JPH055231A - Apparatus for preventing roving end from unwinding - Google Patents

Abstract

PURPOSE:To eliminate need for feeding electric powder to a lifting and lowering member by providing a movable frame capable of approaching to the lifting and lowering member of roving bobbins with a device for rotating and driving pegs and a device for pressing the roving in a specific states. CONSTITUTION:Each peg 14 on which a full bobbin (F) is to be mounted is rotatably installed in a lifting and lowering member 10 and a movable frame 25 is provided so as to be movable from an operating position approaching to the lifting and lowering member and a standby position separated from the aforementioned position. The movable frame is equipped with a pressure contact roller 20 for engaging with each peg 14 and rotating and driving the peg at the operating position and a pressing device 44 for pressing the roving of the bobbin (F) at the standby position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roving end unwinding preventing device for a roving bobbin which is fried by a roving machine.

[0002]

2. Description of the Related Art In recent years, labor saving has progressed in spinning factories, and automation of connection and conveyance between respective processes has been implemented.
Automation has also been proposed for the connection between the roving and spinning processes and the transport of the roving bobbin. Then, the roving yarn is conveyed between the roving and the spinning process in a state where the roving bobbin is hung on a conveyer which moves along a conveyer path which is generally installed on the ceiling (for example, Japanese Patent Laid-Open No. 50-76340). See Japanese Patent Application Laid-Open No. 61-194228, etc.). However, the roving bobbins fried by the roving machine do not have enough roving ends attached to the outer circumference of the roving winding, so vibration during the conveyance of the roving bobbins or standby on the preliminary roving winding rail of the spinning machine creel. In such a case, there is a problem that the end of the roving yarn hangs apart from the surface of the roving yarn and causes a problem when the roving yarn bobbin is transported or when the roving yarn is changed by a spinning machine.

A device for solving this problem is disclosed in Japanese Patent Laid-Open No. 63-63
No. 6122, a bobbin lifting device is arranged at an end of a conveyor device that conveys a doffed roving yarn bobbin, and the roving bobbin is arranged by the bobbin lifting device on a transport rail installed on the ceiling. There has been proposed a device for preventing the unraveling of the roving thread end by pressing the roving thread end of the roving thread bobbin against the outer peripheral surface of the roving thread while being transferred to the conveyed carrier. As shown in FIG. 6, this device has a pair of pegs 52 rotatably mounted on an elevating member 51 of a bobbin elevating device 50, and can be positively driven by a motor 53 mounted integrally movable with the elevating member 51. Is configured. or,
Leaf springs 55, which are in contact with the outer peripheral surface of the roving bobbins 54 mounted on the pegs 52, are fixed to both sides of the elevating member 51 so as to move integrally with the elevating member 51. Leaf spring 5
5, an engaging piece 56 having an engaging hole at its tip is integrally fixed, a frame 57 of the elevating device 50 has an engaging pin 58 engageable with the engaging hole, and an elevating member 51 has a rough structure. Thread bobbin 5
4 is fixed to a position for engaging the engaging hole and holding the leaf spring 55 at a position where it cannot engage with the roving bobbin 54 when the 4 is attached to the peg 52 in the lowered position. And
In this device, the elevating member 5 is mounted on the peg 52 in a state where the elevating member 51 is arranged in the lowered position and the leaf spring 55 cannot engage with the outer peripheral surface of the roving bobbin 54, and then the elevating member 5 is moved.
1 is lifted and the engagement between the engagement hole and the engagement pin 58 is released, the leaf spring 55 is pressed against the outer peripheral surface of the roving bobbin 54, and the motor 53 is driven to drive the roughing together with the peg 52. The yarn bobbin 54 is rotated so that the end of the roving yarn is pressed against the outer peripheral surface of the roving spool.

[0004]

However, in the above-mentioned conventional apparatus, the motor 53, which is the drive source of the peg 52, is mounted on the elevating member 51 which moves a considerable distance (about 1,5 m). The electric wire for supplying electric power to the electric wire moves largely as the elevating member 51 moves up and down, which makes it difficult to process the electric wire. Further, since the elevating member 51 is equipped with the leaf spring 55 which is a roving thread end pressing device, the leaf spring 55 is separated from the outer peripheral surface of the roving bobbin 54 mounted on the peg 53 for each leaf spring 55. A device (engaging piece 56 that is placed at the retracted position
Also, it is necessary to provide the engaging pins 58), and there is a problem that the device becomes complicated when a large number of roving bobbins are simultaneously moved up and down.

The present invention has been made in view of the above problems, and an object of the present invention is to simplify electric wire processing without supplying electric power to a device that travels a long distance.
It is an object of the present invention to provide a roving yarn end unwinding prevention device which simplifies the structure of the device for pressing the roving yarn end even in the device for raising and lowering a large number of roving yarn bobbins at once.

