JP3149650B2 - Thread end processing device before package inspection - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn end processing apparatus for inspecting a package formed by an automatic winder or the like prior to package inspection, in which the package is processed prior to a package inspection step.

[0002]

2. Description of the Related Art A package formed by an automatic winder is inspected to determine whether a predetermined package is properly formed. As one of the methods, the outer periphery of the package is photographed with a television camera, and it is determined whether or not the image is within an allowable range with respect to predetermined image information input in advance. Elimination has been done. Accordingly, when packages of different types are mixed, or when the shape of the package is deformed, or when the package end face is deformed, these packages are excluded.

[0003]

On the other hand, in an automatic winder, the yarn end at the end of winding of the package is lightly wound around the outer periphery of the package. However, the yarn end wound around the outer periphery of the package in this manner may be unraveled during transportation by the conveyor, and may hang down from the outer periphery of the bobbin, or adhere to the lower end surface, and sometimes rise to the upper end surface of the package. is there.

When the yarn end of the package is in such a state, when the package is inspected by photographing the outer periphery of the package with a television camera as described above and comparing with a predetermined image, these packages are Is detected as a defective package and is excluded.

For this reason, the package carried into the package inspection device is carried into the yarn end processing device in advance,
It is contemplated by the applicant to wind the yarn end around the package. In this yarn end processing device, the yarn end is sucked and held by suction air while rotating the package in the unwinding direction of the yarn, then the package is reversed, and the yarn end is wound around the outer periphery of the package.

[0006] In such a yarn end processing apparatus, since the package is rotated in the normal or reverse direction, the package cannot be immediately reversed due to the inertia of the weight of the package at the time of the reverse rotation, causing an operation delay. In particular, when the package is wound around a synthetic resin bobbin, the contact portion with the tray into which the lower end opening of the bobbin is inserted makes a substantially linear contact,
Moreover, since the resin has lubricity, the package continues to rotate forward for a while even if the tray is reversed. This tendency increases as the weight of the package increases and as the package rotates forward at high speed, and the operation delay time increases.

Further, when the tray on which the package is inserted is rotated, if the whole is supported by a support plate from below the tray and rotated by a motor, the center of rotation of the support plate does not always coincide with the center of the tray. The package inserted into the tray may be eccentric.In addition, when the package is rotated by rotating the support plate, eccentric rotation occurs, rotation is not stable, and It collides with the suction mouth to be approached or is too far away, and it becomes impossible to smoothly suction the yarn end.

Accordingly, it is an object of the present invention to improve the processing speed of a package and to enable smooth processing.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a rotating device for rotating a package inserted in a tray in a forward / reverse direction when processing a yarn end before inspection. In the yarn end processing apparatus before package inspection provided, the package rotating device has a support plate fitted into a concave portion on the lower surface of the tray, and has a holding means for raising the support plate and holding the package together with the tray from above and below. This constitutes a yarn end processing device before package inspection.

[0010]

According to the present invention, as described above, the package is set at a predetermined position by the rotation axes of the lower end and the upper end of the package by the holding means. When the package is rotated, the package is stable without eccentricity. Rotate while doing.
Also, when you reverse the package after rotating it forward,
Since the package is clamped at the upper and lower ends, a large frictional resistance is generated between the tray and the package, and the rotation of the package in the unwinding direction is immediately stopped and reversed.

[0011]

An embodiment of the present invention will be described with reference to the drawings. The package 2 conveyed from the automatic winder includes a tray 3
And is conveyed by two left and right chain conveyors 1 and 1. The package conveyed to the automatic winder is passed through an inspection device for inspecting whether or not the package is formed properly in advance, and an incorrect package is excluded. In the inspection device, the package is rotated and the television camera takes an image of the package from outside, and detects whether or not the predetermined shape and the state of the yarn on the package surface are as specified.

In such an inspection apparatus, the end of the thread of the package 2 is lightly wound around the outer peripheral surface of the package 2, but the end of the thread may hang down. This package is detected as an improper package by the inspection device and is eliminated.However, if the yarn end is properly adjusted, the package becomes a proper package. Elimination is not preferred.

