at such a point, the tail length becomes short, and it is impossible to perform operations such as piecing in the subsequent process, and it must be rewinded or disposed of as a defective product. There was a problem.
[0006]
In addition, if the thread catching mechanism malfunctions for some reason and parts need to be replaced, the bobbin holder must be removed from the machine frame of the winder and repaired, and the winder has a long stop time. There was a problem that the operating efficiency deteriorated.
[0007]
An object of the present invention is to make it possible to smoothly and surely release the yarn wound around the outer peripheral portion of the bobbin holder and to perform the repair work of the yarn catching mechanism easily and in a short time. is there.
[0008]
[Means for Solving the Problems]
To achieve the above object, a bobbin holder according to the present invention is rotatably supported by a machine frame or a turret member as described in claim 1 and is mounted on the cylindrical member, and the bobbin is placed at a predetermined position. The yarn catching mechanism is mounted so as to be able to rotate and stop at a position where one end of the bobbin of the cylindrical member is located.
[0009]
In the bobbin holder of the present invention, as described in claim 2, the cylindrical member includes a holding ring for holding the bobbin attached to the cylindrical member in a predetermined position, a spacer ring, and a pressing means. is there.
[0010]
In the bobbin holder of the present invention, as described in claim 3, the yarn catching mechanism includes a claw portion for hooking the yarn and a guide portion and a claw mounting portion for allowing the yarn to enter the claw portion. A cylindrical member rotatably mounted on the cylindrical member by a bearing, a claw portion for holding the yarn between the inner peripheral surface of the claw portion of the cylindrical material, and a guide portion for guiding the yarn to the claw portion And a movable claw that is mounted on the claw mounting portion so as to be movable in the diameter direction.
[0011]
A yarn winding machine according to the present invention includes a traverse device for traversing a yarn as described in claim 4, a bobbin holder described in one of claims 1 to 3, and a bobbin holder And a roller that contacts the bobbin held on the bobbin or the yarn wound on the bobbin.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a schematic front view showing an embodiment of the configuration of a yarn winder of the present invention, FIG. 2 is a view taken along the line II in FIG. 1, and the winder has two bobbins for holding a bobbin. The bobbin holders 3 and 4 are rotatably mounted, and the turret member 2 rotatably mounted on the machine frame 1 and a guide formed on the machine frame 1 at a position above the bobbin holder (upper river) in the vertical direction. The traverse mechanism 6 attached to the frame body 5 that moves up and down, the contact roller 7 that is rotatably attached to the frame body 5, and the frame body 5 and the contact roller 7 that are positioned above the traverse mechanism 6 are opposed to each other. An upper thread switching mechanism 8 installed in the machine frame 1 so as to have an interval of, a lower thread switching mechanism 9 installed in the machine frame 1 so as to move between a full bobbin and an empty bobbin, and a yarn Lower thread that winds the thread around the empty bobbin when switching A yarn winding mechanism 10 rotatably attached to the switching device 9 and a machine frame below the lower yarn switching device 8 so as to restrict the yarn path so as to wind the yarn around the empty bobbin when winding is started. 1 is provided with a yarn threading mechanism 11 installed in 1.
[0013]
The turret member 2 is rotatably attached to the machine frame 1 by a bearing. When the bobbin held by the bobbin holder 3 in the winding operation position is full, the empty bobbin in the doffing operation position is in the doffing operation position. In order to move the held bobbin holder 4 to the winding operation position, the bobbin holder 4 is rotated approximately 180 ° clockwise by a driving device (not shown).
[0014]
As shown in FIG. 3, the bobbin holder 3 is integrally formed with a shaft body 22 rotatably mounted by a bearing 23 in a support member 21 protruding in a horizontal state on the turret member 2, and an end portion of the shaft body 22. A cylindrical member 24 attached to the cylindrical member 24, a holding ring 25 such as an elastic ring that is a bobbin holding member fitted into the outer periphery of the cylindrical member 24, and spacer rings 26 and 27 disposed between the holding rings 25. , 28, a pressing means 29 movably attached to the tip of the cylindrical member 24, and a tip yarn catching mechanism 30 inserted so as to be positioned at the tip of the bobbin on the tip side and the bobbin. And an intermediate yarn catching mechanism 31 inserted into the.