[0006]

In order to achieve the above-mentioned object, in the present invention, an elevating member of an elevating device for delivering a roving bobbin fried by a roving machine to a carrier arranged at a high place, A peg on which the lower part of the roving bobbin is mounted is rotatably provided, and a movable frame movable to a working position approaching the elevating member moved and arranged at a predetermined position of the elevating path and a standby position separated from the position is provided. A drive device that engages with a peg provided on the elevating member when the frame is placed in the working position, and drives the peg to rotate when the frame is placed in the working position; A pressing device for contacting the outer surface of the roving bobbin attached to the peg and pressing the roving is provided.

[0007]

In the apparatus of the present invention, when the raising / lowering member is arranged at the predetermined position with the roving bobbin attached to the peg mounted on the raising / lowering member, the moving frame is arranged at the working position. When the moving frame is placed in the working position, the driving device engages with the peg, and the pressing device comes into contact with the outer surface of the roving bobbin to press the roving. In this state, the peg is rotated by the drive of the driving device, the roving bobbin is rotated together with the peg, and the roving end is pressed against the outer peripheral surface of the roving winding by the action of the pressing device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in a pipe changing machine for intermittently moving along a roving machine stand to perform a pipe changing operation will be described with reference to FIGS. As shown in FIG. 3, bobbin wheels 4 are arranged on the bobbin rails 3 of a roving machine stand 2 equipped with an upper-supporting flyer 1 in a zigzag pattern in front and rear rows. Above the front side (on the right side in FIG. 3) of the roving machine base 2, a carrier rail 5 reaching the spinning machine is installed in parallel with the roving machine base 2, and the carrier rails 5 are equipped with bobbin hangers 6 at a predetermined pitch. A bobbin carrier 7 is provided so that it can travel freely.

A rail 8 laid in parallel with the roving machine base 2.
The tube changer 9 which moves intermittently along the
The empty bobbin lifter that is installed above the front of the bobbin carrier 7 waiting on the transport rail 5 and that lowers the empty bobbin E to the lower position, and the empty bobbin E of the bobbin carrier 7 is removed from the full bobbin F. A bobbin lifting device including a full bobbin lifter that is mounted on the full bobbin lifter, and the full bobbin F is taken out from the bobbin rail 3 and placed on the full bobbin transfer elevating member 10 of the full bobbin lifter. The empty bobbin E is taken out from the empty bobbin transfer elevating member 11 and is mounted on the bobbin rail 3. The empty bobbin lifter lifting mechanism, the full bobbin lifter lifting mechanism, and the pipe changing mechanism 12 have the same configurations as those of the device disclosed in Japanese Patent Laid-Open No. 61-119730, and a description thereof will be omitted. In addition,
The pipe changing mechanism 12 is capable of simultaneously taking out three full bobbins F in the front row and the rear row from the bobbin rail 3 at a time.
Equipped with 3.

As shown in FIG. 2, six pegs 14 are arranged in a zigzag pattern on the bobbin rail 3 at the same pitch as the bobbin wheel 4 on the elevating member 10 for transferring the full bobbin. or,
Six pegs 15 are also arranged in a staggered manner on the empty bobbin transfer lifting member 11 at the same pitch. As shown in FIG. 4, the peg 14 provided on the lifting and lowering member 10 for transferring the full bobbin rotates integrally with the upper portion of a shaft 17 rotatably supported by a bearing 16 with respect to the lifting and lowering member 10 for transferring the full bobbin. It is fixed as possible. A two-stage pulley 18 is fitted and fixed to the lower end of each shaft 17 so as to be integrally rotatable,
As shown in FIG. 2, a belt 19 is wound around adjacent pulleys 18, and one peg 14 is driven to drive all pegs 1.
4 can rotate in the same direction at the same time. Further, the flange portion 14a of one peg 14 which can be engaged with the contact pressure roller 20 described later is formed wide.

As shown in FIG. 3, in the pipe changer 9, the roving end is unwound to a position above the pipe change mechanism 12, which is a position corresponding to a predetermined temporary stop position in the ascending stroke of the elevating member 10 for transferring the full bobbin. A prevention device body 21 is provided. As shown in FIG. 1, a pair of slide rails 24 are attached to a pair of support brackets 22 fixed to a frame (not shown) of the pipe changer 9.
Is supported slidably via a bearing 23 in a direction orthogonal to the longitudinal direction of the lifting and lowering member 10 for transferring the full bobbin. A moving frame 25 is fixed to the lower surfaces of both slide rails 24, and one rack 26 is attached to the lower surfaces of the slide rails 2.
It is fixed so as to extend along 4. A motor 27 capable of rotating in the forward and reverse directions is provided at a predetermined position on the lower side of the rack 26.
Is fixed to a bracket (not shown) fixed to the pipe changer 9, and a pinion 28 meshing with the rack 26 is fitted to the drive shaft thereof.

