JPH11293537A - Beam axle holding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beam axle holding apparatus for a warper, having a simple structure, accurately holding a beam axle and capable of neatly winding a warp in high winding accuracy. SOLUTION: This beam axle holding apparatus 10 for a preparatory machinery for weaving for attaching a weaving beam 12 is provided with a pair of holding axles 16 positioned on the extension line of a beam axle 14 and a machine casing 18 holding each holding axle 16 in freely rotatable manner. Each holding axle 16 is movable in longitudinal direction by a moving apparatus 84 and a conical taper hole 64 expanding outward is formed at the tip end of each holding axle 16 at the side of the beam axle 14. A cylinder 66 having a tapered side wall fitting to the inner circumference of the taper hole 64 is inserted into the taper hole 64. A slot having a prescribed length is formed on the side wall of the cylinder 66 from the opened side of the taper hole 64. The beam axle 14 can be inserted and held in the cylinder 66.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam bearing device for a weaving preparation machine such as a warp warper, a warp sizing machine and a beam rewinding machine.

[0002]

2. Description of the Related Art Conventionally, a beam bearing device of a weaving preparation machine such as a warp warping machine, a warp sizing machine, a beam rewinding machine, etc. has a fixed bearing fixed to a machine frame and a movable bearing fixed to a fixed bearing in an axial direction. A mechanism is provided for movably fitting, rotatably fitting the entirety of the main shaft to the movable bearing, and providing a mechanism for moving the movable bearing, on which the main shaft is mounted, back and forth in the axial direction. Are linked. A concentric bearing hole is provided on the front surface of the main shaft, into which the center axis of the beam flange outer surface is inserted, and a circular wheel is fitted and fixed to the front end of the main shaft. A drive pin to be inserted into the drive recess on the outer surface protrudes.

[0003] When a beam is attached to the winding portion of the warp, the beam is mounted between the beam bearing devices on both sides of the winding portion, and the movable bearing of the beam bearing device is slid so that the shaft of the holding shaft of the main shaft is rotated. The center axis of this beam is inserted into the hole and at the same time the drive pin is fitted into the drive recess of the beam. Then, the main shaft is rotated by the electric motor to rotate the beam. here,
In order to smoothly insert and extract the beam axis, a predetermined gap is provided between the beam axis and its holding axis so that they can be fitted together.

[0004]

In the case of the above prior art, since the beam rotates with a gap between the beam axis and the holding axis, the beam may be eccentrically rotated, moved or vibrated. there were. Moreover, this makes the winding of the warp around the beam unstable, and the wound warp does not become a perfect circle, the wound warp becomes a polygonal shape, or a so-called rotation spot occurs, Sometimes rewinding was not performed smoothly. Moreover, this hinders the high-speed operation of the weaving preparation machine and impairs the operation efficiency.

Therefore, a beam bearing device for a weaving preparation machine has been proposed as disclosed in Japanese Patent Application Laid-Open No. 5-272022. In this method, a tapered hole is provided at the end of the holding shaft, and a cylindrical body whose outer shape is substantially the same as this taper and whose inner diameter can be enlarged and reduced is inserted into the tapered hole, and the beam shaft is fitted to the cylindrical body. In this case, the inner diameter of the cylindrical body is reduced to eliminate a fitting gap between the cylindrical body and the beam axis, thereby preventing misalignment between the two axes.

However, what is disclosed in this publication is an air cylinder for moving a cylindrical body in the axial direction,
By providing a special mechanism such as a piston rod and lever, the inner diameter of the cylindrical body can be enlarged or reduced, so a mechanism for moving the movable bearing and a mechanism for moving the cylindrical body in the axial direction are required. The device was complicated and expensive.