[0015]
The shaft body 22 is provided with a pressure air supply hole 22a, and is connected to a pressure air supply pipe (not shown) having a pressure control valve and an electromagnetic switching valve for switching a pipe line. Pressurized air is supplied during the full bobbin doffing operation.
[0016]
The shaft body 22 can be configured such that a shaft body divided into a predetermined length is connected to a single body by a shaft joint or the like.
[0017]
A hollow portion 24a is formed on the front end side of the cylindrical member 24 so that the piston portion 32a of the piston member 32 of the pressing means 29 can move smoothly, and a positioning rod 24b for the holding ring 25 is provided on the outer peripheral portion on the rear end side. The hollow portion 24c is formed so as to have a predetermined distance from the support member 21.
[0018]
The cylindrical member 24 is fixed by a nut 33 in a state of being integrally connected to the shaft body 22 by taper fitting or a key.
[0019]
The pressing means 29 is formed in a hole formed in a piston portion 32a that moves in a hollow portion 24a formed on the distal end side of the cylindrical member 24, and a spring receiver 34 that is integrally attached to the hollow portion 24a by a retaining ring or the like. A piston member 32 formed with a shaft portion 32b that is movably inserted and a pressing portion 35a that moves the outer peripheral portion on the tip end side of the cylindrical member 24 to press the holding ring 25 are formed. The pressing member 35 is attached to the shaft portion 32 b of the 32, and the compression spring 37 is provided between the spring receiver 34 and the piston portion 32 a of the piston member 32.
[0020]
When pressurized air is supplied to the hole 22 a of the shaft body 22, a pressing force acts on the piston portion 32 a of the piston member 32 to compress the compression spring 37, and the pressing member 35 together with the piston member 32 becomes the tip of the cylindrical member 24. The holding ring 25 returns to a predetermined size (smaller than the bobbin inner diameter) to release the holding of the bobbin 100 and the bobbin 100 can be supplied, and is supplied to the hole 22a of the shaft body 22. When the compressed air that has been discharged is discharged, the pressing force on the piston member 32 disappears, the compression spring 37 returns to its original state, the pressing member 35 moves to the support side together with the piston member 32, and the retaining ring 25 is compressed to have a diameter. The bobbin 100 is held by being deformed in the direction and pressing the inner peripheral surface of the bobbin 100.
[0021]
As shown in FIGS. 4, 5, and 6, the tip yarn catching mechanism 30 is movable with a claw portion 38a for hooking the yarn and a recess 38b for guiding the yarn 200 so as to enter the claw portion 38a. A hole 38c for mounting the claw 40 movably in the diameter method and support portions 38d, 38e for preventing the movable claw 40 from jumping out are formed, and a bearing 39 is provided on the outer peripheral portion of the cylindrical member 24. The cylindrical member 38 is rotatably attached to the cylindrical member 24, and a fixing ring 41 for fixing the bearing 39 to the cylindrical member 24.
[0022]
As shown in FIG. 7, the movable claw 40 includes a claw portion 40a of the movable claw 40 that holds the yarn 200 between the claw portion 38a of the cylindrical member 38 and the inner peripheral surface of the support portion 38d, and the yarn 200 is claw portion 40a. A guide portion 40b for guiding the cylindrical member 38 and a flange portion 40c that contacts the support portion 38e of the cylindrical member 38 are formed, and when the cylindrical member 24 rotates together with the shaft body 22, the claw portion 40a becomes a claw of the cylindrical member 38 by centrifugal force. The inner surface of the portion 38a and the support portion 38d is brought into contact with a predetermined surface pressure, and the flange portion 40c is in contact with the support portion 38e of the cylindrical member 38.
[0023]
On the other hand, when the rotation of the cylindrical member 24 stops, centrifugal force does not act on the movable claw 40, and the claw portion 40a is not pressed against the inner peripheral surfaces of the claw portion 38a and the support portion 38d of the cylindrical material 38, and the yarn 200 is pinched. Power is lost.