For this reason, in the present invention, the yarn end processing device 5 as shown in FIGS. 1 and 2 is provided on the conveyor for transporting the package, upstream of the inspection device (not shown). This yarn end processing device supports a tray 3 in which a package 2 placed and conveyed on a conveyor 3 is inserted from below, and a package rotation device 6 for rotating the package 3 forward and backward, and blowing high-pressure air to an end face of the package 2. The package includes a nozzle 7 to be attached, a suction mouth 8 which is arranged near the outer periphery of the package 2 and is supplied with suction air, and an upper end engaging member 9 which engages with an upper end of the bobbin 35 of the package.
The nozzle 7 is provided for an upper end surface and for a lower end surface,
The injection holes at each end are directed to the upper and lower surfaces of the package.

The package rotating device 6 includes a support plate 11 fitted into the concave portion 10 on the lower surface of the tray 3, a gear 13 provided on a shaft portion 12 of the support plate 11, a drive gear 14 meshing with the gear 13, and a drive gear. When the support plate 11 is rotated by driving the motor 15 to rotate the support plate 11 and the support plate 11 is fitted into the concave portion 10 on the lower surface of the tray 3 to support the tray 3, The package 2 inserted into the tray 3 is rotated forward and backward by the forward rotation and the reverse rotation of the motor 15.

The shaft portion 12 of the support plate 11 having the gear 13 is rotatably supported on a shaft 16 by a bearing, and a connecting portion 17 at the lower end of the shaft 16 is connected to a frame 18.
Piston rod 21 of cylinder 20 fixed to the lower surface of
And a pin 22. This connecting portion 17 has L
The letter-shaped plate 23 is fixed, and the motor 15 is fixed to the plate 23. Thereby, the cylinder 20
When air is supplied to the piston rod 21 to move it up and down,
When the support plate 11 moves up and down together with the motor 15 and the support plate 11 rises to support the tray 3, the package 2 is rotated forward and backward by rotating the motor 15 forward and backward.

When the support plate 11 raises the package 2, the opening 24 of the suction mouth 8 is arranged at a position close to the outer periphery of the package 2 along the vertical direction, but packages having different outer diameters are conveyed. In order to respond to this, the package outer diameter sensor 40 for detecting the distance from the outer peripheral surface of the package 2 is connected to the opening 2 of the suction mouse 8.
4, the position of the opening 24 may be moved in the radial direction of the package according to the detection value of the sensor 40, and may be adapted to the outer diameter of the package. At this time, the plate 27 supporting the suction mouth 8 is fixed to an arm that swings around the rod 25, and is moved by an actuator.

The pipe 30 for supplying suction air to the suction mouth 8 is provided with a cutter 31 between the two plates 27, 27.
Can be operated by the air cylinder 32. Thus, when the yarn end is sucked into the suction mouth 8 and gradually drawn into the pipe 30, the cutter 31 is operated at the end of the drawing to cut the yarn end into a predetermined length. The cut yarn end after the cutting is sucked and discharged by the pipe 30.

A rod 25 stands upright from the frame 18, and an arm 33 is supported at the tip of the rod 25.
A shaft 34 is inserted downward into the end of the arm 33, and the bobbin 3 of the package 2 is
An umbrella-shaped upper end pressing member 36 formed of urethane rubber or the like that partially fits into the upper end opening of No. 5 is rotatably supported by bearings. An upper end of the shaft 34 is provided with a flange 37 for retaining the spring, and a spring 38 is contracted between the lower surface of the arm 33 and the upper surface of the upper end pressing member 36.

Thus, when the package 2 is lifted by the support plate 11 from below, the upper end pressing member 3
6 is partially fitted into the upper end opening of the bobbin 35 of the package 2, the spring 38 is contracted, and the upper end pressing member 36 and the support plate 11
Is pinched.

