JPH077336Y2 - Spooling device for roving guide of spinning machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention moves along the longitudinal direction of the spinning machine base, and holds the preliminary roving wound on the creel of the spinning machine and spinning near the sky. It is equipped with a roving yarn changer that has the function of performing roving yarn splicing work between the roving yarn being spun and the roving end of the spare roving yarn to be newly replaced. The present invention relates to a roving thread hanging device for a roving guide of a spinning machine.

[Prior Art] In recent years, automation has progressed in spinning factories, and automation of roving replacement work has also been proposed in the spinning process. (For example, JP-A-58-81631 and JP-A-61-119728).
These roving changers perform the replacement work between the preliminary roving winder suspended on the creel and the roving winder being spun near the sky from one end to the other end of the spinning machine. The roving splicing operation between the roving yarn of the roving roll and the roving yarn of the preliminary roving roll being spun is manually performed before, and there is a problem that a lot of labor is required for the roving splicing. To solve this problem, Japanese Unexamined Patent Publication (Kokai) No. 62-57957 proposes a roving changer having a function of automatically performing a roving joining operation as well as a roving changing operation. When the roving splicing operation is also automated in this way, it is necessary to provide a roving thread hooking device for hooking the roving thread connected from the roving thread to the roving guide suspended on the creel during the roving thread replacement operation. There is. In the conventional device described above, the roving hook plate is moved and arranged by the cam link mechanism to a position near the roving winding and a position near the roving guide after roving splicing is completed.

[Problems to be solved by the invention] However, in a spinning machine in which the roving yarn changing operation is performed by the roving yarn changing machine, the roving guides are generally one set of two weights and are arranged at predetermined intervals in the longitudinal direction of the spinning machine. There is a huge number.
The roving guide is supported by a creel boom that is horizontally attached to the creel pillar, and is designed inexpensively because of the product cost. It is almost impossible to position each roving guide at an accurate position. Is. In addition, the roving guide cannot be made too large due to the restriction of the roving yarn traveling line and the cost, and the guide port for the roving yarn cannot be made so large. Then, in the roving guide hooking device for the roving guide installed in the conventional roving guide changer, the roving guide plate is moved by the link mechanism to the vicinity of the roving guide in a plane orthogonal to the longitudinal direction of the spinning frame. Due to the arrangement, the roving guide and the roving hook plate may not be reliably hooked on the roving guide when the positional relationship between the roving guide and the roving hook plate is displaced in the longitudinal direction of the spinning machine.

The present invention has been made in view of the above problems, and an object thereof is to ensure that the roving guide is reliably moved even if the positional relationship between the roving guide and the roving guide is displaced in the longitudinal direction of the spinning machine. An object of the present invention is to provide a roving thread hooking device for a roving guide of a spinning machine capable of roving thread hooking.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, the auxiliary roving spool that is moved along the longitudinal direction of the spinning machine base and hung on the creel of the spinning machine approaches the sky. The roving guide is equipped with a roving yarn exchanging device for exchanging roving yarn during spinning and a roving yarn splicing device for splicing roving yarn. A rotatably provided supporting arm equipped with a roving thread hooking guide at the tip, and the roving thread hooking guide hangs the roving thread at a retracted position where it does not hinder the movement of the roving thread changer. A driving device for rotating the support arm for moving to the position is provided, and the roving guide is engaged with the roving guide to position the roving guide with respect to the roving guide during roving. Position to do A deciding member is provided.

Further, the roving guide may be mounted on the support arm so as to be rotatable in the forward and reverse directions, and may be driven by a drive device independent of the drive device for the support arm.

[Operation] In the device of the present invention, when the support arm is rotated from the retracted position to the operation position, the roving thread hooking guide engages with the roving thread during the rotation, and the roving thread corresponds to the roving guide. Lead to position. Since the roving thread guide is equipped with a positioning member, even if the position of the roving guide and the roving thread guide shifts in the longitudinal direction of the spinning machine, the roving guide moves along with the rotation of the support arm. First, the positioning member engages with the roving guide to position the roving guide with respect to the roving guide. Therefore, the roving yarn which is engaged with the roving yarn hooking guide and guided to the roving guide is surely guided to a predetermined position of the roving guide to carry out roving yarn hooking.