[0024]
The cylindrical member 38 is processed in the state of two members 38-1 and 38-2 divided into two in the axial direction so that the claw portion 38a, the recess 38b, the hole 38c, and the support portions 38d and 38e can be easily processed. After the processing, the two members 38-1 and 38-2 are fitted into one member 38, but can be formed by one member.
[0025]
As shown in FIGS. 8, 9, and 10, the intermediate yarn catching mechanism 31 is arranged so that the yarn catching claw portion 42a and the yarn 200 enter the claw portion 42a portion in the same manner as the tip yarn catching mechanism 30. And a support 42d and 42e for preventing the movable claw 44 from jumping out, and a cylindrical member. The cylindrical member 42 is rotatably attached to the outer peripheral portion of the bearing 24 by a bearing 43 and a fixing ring 45 for fixing the bearing 43 to the cylindrical member 24 and has substantially the same circumference as the movable claw 44. A bobbin positioning means 46 is provided on the top.
[0026]
The cylindrical member 42 is also processed in the state of two members 42-1 and 42-2 divided in the axial direction in the same manner as the cylindrical member 38, and the two members 42-1 and 42-2 are fitted after processing. Although it is configured as one member 42, it can be formed by one member.
[0027]
Similar to the movable claw 40, the movable claw 44 includes a claw portion 44a of the movable claw 44 that clamps the yarn 200 between the claw portion 42a of the cylindrical member 42 and the inner peripheral surface of the support portion 42d, and the yarn 200 on the claw portion 44a. A guide portion 44b for guiding and a flange portion 44c that contacts the support portion 42e of the cylindrical material 42 are formed, and when the cylindrical member 24 rotates together with the shaft body 22, the claw portion 44a becomes a claw portion of the cylindrical material 42 by centrifugal force. 42a and the inner peripheral surface of the support portion 42d are brought into contact with a predetermined surface pressure, and the flange portion 44c is in contact with the support portion 42e of the cylindrical material 42.
[0028]
On the other hand, when the rotation of the cylindrical member 24 stops, the centrifugal force does not act on the movable claw 44, and the claw portion 44a is not pressed against the inner peripheral surface of the claw portion 42a and the support portion 42d of the cylindrical material 42 so that the yarn 200 is pinched. Power is lost.
[0029]
The bobbin positioning means 46 includes support fittings 47 and 48 that are inserted into holes 42f formed in the cylindrical material 42, and a positioning piece 50 and an operating piece 51 that are rotatably attached to the support fittings 47 and 48. A pin 49 attached so as to be orthogonal to the axial direction of 24, one end is engaged with the positioning piece 50 and the other end is engaged with the operating piece 51, and the positioning piece 50 and the operating piece 51 are supported by the pin 49 as a fulcrum. A coil spring 52 that is shaped like a letter, and a compression spring 53 that is mounted between the recess 51a of the operating piece 51 and the peripheral surface of the cylindrical member 24, and always protrudes from the outer peripheral surface of the cylindrical member 42. ing.
[0030]
The positioning piece 50 is in contact with a contact surface 50a for bobbin positioning and a contact surface 50b for contacting the regulating surface 42g formed on the cylindrical member 42 to regulate the amount of rotation (projection amount) of the positioning piece 50. Has been.
[0031]
The operating piece 51 is formed with an abutting surface 51b that abuts against a regulating surface 42h formed on the cylindrical member 42 and regulates the rotation amount (projecting amount) of the operating piece 51.
[0032]
The bearings 39 and 43 in the tip yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 are bearings or wear resistances such that the cylindrical members 38 and 42 can rotate in the circumferential direction and move in the axial direction with respect to the cylindrical member 24. Use a synthetic resin cylinder with lubricity.
[0033]
Since the tip yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 are attached to the cylindrical member 24 so as to be capable of rotating in the circumferential direction and moving in the axial direction, when the bobbin is inserted and the bobbin is pushed out. When the bobbin holding operation and holding releasing operation are performed, they move in the axial direction, and when the bobbin is held, they rotate together with the cylindrical member 24.
[0034]
The movable claw 40 in the tip yarn catching mechanism 30 and the movable claw 44 in the intermediate yarn catching mechanism 31 may be provided at least one place on the circumference, and two or three places may be provided from the viewpoint of workability and balance. It goes without saying that the number of installation is preferably not limited.