In the apparatus having the above-described configuration, the tray 3 conveyed by the chain conveyor 1 is stopped at the position of the yarn end processing device 5 before being carried into the package inspection device. 1
1 rises and fits into the recess 10 at the bottom of the tray 3 and is further raised to separate the tray bottom from the conveyor surface.

When the support plate 11 is further raised, the upper end opening of the bobbin 35 of the package 2 is
, The spring 38 is contracted, and the package 2 and the tray 3 are clamped between the upper end pressing member 36 and the support plate 11.

Next, high-pressure air is supplied to the nozzle 7, and the motor 15 is rotated forward at substantially the same time, so that the yarn around which the package 2 is wound is rotated in the unwinding direction. Thereby, the yarn end placed on the end face of the package 2 is blown off by the high-pressure air. Almost simultaneously with the rotation of the package, the suction mouse 8 at the standby position away from the package is
Approach the outer peripheral position of the package. At this time, the suction mouse 8 approaches while detecting the outer peripheral position of the package with the sensor 40. The yarn end blown off as described above is sucked by the suction air acting on the opening 24 of the suction mouth located on the side opposite to the nozzle 7 with the package 2 as the center, and the yarn ends in the unwinding direction of the package 2. By the rotation, the yarn end is sucked into the pipe 30 and extends.

At an appropriate timing, the air cylinder 32 is operated to operate the cutter 31 to cut the yarn end extending into the pipe to a predetermined length, stop the supply of high-pressure air from the nozzle 7, and at the same time To reverse.
At this time, the contact portion between the lower end opening of the bobbin of the package 2 and the tip of the peg 4 of the tray is pressed by the force of the spring 38, so that a large frictional force is generated. Reverse rotation starts immediately without continuing rotation due to inertia. When the package 2 is reversed, the yarn end sucked and held by the suction mouth is lightly wound around the package.

Thereafter, the motor 15 is stopped, the suction mouth 8 is separated from the package 2, the cylinder 20 is actuated in the reverse direction, the support plate 11 is lowered, the tray 3 is placed on the chain conveyor 1, and the yarn end is set. Is carried out to an inspection device (not shown), and a subsequent package is carried in.

In the above embodiment, the upper end pressing member may be movable up and down.

[0026]

The present invention is configured as described above.
When the package is rotated forward and then reverse, the package and tray are clamped by the clamping means.
The package can be reversed immediately without slippage between the bobbin of the package and the peg of the tray into which the package is inserted, and the waiting time for the start of the reverse rotation is not required, so that the processing can be completed in a short time.

Further, in the pre-processing, the package is corrected so that its center axis coincides with the rotation axis, and the package is not eccentrically rotated. Erroneous inspection can be prevented in the inspection.

[Brief description of the drawings]

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

FIG. 2 is a side view showing a partial cross section of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chain conveyor 2 Package 3 Tray 4 Peg 5 Thread end processing device 6 Package rotating device 7 Nozzle 8 Suction mouth 9 Upper end engaging member 10 Depression 11 Support plate 13 Gear 14 Drive gear 15 Motor 17 Connecting part 18 Frame 20 Cylinder 21 Piston Rod 23 Plate 24 Opening 25 Rod 27 Plate 30 Pipe 31 Cutter 32 Air cylinder 33 Arm 34 Shaft 35 Bobbin 36 Upper end pressing member 37 Flange 38 Spring 40 Package outer diameter sensor

Continuation of the front page (56) References JP-A-63-295376 (JP, A) JP-A-63-309634 (JP, A) JP-A-51-157650 (JP, U) JP-A-49-112951 (JP, A) , U) Real opening 63-98384 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D01H 13/26 D01H 9/02 B65H 67/08 B65H 49/20

Claims (1)

(57) [Claims] 1. A yarn end processing apparatus before package inspection, comprising: a rotation device for rotating a package inserted in a tray in a forward / reverse direction before processing the yarn end before inspection. An apparatus for processing a yarn end before a package inspection, comprising: a support plate fitted in a concave portion on a lower surface of a tray; and a holding means for holding the package together with the tray from above and below by raising the support plate.