Further, in the apparatus according to the second aspect, since the roving thread hooking guide is rotated by a device independent of the drive device for the support arm, the degree of freedom of timing of roving thread hooking by the roving thread hooking guide with respect to the roving guide is increased. As a result, the roving can be hooked more reliably.

[Embodiment 1] An embodiment embodying the present invention will be described below with reference to the drawings.

As shown in FIG. 2, in the creel 1 of the spinning frame, two rows of inner and outer roving winding rails 2 and 3 are arranged parallel to the machine base longitudinal direction on both left and right sides (only one side is shown) of the base. A creel rail 4 is arranged between the bobbin winding rails 2 and 3 in parallel with the longitudinal direction of the base. The roving winding rails 2 and 3 are equipped with bobbin hangers 2a and 3a at predetermined intervals which are twice the spindle pitch, respectively. A support shaft 6 is fixed to the creel rail 4 in a state of extending downward at a predetermined interval which is twice the spindle pitch, and a support bracket 7 is rotatably supported at each base end of each support shaft 6. A mounting rod 8 is fixed to the tip of the support bracket 7 in a state of vertically extending,
A roving guide 9 is fixed to the lower end of the mounting rod. Then, the roving R drawn from the roving spool suspended from the bobbin hangers 2a and 3a is guided to the trumpet 5a of the draft part 5 through the roving guide 9. The support bracket 7 is always held in a position parallel to the creel rail 4 by the action of a spring (not shown). As shown in FIG. 6, the roving guide 9 has guide recesses 10 on both left and right sides with the mounting rod 8 as the center.
a, 10b are formed, and when the support bracket 7 extends in parallel with the creel rail 4, that is, in a state in which the support bracket 7 is arranged at a predetermined position during normal spinning, the roving introduction ports 11a, 11a, 11b is formed.
Further, a support bracket 12 is further extended outward on the creel 1, and a transport rail 13 is provided at the tip thereof on the roving winding rail.
It is extended in parallel with a few. A carrier 14 having a bobbin hanger 14a is movably supported on the carrier rail 13.

A roving changer that moves along a spinning frame to change roving
A roving yarn 15 is composed of, for example, a residual roving yarn bobbin transfer device 16 and a full roving yarn winding transfer device 17 (shown in FIG. 1) having the same configuration as the device disclosed in Japanese Patent Laid-Open No. 61-119728. Equipped with a switching device. Further, the roving yarn changer 15 is provided with a roving yarn splicing device (not shown) for performing a roving yarn splicing operation before the roving yarn winding operation is performed by the roving yarn exchanging device. The roving yarn hooking device 18 is disposed above the rear portion of the roving yarn changing machine 15 in the traveling direction during the roving yarn changing operation. A rotating shaft 20 is supported on the upper end of a support bracket 19 fixed to the upper surface of the roving changer 15 in a state of extending in parallel with the moving direction of the roving changer 15, and a support arm 21 is provided at one end of the rotating shaft 20.
Is integrally rotatably fitted and fixed at its base end, and a pulley 22 is integrally rotatably fitted and fixed to the other end of the rotary shaft 20. An arm drive motor is provided on the upper end of the support bracket 19.
A timing belt 25 is wound around the drive pulley 24 fixed to the drive shaft of the drive motor 23 and the pulley 22.

As shown in FIGS. 3 and 4, the driven shaft 26 is attached to the tip of the support arm 21.
Are rotatably supported via bearings 27. Support arm
A coarse yarn hooking guide drive motor 29 is fixed to a substantially intermediate portion of the bracket 21 via a bracket 28, and a pulley 30 fitted and fixed to a drive shaft of the motor 29 and a pulley 31 fitted and fixed to the driven shaft 26. A timing belt 30 is wound between them.
As shown in FIG. 5, a flat mounting portion 26 is provided at one end of the driven shaft 26.
a is projected, and the roving guide 33 is attached to the tip of the mounting portion 26a.
A movable rod 34 to which is fixed is rotatably supported at its base end via a shaft 35. A movable rod support bracket 36 for supporting the movable rod 34 with its axis aligned with the axis of the driven shaft 26 is fixed to the tip of the support arm 21. An accommodating portion 37 for accommodating the movable rod 34 is formed on the support bracket 36, and a guide surface 37a is formed on the upper portion of the accommodating portion 37. Further, a leaf spring 38 for urging the movable rod 34 always in a direction away from the support arm is fixed to the driven shaft 26.