[0035]
The claw portions 38a, 42a of the cylindrical members 38, 42 in the tip yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 are provided so as to be located at a position away from the bobbin end when the bobbin 100 is held.
[0036]
Further, at least one bobbin positioning means 46 in the intermediate yarn catching mechanism 31 may be provided on the circumference, and it is preferable to provide two places in consideration of workability, balance, etc. Needless to say.
[0037]
The bobbin positioning means 46 is provided at a position shifted by 180 ° with respect to the position of the movable claw 44 when the movable claw 44 is at one position, and at a position shifted by 90 ° when the movable claw 44 is at two positions. It is necessary to prevent vibration and the like during rotation by achieving balance.
[0038]
Since the upper yarn switching mechanism 8, the lower yarn switching mechanism 9, the yarn winding mechanism 10, and the yarn hooking mechanism 11 in the winding machine have the same configuration as that described in Japanese Patent No. 2844364, each mechanism The description of the configuration and operation of is omitted.
[0039]
When holding the bobbin 100 with respect to the above-described bobbin holder 3, the pipe line of the compressed air supply pipe (not shown) is switched based on the manual operation or the pipe line switching signal from the control device, and the hole of the shaft body 22 is switched. When pressurized air is supplied to 22 a, the pressing member 35 is moved together with the piston member 32 to the distal end side of the cylindrical member 24 so that the pressing force against the holding ring 25 disappears, and the holding ring 25 is smaller than the inner diameter of the bobbin 100. Return to.
[0040]
At this time, the bobbin positioning means 46 in the intermediate yarn catching mechanism 31 is such that the operating piece 51 is pinned by the compression spring 53 while the upper surface of the positioning piece 50 is the same as the circumferential surface of the cylindrical material 42 as shown in FIG. The upper surface of the operating piece 51 is pushed up with 49 as a fulcrum and protrudes from the circumferential surface of the cylindrical member 42.
[0041]
In this state, the bobbin 100 held on the support side of the bobbin holder 3 is inserted from the pressing means 29 side positioned on the tip side of the bobbin holder 3 to insert the tip yarn catching mechanism 30, the holding ring 25, the spacer ring 26, and the holding ring 25. Then, the spacer ring 27 is moved.
[0042]
When the tip end of the bobbin 100 comes to the bobbin positioning means 46 position in the intermediate yarn catching mechanism 31, the operating piece 51 is pushed down by the inner peripheral surface of the tip of the bobbin 100 and moves in a state as shown in FIG. To do.
[0043]
In this state, when the front end of the bobbin 100 comes into contact with the positioning rod 24b of the cylindrical member 24 and the rear end of the bobbin 100 comes to the position of the bobbin positioning means 46, a positioning piece 50 as shown in FIG. The coil spring 52 rotates about the pin 49 as a fulcrum, and the positioning contact surface 50a protrudes from the circumferential surface of the cylindrical member 42.
[0044]
Next, the bobbin 100 held on the tip end side of the bobbin holder 3 is inserted from the pressing means 29 side located on the tip end side of the bobbin holder 3 in the same manner as described above, and the tip yarn catching mechanism 30, the holding ring 25, and the spacer ring 26 are inserted. , The holding ring 25 and the spacer ring 27 are moved.
[0045]
When the tip of the bobbin 100 comes to the position of the bobbin positioning means 46 in the intermediate yarn catching mechanism 31, the tip of the bobbin 100 comes into contact with the contact surface 50 a of the positioning piece 50.
[0046]
When the two bobbins 100 are inserted into the bobbin holder 3 and the pipeline of a compressed air supply pipe (not shown) is switched to stop the supply of compressed air to the hole 22a of the shaft body 22, the compression spring 37 stops the piston member. The pressing member 35 is moved to the support side of the cylindrical member 24 together with 32.
[0047]
Then, the tip yarn catching mechanism 30, the holding ring 25, the spacer ring 26, the holding ring 25, the spacer ring 27, the intermediate yarn catching mechanism 31, the holding ring 25, the spacer ring 28, and the holding ring 25 are sequentially placed on the cylindrical member 24. It moves toward the support side, and the retaining ring 25 is sequentially compressed and protrudes in the outer diameter direction to press the inner peripheral surface of the bobbin 100 and hold the bobbin 100.