The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure, can accurately hold a beam axis, has high winding accuracy, and can clean a warp. An object of the present invention is to provide a beam axis holding device for a warper.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a beam bearing device for a weaving preparation machine such as a warp warper to which a beam for weaving is attached. A machine frame for rotatably holding each holding shaft is provided, and a rotating member slidable in the axial direction and rotatable integrally with the holding shaft is provided on an outer peripheral side of each holding shaft, A moving device such as a fluid cylinder for moving each of the holding shafts in the axial direction is provided. A rotating disk that abuts a side surface of the beam is integrally formed at the tip of the holding shaft on the beam axis side, and the tip of the beam axis is inserted into the center of the rotating disk. A through hole into which the beam side end of the holding shaft is inserted is formed. Further, the end of the holding shaft is fitted into the through hole,
At the end of the holding shaft, a conical tapered hole extending outward is formed.

A cylindrical body having a tapered side surface along the inner surface of the tapered hole is fitted into the tapered hole.
A plurality of cuts of a predetermined length are formed on the side surface of the cylindrical body from the opening side of the tapered hole. An elastic body, such as a spring, for urging the cylindrical body outward is inserted into the bottom of the tapered hole, and is fixed to at least one of the rotating disk and the holding shaft at a predetermined position on the side surface of the cylindrical body. A locking portion is provided for locking the cylindrical body so as to slightly protrude outside the rotating disk.

The side surface of the cylindrical body has a cylindrical inner wall surface along the beam axis, and an outer wall surface has a truncated cone shape along the inner wall of the tapered hole. While being formed parallel to the axial direction of
It is formed at substantially equal intervals all around the cylindrical body.

The through hole of the rotary disk is a circular hole concentric with the opening of the tapered hole of the holding shaft, and has a large diameter portion and a small diameter portion. The rotary disk is brought into contact with and locked by a step between the large diameter portion and the small diameter portion of the through hole.

In the beam shaft holding device of the present invention, the holding shaft is moved to the beam side, the beam shaft is inserted inside the cylinder, first, the end of the beam comes into contact with the end face of the cylinder, and the cylinder is rotated. It is pushed in the direction of the center, the cylinder is pushed into the tapered hole,
As it slides into the tapered hole, the side surface of the cylindrical body is pressed inward by the inner wall of the tapered hole, the width of the cut formed on the side surface of the cylindrical body becomes narrower, the inner diameter of the cylindrical body becomes concentrically smaller, and the beam axis becomes smaller. Hold concentrically without gaps.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show an embodiment of the present invention. In a warping device (not shown), a beam shaft gripping device 10 of this embodiment includes a beam shaft 14 projecting from both sides of a beam 12 for winding a warp. 1 and 2 show only one side of this beam shaft holding device 10.

The beam axis holding device 10 includes a beam axis 14
A holding shaft 16 for holding and rotating the beam shaft 14 is provided in an extension direction of the holding shaft 16. The holding shaft 16 is attached to a bearing case 20 fixed to a machine frame 18 positioned at right angles to the longitudinal direction of the holding shaft 16. It is held concentrically. Bearing case 20
Project from the machine frame 18 toward the beam 12 and hold the holding shaft 1 inside.
A cylindrical side surface portion 22 for holding the frame 6 and an attachment portion 24 projecting substantially perpendicularly to the outside of the side surface portion 22 and attached to the machine frame 18 with bolts or the like are formed.

A cylindrical rotating member 26 that rotates integrally with the holding shaft 16 is provided between the holding shaft 16 and the bearing case 20, and a ball bearing 2 is provided between the rotating member 26 and the bearing case 20.
The rotating member 26 is rotatably held with respect to the bearing case 20. On the side peripheral surface of the holding shaft 16,
A key groove 30 having a predetermined length is formed along the axial direction. A key 32 integrally attached to the inner peripheral surface of the rotating member 26 is fitted into the key groove 30, and the holding shaft 16 is attached to the rotating member 26. On the other hand, it is slidable in the axial direction and integrally follows the rotational movement of the rotating member 26.

