JPS6353106B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for stripping the outermost yarn layer of a yarn package.

Prior Art In the synthetic fiber manufacturing process, especially in the melt spinning process, the yarn package wound on a bobbin is switched to a new bobbin when it is fully wound. The yarn in the outermost layer has a different or changed quality from the yarn during normal winding. Further, since atmospheric dust and the like adhere to the package during temporary storage until packaging, it is necessary to remove a predetermined length of the outermost layer of the package.

Conventionally, such yarns have been removed by manually peeling off a predetermined amount, or by winding them around a frame in a skein shape, but these conventional methods are inefficient and require manual labor. This was a very time-consuming and troublesome task.

For this reason, consideration is being given to automating such stripping work so that it can be done as easily and quickly as possible.

Object and Structure of the Invention The present invention was made as a part of automating the above-mentioned yarn stripping process, and is capable of fixing and winding the yarn end pulled out from the outermost layer of the package cage onto a winding body with a simple operation. The purpose is to That is, the present invention provides an apparatus for stripping a predetermined amount of the outermost yarn from a yarn package, in which a pin protrusion is provided at the center of a group of cylindrical pins of a pin holder in which a plurality of pins are protruded in a cylindrical shape from a disk-shaped holder. It consists of a drive shaft for rotating the yarn winding section connected in the opposite direction to the installation side.
The yarn winding section is provided with a cover, and the cover is provided with an air outlet of an aspirator in a direction substantially orthogonal to the group of cylindrical pins, and the cover facing the air outlet is made of a perforated plate or a wire mesh. This is a device for stripping the outermost layer yarn of a yarn package.

EXAMPLES The present invention will be described below with reference to the drawings. 1 and 2 are a front view and a side view showing an embodiment of the present invention, and FIG. 3 is an enlarged side view including a partial cross section of the winding section shown in FIG. 2.

In the figure, reference numeral 1 denotes a machine base, and a yarn stripping machine main body 2 is disposed above the machine base. The stripping machine main body 2 has a hollow drive shaft 5 which is rotatably supported horizontally by bearings 3 and 4, and a disc-shaped holder 7 which is vertically attached to the tip of the drive shaft 5, with the axis of the drive shaft 5 being centered. The yarn stripping pin roller 6 has a cylindrical (polygonal) shape with a plurality of pins 8 projecting approximately horizontally.

The pins 8 constituting the pin roller 6 are diagonally
The book is mounted so as to be inclined slightly inward, and the circumferential length connecting these pins 8 becomes shorter as it goes toward the tip of the pin 8.

Reference numeral 9 denotes a thread removal plate made of stripped threads, which is inserted so as to be movable in the horizontal direction along the pin 8 of the pin roller 6, and a support shaft 10 protruding from the center is inserted into the hollow hole 5' of the drive shaft 5. Support seat 1 inserted and provided at the rear end
A coiled spring 12 inserted between the thread removal plate 9 and the holder 7 normally presses the thread removal plate 9 into contact with the holder 7.

A pusher 13 consisting of a fluid pressure cylinder 14 having the same axis is provided at the rear of the support shaft 10, and when the plunger 15 protrudes, the support shaft 10
is moved forward to move the thread removal plate 9 to the front end position of the pin 8.

Reference numeral 16 denotes a cover that covers the pin roller 6. An aspirator 19 is attached to the cover 16 so that the discharge port 20 is located toward the middle part of the pin in the direction orthogonal to the pin 8 of the pin roller 6. Cover 16 on the side facing the exit 20
is made of a perforated plate 17 (or wire mesh) with a large number of small holes 18 perforated therein. It is preferable that at least a portion of the cover 16 be made of a transparent material so that the inside can be seen.

The lower part of the cover 16 is an open surface, and a waste thread box 21 for storing peeled waste threads is arranged below this.

Reference numeral 22 is a clutch brake connected to a motor 23 placed in the middle of the machine 1. The clutch brake is connected to the constantly rotating motor 23 when necessary, and rotates the drive shaft 5 at a predetermined speed via a timing belt 24 and timing pulleys 25 and 26. It is like that. The clutch brake 22 is used to avoid overheating of the motor 23 and to prevent inertia rotation by frequently repeating rotation and stopping of the pin roller 6.

On the other hand, a reflective tape 27 for detecting the number of rotations is attached to the drive shaft 5 of the pin roller 6, and a photoelectric detector 28 is arranged at a position facing this reflective tape 27. Furthermore, the photoelectric detector 28 is connected to a number of rotations counter. When a predetermined set value is reached, the counter is reset and a signal is sent to the clutch brake 22 to disconnect it from the motor 23 and operate the brake. It goes without saying that any other arbitrary means may be used for these rotational speed detection means, counters, etc.

Reference numeral 29 is a power supply and sequence box for driving and controlling the entire device, and 30 is a clutch/brake control unit for adjusting the intermittent intensity.