[0048]
When the above-described operation of holding the bobbin 100 is completed, the bobbin holder 3 and the contact roller 7 are rotated and brought into contact with each other and the traverse mechanism 6 is operated.
[0049]
When these preparations are completed, the yarn 200 spun from a spinning machine (not shown) is sucked into the suction gun, and the yarn removal guide of the upper yarn switching mechanism 7 is protruded so that the yarn 200 is traversed. The yarn 200 is passed through the yarn guide of the yarn hooking mechanism 10 without being engaged with the traverse guide 6 and the yarn guide is moved to the yarn winding operation position.
[0050]
Next, when the turret member 2 is rotated and moved to the intermediate stop position, the upper yarn changing mechanism 7 is operated and the yarn guide is moved, and the yarn 200 is shown by the one-dot broken line in FIGS. Travels at a predetermined angle with respect to the axis of the bobbin holder 3.
[0051]
When the bobbin holder 3 is rotated, the tip yarn catching mechanism 20 and the intermediate yarn catching mechanism 21 are integrally rotated together with the cylindrical member 24, and the claw portions 30a and 34a of the movable claws 30 and 34 and the upper surface of the collar portion 30c are centrifuged. It moves to the outside by force and is in a state of being pressed by the claw portions 28a, 32a of the cylindrical members 28, 32 and the inner peripheral surfaces of the support portions 28d, 28e.
[0052]
When the bobbin holder 3 continues to rotate in this state, the guides of the concave portions 28b and 32b of the cylindrical materials 28 and 32, the holes 28c and 32c, and the movable claws 30 and 34 in the tip yarn catching mechanism 20 and the intermediate yarn catching mechanism 21 are firstly performed. The parts 30b and 34b are located in the yarn traveling part.
[0053]
Next, while the claw portions 28a and 32a of the cylindrical materials 28 and 32 and the claw portions 30a and 34a of the movable claws 30 and 34 are moved, the respective yarns 200 are placed inside the claw portions 28a and 32a of the cylindrical materials 28 and 32. It enters the peripheral surface side, is sandwiched between the inner peripheral surface of the claw portions 28a, 32a and the outer peripheral surface of the claw portions 30a, 34a of the movable claws 30, 34, and is wound around the peripheral surfaces of the cylindrical members 28, 32.
[0054]
When each thread 200 is sandwiched between the claw portions 28a and 32a of the cylindrical materials 28 and 32 and the claw portions 30a and 34a of the movable claws 30 and 34 and wound around the circumferential surfaces of the cylindrical materials 28 and 32, the yarn hooking mechanism 10 The yarn 200 traveling toward the upper side is cut substantially simultaneously.
[0055]
When the respective yarns 200 are wound around the cylindrical members 38 and 42 in the leading-end yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 by the above-described operation, the yarn removal guide of the upper yarn switching mechanism 8 is returned to the standby position to return the yarn. The strip 200 is moved to the traverse region of the traverse guide of the traverse mechanism 6. Then, the yarn 200 is wound around the bobbin 100 while being traversed while being engaged with the traverse guide.
[0056]
When a predetermined amount of yarn 200 is wound around the bobbin 100, the upper yarn switching mechanism 8, the lower switching mechanism 9, and the yarn winding mechanism 10 are sequentially operated, and the turret member 2 is rotated to be empty. When the bobbin holder 3 holding the bobbin comes to the yarn switching position, the yarns 200 are clamped by the tip yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 and switched from the full bobbin to the empty bobbin.
[0057]
Then, when the full bobbin is moved to the doffing position and the rotation of the bobbin holder 3 is stopped, the centrifugal force is lost, so that the claw portions 40a of the movable claws 40, 44 in the tip yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 are eliminated. , 44a and the upper surface of the collar portion 40c are separated from the inner peripheral surfaces of the claw portions 38a, 42a and the support portions 38d, 38e of the cylindrical members 38, 42, or there is no pressing force and the pinching of the yarn is released. Become.