The rotation member 26 is connected to a rotation drive mechanism. At the end of the rotating member 26 opposite to the beam 12, a mounting portion 3 projecting substantially perpendicularly to the axial direction is provided.
The pulley 36 is concentrically attached to the attachment portion 34 with a bolt or the like. The pulley 36 is connected to a motor 40 by a belt 38 and is driven. A brake plate 42 protruding in the circumferential direction is formed concentrically on the entire periphery of the side edge of the pulley 36, and a control device 44 is provided so as to sandwich the brake plate 42. It should be noted that this rotation drive mechanism is merely an example, and a mechanism using another gear drive mechanism or the like may be used, and a control device can be appropriately selected, and is not particularly limited.

A rotating disk 46 is integrally fixed to the end of the holding shaft 16 on the beam 12 side substantially at right angles to the axial direction of the holding shaft 16. The turntable 46 holds the beam 1 with the holding shaft 1.
6, a flange 48 is formed around the beam axis 14 at the end face of the beam 12, and a plurality of pin holes 50 are equally arranged on a predetermined position of the flange 48 on the circumference. Have been. And the beam 12 of the rotating disk 46
The side surface is formed as a contact surface 52 that abuts on the surface of the flange 48, and a drive pin 54 that fits into the pin hole 50 of the flange portion 48 corresponds to the pin hole 50. It is provided. On the opposite side of the contact surface 52 of the turntable 46, a mounting portion 56 is formed along the side surface of the holding shaft 16, and the mounting portion 56 is fixed to the holding shaft 16 with bolts or the like.

A through hole is formed in the center of the rotating disk 46 through which the holding shaft 16 and the beam shaft 14 are inserted. The through hole is formed by a large diameter portion 58 through which the holding shaft 16 is inserted and a large diameter portion 58 on the beam 12 side. The step portion between the large-diameter portion 58 and the small-diameter portion 60 is formed as a contact surface 62 with which a cylindrical body 66 described later contacts. The holding shaft 16 is inserted for a predetermined length in the axial direction of the large-diameter portion 58, and the contact surface 62 of the turntable 46 and the holding shaft 16 are
Are separated by a predetermined distance.

A concentric tapered hole 64 is formed in the end of the holding shaft 16 inserted into the large-diameter portion 58 of the rotating disk 46 in the axial direction, and the inner peripheral surface of the tapered hole 64 faces outward. It is formed in a tapered shape that gradually expands. Further, a cylindrical housing portion 65 is formed continuously at the back of the tapered hole 64.

A bottomed cylindrical body 66 shown in FIG. 3 is inserted into the tapered hole 64. On the side surface of the cylindrical body 66,
Six cuts 68 are provided at substantially equal intervals along the axial direction, and the inner diameter of the cylindrical body 66 is reduced when an external force acts on the cylindrical body 66 in the radial direction, and returns when the external force is removed. The inner peripheral surface of the cylindrical body 66 has a cylindrical shape into which the beam axis 14 is fitted with a slight clearance, and the outer peripheral surface of the cylindrical body 66 extends in an axial direction from an end 72 having an opening 70 of the cylindrical body 66. A small-diameter portion 74 having a predetermined length and being parallel to the inner side surface is formed. Then, following the small diameter portion 74, the cylindrical body 66
A tapered surface 76 is formed toward the bottom direction of. The tapered surface 76 has a taper that expands toward the end 72, and the step between the tapered surface 76 and the small-diameter portion 74 serves as an engaging portion 78 that comes into contact with the contact surface 62 of the turntable 46. A coil spring 80 for urging the cylindrical body 66 outward is provided in the housing portion 65 of the holding shaft 16.