Further, in order to prevent the movable rod 34 from interfering with the residual roving bobbin transfer device 16, the roving changer 15 engages with the movable rod 34 to move the movable rod from the horizontal state to the support arm 21 side. A cam rod 39 for moving to the rotated retracted position is fixed at a predetermined position via a bracket 40.

The roving guide 33 is formed of a plate material that is bent in a V-shape on the side surface and has a pair of V-shaped guide portions 33a at the tip. When the roving thread hooking guide 33 is hooked with the roving thread, the roving thread hooking guide 33 is engaged with the roving guide 9 before being positioned at the roving thread hooking position to position the roving thread hooking guide 33 with respect to the roving guide 9. The positioning member 41 is fixed. The positioning member 41 is provided with a pair of restricting pieces 41a which are arranged at intervals substantially equal to the width of the roving guide 9 and which are formed so as to expand from the base end toward the tip.

Next, the operation of the device configured as described above will be described. When the roving reel suspended on the creel approaches the sky, the roving changer 15
Moves intermittently from the base end of the spinning frame to start roving replacement work. The roving changer 15 stops at a predetermined roving change position, and in that state, first, the full roving winding transfer device 17 is driven and the full bobbin 42 as a preliminary roving wound on the transport rail 13 is suspended from the bobbin hanger. Removed from 14a, the two preliminary roving spools are arranged in a state in which they are substantially orthogonal to the longitudinal direction of the spinning frame. Next, a roving joining device (not shown) performs a roving joining operation between the roving winding being spun and the roving connected to the draft part 5 and the roving of the full bobbin 42, resulting in the state shown in FIG.

Next, the arm drive motor 23 of the roving thread hanging device 18 is driven to rotate in the forward direction, and the support arm 21 rotates counterclockwise in FIG. 2 together with the rotary shaft 20 via the drive pulley 24, the timing belt 25 and the pulley 22. To be done. With the rotation of the support arm 21, the engagement position between the rotation rod 34 and the cam rod 39 moves downward,
The movable rod 34, which is held in a state of being rotated from the horizontal position to the support arm 21 side against the biasing force of the leaf spring 38 by the action of the cam rod 39, moves counterclockwise in FIG. When the movable rod support bracket 36 is rotated,
Be guided to. Since the guide surface 37a is provided on the upper portion of the accommodating portion 37, even when the movable rod 34 is slightly displaced from the accommodating portion 37, it is smoothly guided into the accommodating portion 37 by the action of the guide surface 37a. Then, as shown in FIG. 7 (a), the movable rod 34
The drive of the arm drive motor 23 is stopped when the movable rod 34 is rotated to a position where the engagement between the cam rod 39 and the cam rod 39 is released.

In this state, the roving guide driving motor 29 is driven to rotate normally, and the driven shaft 26 is rotated integrally with the movable rod 34 in the clockwise direction of FIG. 7 (a) via the pulley 30, the timing belt 32 and the pulley 31. Be moved. As a result, the roving thread hooking guide 33, which has been in a state of extending substantially parallel to the support arm 21 until then, is pivotally arranged at the position shown by the solid line in FIG. 7 (a). Next, the arm drive motor 23 is further driven in the normal direction, and the support arm 21 is further rotated counterclockwise.
During this rotation, the roving threads R connected to the draft part 5 from the two full bobbins 42 are respectively guided to the pair of guide portions 33a of the roving thread hooking guide 33 to be in a state of engaging with the roving thread hooking guide 33. . Then, when the support arm 21 is pivotally arranged to the position shown in FIG. 7 (b) where the roving thread hanging guide 33 is arranged at the working position where the roving thread R is hooked on the roving guide 9, the arm drive motor is driven. 23 is stopped. In this state, the drive motor 29 is driven in the forward direction again, and the roving guide 33 is rotated clockwise from the position indicated by the chain line. As a result, the roving guide 33 has its guide portion 33a.
Is arranged at a position corresponding to the upper surface of the roving guide 9, and during the rotation thereof, the roving thread R connected to the draft part 5 via the guide portion 33a moves from the roving thread introduction ports 11a, 11b of the roving guide 9 to the guide recesses 10a, 10b. Will be guided to.