[0058]
In this state, the pipeline of the compressed air supply pipe (not shown) is switched to supply pressurized air to the hole 22a of the shaft body 22, and the pressing member 35 is moved to the distal end side of the cylindrical member 24 and held together with the piston member 32. When the ring 25 returns to a size smaller than the inner diameter size of the bobbin 100, an extrusion mechanism (not shown) installed in the machine casing 1 is actuated to push the bobbin 100 on the support side.
[0059]
As a result of the pushing operation, the bobbin 100 on the front end side and the support side moves on the bobbin holder 3, and the yarns 200 wound around the cylindrical members 38 and 42 of the front end yarn catching mechanism 30 and the intermediate yarn catching mechanism 31 are moved. When pulled, the cylindrical members 38 and 42 are rotated in the direction in which the yarns 200 are drawn by the bearings 39 and 43, and the yarns 200 wound around the cylindrical members 38 and 42 are smoothly drawn out without any resistance.
[0060]
When the bobbin 100 is pushed out from the bobbin holder 3 to a peg of a transport cart (not shown), it is transported to a predetermined processing position.
[0061]
An empty bobbin 100 is supplied to the bobbin holder 3 where the doffing operation has been completed to prepare for the next thread switching.
[0062]
When the movable pawls 40, 44, the bearings 39, 43, the retaining ring 25, etc. in the above-described leading-end yarn catching mechanism 30 and intermediate yarn catching mechanism 31 become malfunctioning for some reason, the leading-end yarn needs to be replaced. Since the catching mechanism 30 and the intermediate yarn catching mechanism 31 can be attached to or detached from the cylindrical member 24 in a unit state, the repair work of the yarn catching mechanism and the like can be performed easily and in a short time. Therefore, the stop time of the winder is not lengthened, and a reduction in operating efficiency can be prevented.
[0063]
When two or more bobbins are held in the bobbin holder 3 described above, the tip yarn catching mechanism 30, the holding ring 25, and the spacer ring 27 are attached to the cylindrical member 24 corresponding to the bobbin holding position on the tip side. The intermediate yarn catching mechanism 31, the holding ring 25, and the spacer rings 27 and 28 are mounted on the cylindrical member 24 corresponding to each bobbin holding position, and when one bobbin is held, the tip yarn catching is performed. The mechanism 30, the holding ring 25, and the spacer ring 27 are mounted on the cylindrical member 24.
[0064]
In the bobbin holder of the present invention, the bobbin engaging member appears and disappears in the diametrical direction by moving the cone together with the piston member in the longitudinal direction of the shaft by compressed air as described in Japanese Patent Publication No. 7-80629. Needless to say, the present invention can be applied to a bobbin holder that presses and holds the peripheral surface (see, for example, Patent Document 2), and is not limited to the configuration of the bobbin holder.
[0065]
[Patent Document 2]
Japanese Patent Publication No. 7-80629
[0066]
The yarn winding machine according to the present invention has a bobbin holder in which a plurality of bobbin holders are sequentially moved to a winding position and a doffing position along a guide formed on the machine frame. Needless to say, the present invention can be applied to a manually switching type winder that is rotatably mounted, and is not limited to the configuration of the winder.
【The invention's effect】
[0067]
The bobbin holder of the present invention comprises a cylindrical member rotatably supported by a machine frame or a turret member, and a holding member that is mounted on the cylindrical member and holds the bobbin in a predetermined position. Since the yarn catching mechanism is mounted so that it can be rotated and stopped at the position where one end of the bobbin of the cylindrical member is located, the yarn wound around the outer periphery of the bobbin holder can be released smoothly and reliably. In addition, the repair work such as the yarn catching mechanism can be performed easily and in a short time.
[0068]
According to the bobbin holder of the present invention, the holding member includes a holding ring that holds the bobbin attached to the cylindrical member in a predetermined position, a spacer ring, and a pressing unit. Therefore, the bobbin can be mounted and pushed out with certainty, and the machining operation and assembly operation for assembling the yarn catching mechanism to the cylindrical member can be easily performed.