A holding shaft moving device is provided at an end of the holding shaft 16 on the side opposite to the rotary disk 46. In the holding shaft moving device, a cylinder shaft 82 is provided in the axial direction of the holding shaft 16 via a coupling and a nut 88 (not shown), and the cylinder shaft 82 can be moved in the axial direction by a pneumatic or hydraulic cylinder 84. Attached to. And
The cylinder 84 is fixed to a machine frame 86. Note that this holding shaft moving device is merely an example, and any device capable of sliding the holding shaft 16 or the like in the axial direction of the holding shaft 16 may be used.

Next, the operation and operation of the beam axis holding device 10 will be described. First, when the beam 12 before winding the warp is set in the warping device, the holding shaft 16 is retracted by the cylinder 84 to a position away from the beam shaft 14 as shown in FIG. At this time, the cylindrical body 66 inserted into the tapered hole 64 of the holding shaft 16 is urged by the spring 80 so that the end 72 side of the cylindrical body 66 is brought into contact with the contact surface 52 of the rotating disk 46.
From outside, and the locking portion 78 of the cylindrical body 66 is
6, the cylindrical body 66 is locked so as not to come off. At this time, there is no radially inward external force acting on the cylindrical body 66.
Is maintained in a state where the beam shaft 14 is easily fitted.

When the beam 12 is set on the warper, the holding shaft 16 is moved toward the beam 12 while the cylinder 84 is operated to extend the cylinder shaft 82.
First, the beam axis 14 is inserted into the opening 70 of the cylindrical body 66, and the flange 48 of the beam axis 14 is
Contact 2 At this time, since the diameter of the inner peripheral surface of the cylindrical body 66 is large enough to be fitted to the beam axis 14 with a slight clearance, the beam axis 14 smoothly enters the cylindrical body 66. Then, each drive pin 54 is inserted into the pin hole 50 of the flange portion 48. When the holding shaft 16 is further moved toward the beam 12, as shown in FIG. 2, the contact surface 52 of the turntable 46 contacts the surface of the flange 48 of the beam shaft 14,
The cylindrical body 66 is held against the elastic force of the spring 80 until the end 72 thereof is flush with the contact surface 52 of the turntable 46.
6 is pushed into the tapered hole 64. Along with that,
The tapered surface 76 of the cylindrical body 66 is
Abuts against the inner peripheral surface of the cylindrical body 66 and is gradually pressed inward.
Is elastically deformed to reduce the width of the cut 68, and the cylindrical body 66
Is concentrically reduced with the beam axis 14, and the beam axis 14 is concentrically held without any gap.

Next, the pulley 36 is rotated by the motor 40, and the rotary member 26, the holding shaft 16, and the rotary disk 46 are rotated integrally with the pulley 36, and the drive pins 5 provided on the rotary disk 46 are rotated.
Rotation is transmitted to beam 12 via 4.

Then, the beam 12 is moved to the beam axis holding device 1.
When detaching the holding shaft 16 from the beam 12, when the holding shaft 16 is separated from the beam 12, the cylindrical body 66 is protruded outward by the spring 80 to release the radial force, the inner diameter of the cylindrical body 66 is widened, and the clearance with respect to the beam axis 14 is increased. And the beam axis 14 is easily pulled out.

According to the beam shaft holding device 10 of this embodiment, the beam shaft 14 is accurately and concentrically held with a simple structure without rattling, the vibration of the beam shaft 14 during rotation is suppressed, and the warp winding is performed. The section shape can be a perfect circle. When the beam 12 is removed or set, the inner surface of the cylindrical body 66 is loosely fitted to the beam axis 14, so that the beam axis 14 can be smoothly inserted. Then, by a simple operation of moving the holding shaft 16 by the cylinder 84, the inner surface of the cylindrical body 66 can be narrowed concentrically with the beam shaft 14, and the beam shaft 14 can be securely held without any gap.