Function In the apparatus configured as described above, for example, as shown in FIG. 4, a plurality of trays 33 placed on a conveyor 32 are When the yarn package 35 is fed, it stops at a predetermined position. A stripping device 31 according to the present invention is disposed in front of the stop position, and in its operation, it first strips each package 35.
The thread ends Y of the outermost layer are taken out manually (an automatic thread end take-out means may also be used), the plurality of thread ends Y are stretched to the aspirator 19, and the foot switch 36 located below the aspirator 19 is activated. push. While the foot switch 36 is depressed, the solenoid valve 37 operates and compressed air is supplied to the aspirator 19, so the aspirator 19 operates and therefore sucks the yarn end. The suctioned yarn Y is ejected from the discharge port 20 together with operating pressure air.
are oriented perpendicularly to the pin intermediate position of the pin roller 6, so the yarn passes between the pins 8 and flows toward the perforated plate 17, and the air flows through the perforated plate 17.
Or it emanates from below. fixed amount of time (usually a few seconds)
Later, or after visually confirming the passage of the thread through the transparent portion of the cover 16, the switch 36 is released, the solenoid valve 37 returns to its original state, and the suction action of the aspirator 19 is interrupted. At the same time, the clutch brake 22 is operated, the brake is released, and the clutch is connected.The motor 23 and the pin roller 8 are connected through this, and the pin roller 8 (drive shaft 5) starts rotating. In this case, the aspirator 19 also serves as a convergence guide for the yarn Y unwound from each package 35. Although the motor 23 is always rotating and the pin roller 6 is rotated and stopped by the clutch brake 22 except during an emergency stop, the present invention is not limited to this. As the pin roller 6 rotates, the yarn end Y passing between the pins 8 is fixed, the yarn is wound around the pin roller 6, and the outermost layer yarn of the package 35 is peeled off. For this reason, the thread end of the package 35 is connected to the aspirator 19.
The yarn end is fixed to the pin roller 6 and automatically pulled off by simply opening and closing the switch 36 instantaneously, and the stripping operation can be started very easily and reliably in a short time.

When the pin roller 6 rotates, the number of rotations is detected by the reflective tape 27, photoelectric detector 28, etc.
When the pin roller 6 reaches a preset rotational speed and a predetermined thread is stripped off, the rotational speed counter operates and the clutch brake 22 is actuated in response to the signal, and the connection with the motor 23 is released and the brake is activated. Once, the pin roller 6 stops within a short time. The counter is also reset. At this time, the yarn stripped by the pin roller 6 will be slightly thickened, but this can be adequately controlled by verifying the stripping length and the number of rotations of the pin roller 6 in advance.

Next, the thread pull-out portion of the package 35 that has been stripped off to a predetermined length is manually cut off, and the thread ends on the package 35 side are tied together for processing.
(Other types of operation switches may be used) to perform the following operations. That is, by operating the switch 38, the clutch brake 22 is released and the clutch is connected.
In order to wind up the thread between the package 35 and the pin roller 6, the pin roller 6 rotates by a predetermined amount and then stops. Next, the solenoid valve 39 operates, the cylinder 14 operates, and the plunger 15 protrudes.
The facing support shafts 10 are moved forward, and the thread removal plate 9 is pushed forward. At this time, if the pin 8 on the diagonal line of the pin roller 6 is installed with a slight inward tilt or is installed so that it can be tilted slightly, when the yarn is wound on the pin roller 6, the outer circumference becomes smaller as it goes forward. The removed threads can be removed even more easily and reliably. The thread removing plate 9 is pushed out until the tip of the pin 8 is just hidden, and the pin roller 6
The thread skein wound up is detached from the pin roller 6 and falls into the waste thread box 21 below, where it is stored. Thereafter, the electromagnetic valve 39 returns to its original position, causing the plunger 15 to move backward, and the thread removal plate 9 also returns to its original position under the action of the spring 12.

The above description has been given of a case in which the process is partially carried out manually, but it is also possible to further automate or completely unattend the process by using automatic suction means, cutting means, etc. for the thread ends of one or more packaged cages. be.

As explained above, the present invention has the excellent advantage that the thread end can be fixed to a stripping machine that winds a predetermined length of thread, and the subsequent stripping can be carried out extremely easily, quickly, and reliably. It has great utility as equipment for automating the stripping of surface yarns.

[Brief explanation of the drawing]

1 and 2 are a front view and a side view showing an embodiment of the present invention, FIG. 3 is an enlarged side view including a partial cross section of the yarn stripping part of FIG. 2, and FIG. 4 is an explanation of the operation. It is a diagram. DESCRIPTION OF SYMBOLS 1... Machine stand, 2... Stripping machine main body, 5... Drive shaft, 6... Pin roller, 8... Pin, 9... Thread removal plate, 10... Support shaft, 13... Pusher, 16
... Cover, 17 ... Perforated plate, 19 ... Aspirator, 20 ... Discharge port, 21 ... Waste thread box,
22...Clutch brake, 23...Motor, 2
7... Reflective tape, 28... Photoelectric detector, 35...
...Patsucage.

Claims (1)

[Claims] 1 In a device for stripping a predetermined amount of the outermost layer of yarn from a yarn package, a pin roller for yarn stripping has a disk-shaped holder with a plurality of pins projecting in a cylindrical shape, and a center of a group of cylindrical pins on the holder. It consists of a drive shaft for rotating a pin roller connected in a direction opposite to the pin protrusion side at a position, and a cover is disposed on the yarn winding section, and the air exhaust of the aspirator is connected to the cover in a direction substantially orthogonal to the group of cylindrical pins. 1. A device for stripping outermost yarn of a yarn package, characterized in that an outlet is provided and a cover facing the air outlet is composed of a perforated plate or a wire mesh.