[0069]
In the bobbin holder of the present invention, the yarn catching mechanism as defined in claim 3 is formed with a hook portion for hooking the yarn and a guide portion and a claw mounting portion for allowing the yarn to enter the claw portion. A cylindrical member rotatably mounted on the cylindrical member by a bearing, a claw portion for holding the yarn between the inner peripheral surface of the claw portion of the cylindrical material, and a guide portion for guiding the yarn to the claw portion When the bobbin is pushed out from the bobbin holder, the yarn caught by the yarn catching mechanism is wound around the hook catching portion. When the wire is pulled, the yarn catching mechanism rotates and can be pulled out smoothly and reliably and released.
[0070]
The yarn winding machine of the present invention includes a traverse device for traversing the yarn as described in claim 4, a bobbin held by the bobbin holder or a roller that contacts the yarn wound on the bobbin, Since the bobbin holder described in one of claims 1 to 3 is provided, the yarn catching mechanism can be repaired easily and in a short time. The operating efficiency of the synthetic fiber yarn manufacturing unit including the machine can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic view showing one embodiment of the configuration of a yarn winding machine according to the present invention.
FIG. 2 is a view taken along arrow II in FIG.
FIG. 3 is a schematic cross-sectional view showing an embodiment of the configuration of the bobbin holder in FIG.
4 is a schematic view of an embodiment of a configuration of a tip yarn catching mechanism in FIG. 3. FIG.
FIG. 5 is a view taken in the direction of arrows II-II in FIG. 4;
FIG. 6 is a view taken in the direction of arrow III in FIG.
FIG. 7 is a schematic perspective view showing an embodiment of the shape of a movable claw.
8 is a schematic view showing an embodiment of the configuration of the intermediate yarn catching mechanism in FIG. 3. FIG.
FIG. 9 is a view taken in the direction of arrows IV-IV in FIG.
FIG. 10 is a view taken along arrow VV in FIG. 9;
FIG. 11 is a schematic cross-sectional view showing a state in which the bobbin is being inserted in the intermediate yarn catching mechanism.
FIG. 12 is a schematic cross-sectional view showing a state after the bobbin is inserted in the intermediate yarn catching mechanism.
[Explanation of symbols]
1 Machine frame
2 Turret members
3, 4 Bobbin holder
5 Frame
6 Traverse mechanism
7 Contact roller
8 Upper thread switching mechanism
9 Lower thread switching mechanism
10 Yarn winding mechanism
11 Threading mechanism
21 Support member
22 Shaft
23 Bearing
24 Cylindrical member
25 retaining ring
26, 27, 28 Spacer ring
29 Pressing means
30 Tip yarn catching mechanism
31 Intermediate thread catching mechanism
32 Piston member
33, 36 nut
34 Spring support
35 Pressing member
37, 53 Compression spring
38, 42 Cylindrical material
39, 43 Bearing
40, 44 Movable claws
41, 45 Ring for fixing
46 Bobbin positioning means
47, 48 Support bracket
49 pins
50 Positioning piece
51 working piece
52 Coil spring

Claims (4)

A cylindrical member that is rotatably supported by a machine frame or a turret member, and a holding member that is attached to the cylindrical member and holds the bobbin in a predetermined position, and the yarn catching mechanism has one end of the bobbin of the cylindrical member A bobbin holder characterized in that it is mounted so that it can be rotated and stopped at a position where it is located. 2. The bobbin holder according to claim 1, wherein the cylindrical member includes a holding ring that holds a bobbin mounted on the cylindrical member in a predetermined position, a spacer ring, and a pressing unit. Cylindrical material in which the yarn catching mechanism is formed with a claw portion for hooking the yarn, a guide portion for allowing the yarn to enter the claw portion, and a claw attachment portion, and is rotatably attached to the cylindrical member by a bearing. And a guide part for guiding the yarn to the claw part and a guide part for guiding the yarn to the claw part are formed, and the claw attachment part can be moved in the diametrical direction. The bobbin holder according to claim 1, wherein the bobbin holder is provided with a mounted movable claw. A traverse device that traverses the yarn, a bobbin holder according to one of claims 1 to 3, and a bobbin held by the bobbin holder or a roller that contacts the yarn wound on the bobbin A yarn winder characterized by having a configuration comprising:

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