The beam axis gripping device according to the embodiment of the present invention is not limited to the above embodiment, and the elastic body for urging the cylindrical body is not limited to the coil spring 80 but may be a suitable spring such as a leaf spring. Any other device may be used as long as it can obtain the momentum, and any other device can be used to move the cylindrical body back and forth as the holding shaft slides. The holding shaft and the rotating member are composed of a key 32 and a key groove 30.
May be provided on members opposite to each other, and the key 3
Other than 2, any spline or the like can be used as long as it can surely connect each other slidably in the axial direction. Further, the width and number of cuts formed on the side surface of the cylindrical body can be appropriately changed.

[0028]

According to the beam axis holding device of the present invention, the beam axis can be held with a simple structure without rattling, the displacement of the axis can be prevented, and low-cost and high-speed operation can be performed. It is.

[Brief description of the drawings]

FIG. 1 shows a beam axis holding device according to an embodiment of the present invention;
It is a longitudinal cross-sectional view which shows the state before connecting a beam axis.

FIG. 2 is a longitudinal sectional view showing a state where beam axes of the beam axis gripping device of this embodiment are connected.

FIGS. 3A and 3B are a longitudinal sectional view and a right side view of a cylindrical body of the beam axis holding device according to the embodiment; FIGS.

[Explanation of symbols]

 Reference Signs List 10 beam shaft holding device 12 beam 14 beam shaft 16 holding shaft 18 machine frame 20 bearing case 26 rotating member 28 spring 30 key groove 32 key 36 pulley 38 belt 40 motor 46 turntable 48 flange 50 pin hole 54 drive pin 64 taper hole 66 Cylindrical body 80 Spring

Claims (4)

[Claims] 1. A beam bearing device for a weaving preparation machine to which a beam for weaving is attached, comprising: a pair of holding shafts positioned in an extending direction of a beam axis; and a machine frame for rotatably holding the holding shafts. A moving device that moves each of the holding shafts in the axial direction, and a tip portion on the beam axis side of each of the holding shafts is formed with a conical tapered hole that spreads outward. A cylindrical body having a tapered side surface along the inner peripheral surface of the tapered hole is inserted. A cut of a predetermined length is formed on the side surface of the cylindrical body from the opening side of the tapered hole. The beam axis is provided so as to be inserted into the body, and the holding axis is moved toward the beam axis by the moving device, so that the beam axis is inserted into the cylindrical body and held concentrically. Characteristic beam axis holding device . 2. A rotating member slidable in the axial direction and rotatable integrally with the holding shaft is provided on an outer peripheral side of each of the holding shafts. A rotating disk is provided integrally with the distal end portion, which abuts against a side surface of the beam. The distal end of the beam shaft can be inserted into the center of the rotating disk, and the beam side end of the holding shaft is inserted. A through hole is formed, an end of the holding shaft is fitted in the through hole, and a plurality of cuts of a predetermined length are formed on the side surface of the cylindrical body from the opening side of the tapered hole. An elastic body such as a spring for urging the cylindrical body outward is inserted into the bottom of the tapered hole, and a predetermined position on a side surface of the cylindrical body is engaged with at least one of the rotating disk and the holding shaft. Locking portion that is locked and locked in a state where the cylindrical body slightly protrudes outside the rotating disk The beam shaft holding device according to claim 1, wherein a beam shaft is provided. 3. A side surface of the cylindrical body, an inner wall surface of which is cylindrical along the beam axis, an outer wall surface of which is a truncated cone along the inner wall of the tapered hole, and the plurality of cuts on the side surface are formed of the holding shaft. 3. The beam shaft holding device according to claim 1, wherein the beam shaft holding device is formed in parallel with the axial direction of the cylindrical member, and is formed at substantially equal intervals around the entire circumference of the cylindrical body. 4. The rotating hole of the rotary disk is a circular hole concentric with an opening of the tapered hole of the holding shaft, and has a large diameter portion and a small diameter portion. 3. The beam shaft holding device according to claim 1, wherein the rotary shaft contacts and locks a locking portion that is a step between a large-diameter portion and a small-diameter portion of the through hole of the rotating disk. 4.