When the position of the roving guide 9 and the position of the roving thread hooking device 18 are deviated in the longitudinal direction of the spinning frame, the roving thread hooking guide 33 is moved clockwise from the position shown by the chain line in FIG. 7 (b). The regulating piece 41a of the positioning member 41 first engages with the roving guide 9 while being rotated to the position
With the rotation of 33, the roving guide 9 and the roving guide 33
When the relative position of the roving thread moving guide 33 moves along the longitudinal direction of the spinning machine stand and the roving guide 33 turns to a predetermined position, the guide section
33a comes to correspond to the roving guide 9 at a predetermined position. Therefore, the roving R extending from the guide portion 33a of the roving guide 33 to the draft part 5 is reliably guided to the guide recesses 10a and 10b of the roving guide 9. Next, the drive motor 29 is driven in reverse, and the roving guide 33 is rotated counterclockwise in FIG. 7 (b) to move to the retracted position extending substantially parallel to the support arm 21. As a result, the engagement between the roving thread hooking guide 33 and the roving thread R is released, and the roving thread R is hooked on the roving guide 9.

Next, the arm drive motor 23 is reversely driven, and the support arm 21
Is rotated from the position shown in FIG. 7 (b) to the retracted position shown in FIG. The movable rod 34 starts to engage with the cam rod 39 during the rotation, and the support arm 21 is rotated with the movable rod 34 and the cam rod 39 engaged with each other, so that the movable rod 34 becomes horizontal about the shaft 35. It is arranged at a position where it is rotated from the position to the support arm 21 side and does not hinder the operation of the residual roving bobbin transfer device 16. In addition, while the roving thread hooking guide 33 is rotated from the state where the roving thread R connected to the draft part 5 is engaged with the guide portion 33a of the roving thread hooking guide 33 to the roving thread hooking position, the full bobbin 42 is moved. In order to prevent tension from being applied to the roving R from the draft part 5 to the draft part 5, the full bobbin 42 is rotated in the direction of sending out the roving R at a speed faster than the spinning speed as the roving guide 33 moves. It is like this.

Second Embodiment Next, a second embodiment will be described with reference to FIG. In this embodiment, the structure of the roving yarn hooking device 18 is the same as that of the device of the above-mentioned embodiment, but the timing of performing the roving yarn hooking operation by the roving yarn hooking device 18 is different from that of the above embodiment. That is, in the above-mentioned embodiment, after the roving joining operation between the roving (old roving R1) connected to the draft part 5 and the roving R of the full bobbin 42 from the roving winding being spun by the roving joining device is completed, While the roving thread hooking operation is performed by the roving thread hooking device 18, the present embodiment is greatly different in that the roving thread hooking operation is performed before the roving thread hooking operation is started by the roving thread hooking device.

To explain the work sequence, first, the residual roving bobbin transfer device 16
Is operated to remove the residual roving bobbin B from the bobbin hangers 2a, 3a of the creel 1, and the bobbin B is arranged at the position shown by the chain line in FIG. At this time, the remaining roving bobbin B to the trumpet 5a
The old roving R1 connected to is cut, and spinning is continued in a state of hanging from the trumpet 5a. Remaining roving bobbin B
It is desirable that the old roving R1 connected to the trumpet 5a is cut at a predetermined position. For that purpose, JP-A-62-223327 is used.
The residual roving bobbin transfer device 16 may be equipped with a roving cutting means similar to that disclosed in Japanese Patent Laid-Open Publication No.