The moving frame 25 is equipped with a driving device for driving the peg 14 to rotate. 2 and 4
As shown in FIG. 3, a rotating shaft 30 is supported by a cylindrical housing 29 fixed to the lower surface of the moving frame 25 via a bearing 31, and a bracket 32 is provided on the upper surface of the moving frame 25 corresponding to the housing 29. The peg driving motor 33 is fixed. The upper end of the rotary shaft 30 is connected to the drive shaft 33a of the motor 33 via a coupling 34, and the lower end thereof is fitted with and fixed to a drive pulley 35. A lever 37 is attached to the housing 29 via a bearing 36.
Is rotatably supported, and the contact roller 20 is rotatably supported via a bearing 39 on a column 38 fixed to one end of a lever 37. The contact roller 20 is formed with a large diameter portion 20a that engages with the collar portion 14a of the peg 14 and a belt hanging portion 20b having a diameter smaller than the large diameter portion 20a, and a belt between the belt hanging portion 20b and the drive pulley 35. 40 is wrapped around. The outer peripheral portion of the large diameter portion 20a is formed of a material such as rubber having a large frictional resistance. Further, a tension spring 43 is stretched between a latching pin 41 protruding from the other end of the lever 37 and a latching pin 42 protruding from the lower surface of the moving frame 25. The pressure contact roller 20 and the housing 2
A drive device for rotationally driving the peg 14 is constituted by the peg driving motor 33, the drive pulley 35, the lever 37, the tension spring 43, and the like.

When the moving frame 25 is placed in the operating position on the upper surface of the moving frame 25, the moving frame 25 comes into contact with the outer surface of the full bobbin (roving yarn bobbin) F mounted on the peg 14 to press the roving yarn. A single pressing device 44 is fixed at a position corresponding to the arrangement of the pegs 14. As shown in FIGS. 5A and 5B, the pressing device 44 includes a support lever 46 rotatably supported by a shaft 45 a protruding from a bracket 45 fixed to the moving frame 25, and a support lever 46. And a pressing plate 47 rotatably supported via a shaft 47a. The support lever 46 is rotationally biased by a spring 48a, and the lower end thereof is adjusted by a adjusting bolt 49a.
Is held at the position where it abuts against. The pressing plate 47 is urged to rotate by a spring 48b, and its rear surface comes into contact with the adjusting bolt 49b to restrict the rotation.

Next, the operation of the apparatus constructed as described above will be described. When the roving machine base 2 is fully stopped and pipe replacement work is required, the pipe replacer 9 moves along the rail 8 and stops at a predetermined pipe replacement position. In this state, the empty bobbin lifter is first actuated to move the empty bobbin transfer elevating member 11 upward, and the peg 15 is fitted into the bottom of the empty bobbin E suspended from the bobbin carrier 7. Next, the pipe changing mechanism 12 is operated so that the full bobbin F on the bobbin rail 3 is pulled out from the bobbin wheel 4 and arranged at a position corresponding to the peg 14 of the elevating member 10 for transferring the full bobbin. In this state, the full bobbin transfer elevating member 10 is moved upward, the bottom portion of the full bobbin F is fitted into the peg 14, and the pipe changing mechanism 12 moves to the standby position. After the empty bobbin transfer elevating member 11 is moved down to a position that does not hinder the upward movement of the full bobbin transfer elevating member 10, the full bobbin transfer elevating member 1 is moved.
0 is further moved up, and the peg 14 of the lifting member 10 is moved.
The full bobbin F fitted into the bobbin carrier 7 is suspended on the bobbin hanger 6 from which the empty bobbin E of the bobbin carrier 7 has been removed. or,
The empty bobbin E on the empty bobbin transfer elevating member 11 is transferred from the peg 15 onto the bobbin wheel 4 by the action of the pipe changing mechanism 12.

The elevating member 10 for transferring the full bobbin has a peg 14
The full bobbin F mounted on the bobbin carrier 7 is temporarily stopped during the ascending stroke for suspending the full bobbin F on the bobbin hanger 6 of the bobbin carrier 7 located above. The temporary stop position is set to a height at which the collar portion 14a of the peg 14 can come into contact with the contact pressure roller 20. Then, the motor 27 is driven in the forward direction to rotate the pinion 28 while the elevating member 10 for transferring the full bobbin is temporarily stopped.
By the action of the rack 26, the moving frame 25 is moved toward the full bobbin transfer elevating / lowering member 10 side, and is stopped at a predetermined action position shown by a solid line in FIG. Moving frame 25
The contact pressure roller 20 moves to the peg 1 shortly before reaching the operating position.
4 is brought into contact with the collar portion 14a of the movable frame 2
When 5 is stopped at the working position, the contact pressure roller 20 is held in a state of being pressed against the flange portion 14a of the peg 14 by the urging force of the tension spring 43.

In the free state of the pressing plate 47 of the pressing device 44, the upper side of the pressing plate 47 is inclined forward as shown by the chain line in FIG. When stopped at a predetermined position, the pressing plate 47 is in a state shown by the solid line in FIG. 5A against the biasing force of the spring 48b and presses the outer surface of the full bobbin F.

Next, the peg driving motor 33 is driven,
Contact roller 20 via drive pulley 35 and belt 40
Is rotated. Then, as the contact roller 20 rotates, the peg 14 to which the contact roller 20 is pressed is driven, and all the pegs 1 are passed through the pulley 18 and the belt 19.
4 is rotated in the same direction. The full bobbin F is rotated along with the rotation of the peg 14, and the pressing plate 47 is pressed against the outer surface of the full bobbin F at this time. Therefore, the rotation of the full bobbin F causes the roving end to move to the outer periphery of the full bobbin F. The surface is crimped. After the full bobbin F is rotated once or more, the peg driving motor 33 is stopped and the motor 27 is reversely driven,
The moving frame 25 is moved to the standby position. afterwards,
The full bobbin transfer elevating member 10 is raised again, and the full bobbin F is hung on the bobbin hanger 6.

Since the moving distance of the moving frame 25 is about 15 cm, the electric wire for supplying power to the peg driving motor 33 fixed to the moving frame 25 is processed by the conventional device in which the motor is fixed to the lifting member. It will be easier than.

Further, in the pressing device 44 of this embodiment, the support lever 46 for supporting the pressing plate 47 is rotatably supported around the shaft 45a, so that the inclination of the support lever 46 can be dealt with. The support position of the pressing plate 47, that is, the shaft 47
The position of a changes. Therefore, even if the roving winding diameter of the full bobbin F changes, the pressing plate 47 is surely pressed against the outer peripheral surface of the full bobbin F with its entire pressing surface.

The present invention is not limited to the above-mentioned embodiment, and instead of the pinion 28 driven by the rack 26 and the motor 27, for example, as a driving means for moving the moving frame 25 between the working position and the standby position. A cylinder may be used to connect the piston rod to the moving frame 25. Further, instead of being installed in the pipe changer 9, the present invention can be applied to a bobbin lifting device provided at the end of a belt conveyor extending to the front side of the roving frame, or the bobbin lifting device can be installed at a position away from the roving frame. In addition, it may be applied to a system in which a full bobbin fried by a roving machine is mounted on a carrier and transported to a position corresponding to the bobbin lifting device, and then the full bobbin is hung on the bobbin carrier at the position. ..

[0021]

As described above in detail, according to the present invention, it is not necessary to supply electric power to a device that travels a long distance, electric wire processing is easy and inexpensive, and a large number of roving bobbins are moved up and down at a time. Also in the device for performing the above, the structure of the device for pressing the roving yarn end is simplified.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a partially omitted plan view of the same.

FIG. 3 is a schematic side view showing a positional relationship between a roving frame and a pipe changer.

FIG. 4 is a cross-sectional view of a main part of a peg drive device.

5A is a side view of the pressing device, and FIG. 5B is a rear view of the pressing device.

FIG. 6 is a front view of a conventional device.

[Explanation of symbols]

2 ... Rover frame stand, 9 ... Tube changer, 10 ... Full bobbin transfer lifting member, 12 ... Tube change mechanism, 14 ... Peg, 21 ... Rough yarn end unwinding prevention device main body, 25 ... Moving frame, 20 ... Pressure contact roller which constitutes peg drive device, 29 ... Similarly housing, 33 ... Same motor, 35 ... Same drive pulley, 3
7 ... Lever, 44 ... Pressing device, 47 ... Pressing plate,
F ... Full bobbin.

Claims (1)

Claim: What is claimed is: 1. An elevating member of an elevating device for delivering a roving bobbin fried by a roving spinning machine to a carrier arranged at a high place,
A movable frame provided with a peg on which the lower part of the roving bobbin is mounted so as to be rotatable, and movable to a working position approaching the elevating member movably arranged at a predetermined position of the elevating path and a standby position separated from the position. A drive device that engages with a peg provided on the elevating member to drive the peg to rotate when the frame is placed in the working position; and a moving frame when the moving frame is placed in the working position. A roving yarn end unwinding prevention device, comprising: a pressing device that comes into contact with an outer surface of a roving yarn bobbin attached to the peg to press the roving yarn.