Next, as shown in FIG. 9, the roving yarn R drawn from the full bobbin 42 is held by the roving yarn splicing head 44 of the roving yarn splicing device 43, and the roving yarn hooking device 18 is actuated to operate the above-described embodiment. Similarly to the above, the roving thread hooking operation is performed on the roving guide 9.

In order to smoothly perform the roving splicing operation by the automatic machine, when the length of the portion protruding from the trumpet 5a of the old roving R1 which has been spun continuously after cutting reaches a predetermined length, Trumpet the end of the roving R to be newly spliced
Must be inserted in 5a. Therefore, after cutting the old roving R1, a waiting time is required before performing the roving joining operation. In this embodiment, since the roving thread hanging operation can be performed during the waiting time, the roving thread changing operation time by the roving thread changing machine 15 can be shortened.

The present invention is not limited to the above embodiment,
For example, as in the roving yarn changer disclosed in Japanese Patent Laid-Open No. 58-81631, roving yarn exchange for exchanging a residual roving yarn bobbin suspended on the roving yarn side of a creel with a preliminary roving roll. In the case of a roving yarn changer equipped with a device, it is not necessary to rotate the movable rod 34 toward the support arm 21 side in the housed state, and the movable rod 34 is always configured to be orthogonal to the support arm 21. May be. Further, even if the support arm 21 and the roving thread hooking guide 33 are arranged to rotate between a retracted position and a roving thread hooking position by a link mechanism as in the device disclosed in Japanese Patent Laid-Open No. 62-57957. Good.

[Advantages of the Invention] As described in detail above, according to the present invention, even when the roving thread hooking operation is performed in a state where the roving thread hooking device and the roving guide are displaced in the longitudinal direction of the spinning machine stand. Since the positioning member provided on the roving thread hanging guide always positions the roving thread hanging guide and the roving guide at a predetermined position when the roving thread is hooked, the roving thread can be reliably hooked on the roving guide. You can In addition to the effects described above, in the apparatus according to the second aspect, the roving guide is rotatable independently of the support arm, so that the operating angle,
The operation timing can be freely changed, and the roving thread can be hooked more reliably on the roving guide.

[Brief description of drawings]

FIG. 1 is a rear view, FIG. 2 is a side view, FIG. 3 is a cross-sectional view of an essential part showing a supporting state of a movable rod, and FIG. 4 is AA of FIG.
5 is a sectional view taken along the line BB in FIG. 3, and FIG.
The figure is a schematic perspective view of the roving guide, FIG. 7 (a),
FIG. 8B is a side view showing the operation, FIG. 8 is a rear view corresponding to FIG. 7B, and FIG. 9 is a side view showing the roving thread hooking state of the second embodiment. Creel 1, draft part 5, roving guide 9,
Rough yarn changer 15, residual roving bobbin transfer device 16, roving transfer device 17, full roving winding device 18, supporting arm 21, rotary shaft 20 constituting drive device, pulley 22, arm drive motor 23, drive pulley 24, timing belt 25, drive motor 29 that constitutes the drive device for the roving guide, pulley 3
0, 31, timing belt 32, roving thread hooking guide 33, guide portion 33a, positioning member 41, restriction piece 41a, roving thread R.

Claims (2)

[Scope of utility model registration request] 1. A roving exchange which moves along a longitudinal direction of a spinning machine stand and performs an exchange operation of a preliminary roving winding suspended from a creel of a spinning machine and a roving winding during spinning which is nearly empty. A support arm equipped with a roving guide on the tip of a roving changer equipped with a device and a roving splicing device for splicing roving onto a roving guide suspended from a creel. And a rotatably provided drive device for rotating the support arm for moving and arranging the roving guide to a retracted position where the roving guide does not hinder the movement of the roving changer and an operating position where the roving is hooked on the roving guide. A roving yarn hooking device for a roving guide of a spinning machine, which is provided with a positioning member for engaging the roving guide with the roving yarn hooking guide to position the roving yarn hooking guide with respect to the roving guide when hooking the roving yarn. 2. The roving of the spinning machine according to claim 1, wherein the roving guide is mounted on the support arm so as to be rotatable forward and backward, and is driven by a drive device independent of a drive device of the support arm. A roving thread hooking device for the guide.