JPH07133015A - Bobbin supplying device - Google Patents

Abstract

PURPOSE:To prevent situation that a parts feeder becomes incapable of supplying bobbins caused by slide-down of a big pipe of bobbins at one time. CONSTITUTION:A detecting means 27 for bobbins exsist in the specific height position on a conveyer is provided on a conveyer 4 for feeding a big pile of bobbins simultaneously supplied in large quantities to a feeder bowl 6 by inclining a waggon 2. When the detecting means 27 detects the bobbins in the position higher than the prefixed reference position in the specific position on the conveyer 4, it is considered that there is a pipe part of the bobbins on the conveyer, and the supplying capacity of the conveyer is controlled to the low level by shortening the operating time of the conveyer 4 or decreasing the driving speed, and the bobbins are split little by little, so as to be supplied into the feeder bowl 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn feeding device for a yarn feeding tray which circulates through a machine stand of an automatic winder.

[0002]

2. Description of the Related Art Conventionally, in the case of supplying a spinning yarn to each weight of an automatic winder, the yarns are piled up in a wagon and conveyed to a yarn feeding device, and the wagon is inverted and tilted by a unloading device. , Unloading the yarn in the wagon onto the conveyor in stages,
The pile of pipe threads unloaded by the conveyor was fed while being fed into the feeder ball of the vibrating parts feeder. Then, the parts feeder and the separating conveyor following the parts feeder separate the yarns in the feeder ball one by one, and feed the yarns to the tail end discrimination section to perform the tail end discrimination, and then to request the yarn from the supply station. In accordance with the above, the yarn from the above-mentioned top end determining portion was dropped into the alignment chute, and was inserted into the peg of the empty tray stopped below the alignment chute and supplied.

In such a yarn feeder, in order not to saturate the separating and feeding ability of the vibrating part feeder, it is necessary to prevent the amount of yarn in the feeder ball from becoming too large. A level sensor is provided in the feeder ball to control the drive of the conveyor to intermittently adjust the amount of the yarn in the feeder ball.

However, even when the above conveyor is driven intermittently, if the piles of the tubing unloaded on the conveyor rush into the feeder ball without being broken, the parts feeder cannot be supplied. There was a risk that

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a yarn supplying device capable of preventing a situation in which a parts feeder cannot be supplied. It is a thing.

[0006]

Means for Solving the Problems At the same time, a conveyer for feeding a large amount of supplied yarn to a feeder ball is provided with a detector for the yarn present at a predetermined height position on the conveyor.

[0007]

When the detecting means detects the yarn at a predetermined position on the conveyor at a position higher than a predetermined reference, it is considered that there is a pile portion of the yarn on the conveyor, and the conveyor is driven. The supply capacity of the conveyor is controlled to a low level by shortening the time or lowering the driving speed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the embodiment will be described with reference to the drawings.

Referring to FIG. 1, a yarn feeder 1 of the present invention.
Is a unloading device 3 for inverting and tilting a wagon 2 for transporting bulk piled yarns and tilting it, and feeding into the feeder ball 6 while breaking down the pile of piled pipe yarns 2
Conveyors 4, 5 vibrating parts feeder 7 divided into stages, separating conveyor 8 for separating and supplying the yarns sequentially sent out from the parts feeder 7, one by one, and the yarns supplied from the separating conveyer 8. A top end determining portion 9 for determining the top end, and a thread is dropped from the top end determining portion 9 to an empty tray 13 stopped at a supply station 11 provided in a part of the tray transport path 12 for insertion. It is mainly composed of an alignment chute 10. Reference numeral 14 denotes a chute guide provided at the lower end of the alignment chute 10 so as to be openable and closable.

The unloading device 3 is provided with a movable frame 31 for accommodating and holding the wagon 2 which has entered from the right side in FIG. The movable frame 31 is rotatably supported on the shaft 5 from both sides by a pair of parallel endless chains 32 (the front side in FIG. 1 is omitted) that rotate synchronously at the back thereof, and the endless chains 32 are unloaded. It is stretched between a pair of sprockets 33 and 34 arranged above and below the device 3, and is driven by a power not shown. Furthermore,
A guide roller 37 is provided on the back of the movable frame 31 so as to engage with a pair of guide grooves 36 provided on both sides thereof. Further, a part of the endless chain 32 is provided with a dock 38 that abuts against limit switches 21, 22, and 23 provided at a plurality of stages (3 stages in the illustrated example) at predetermined intervals along the track of the endless chain 32. ing.

The conveyor 4 is provided toward the parts feeder 7 from the unloading device 3, and a gutter-shaped side wall 41 is provided around the conveyor 4. Further, at the terminal end portion 42 of the conveyer 4, the conveyer 5 extending from the above portion to substantially the upper center of the feeder ball 6 is continuous. The conveyor 5 is intermittently driven by a common drive source at the same time at a constant speed ratio, and the speed of the conveyor 5 is set to be sufficiently higher than the speed of the conveyor 4. There are two types of driving time in the intermittent driving of the conveyor 4 and the conveyor 5, one of which is long and the other of which is short, and the driving time of the two types of long and short is switched by a signal from a sensor 27 described later.

Sensors 24 and 25 for detecting the presence / absence of a yarn in the conveyor 4 are provided substantially at the center of the conveyor 4 in the conveying direction and on the conveying surface of the conveyor 5. Further, above the terminal end portion 51 of the conveyor 5, a sensor 27 that detects the presence or absence of a yarn at a predetermined continuous position above the conveying surface of the conveyor 4 and the end portion 42 of the conveyor 4 or a continuous portion of the conveyor 4 and the conveyor 5. Is provided. Incidentally, reference numeral 26 is a level sensor for detecting the amount of the tube yarn stored in the feeder ball 6.

Next, the operation of the yarn feeding device 1 will be described based on an embodiment.

In FIG. 1, the wagon 2 in which the yarns are piled up in bulk is stopped by the movable frame 31 located at the lowermost end like 31 'and held by the movable frame 31 at that position. . Then, by driving the chain 32, the wagon 2 is lifted together with the movable frame 31, and
When the guide roller 37 of the movable frame 31 is guided by the guide groove 36, the guide roller 37 is inverted and tilted, so that the yarn in the wagon 2 is unloaded onto the conveyor 4. At this time, the wagon 2 is not tilted at a time, but the dock 38 provided on the chain 32 abuts on the three-stage limit switches 21, 22, 23, respectively, and each time the switch is kicked, the chain 32 is moved. Stop the drive of
After holding the angular position, the sensor 24 detects that there is no yarn on the conveyor 4 of the section, and drives the chain 32 according to the unloading request signal output from the sensor 24. By gradually inclining the wagon 2, the yarn in the wagon 2 is gradually unloaded onto the conveyor 4.

Next, when the level sensor 26 detects that the remaining amount of the yarn in the feeder ball 6 is low, the signal from the level sensor 26 causes the conveyors 4 and 5 to intermittently drive for a predetermined time. The
The unloaded tube yarn is fed into the feeder ball 6.
At this time, by driving the conveyor 5 at a high speed with respect to the conveyor 4, the tubular yarn at the front end portion of the pile of the tubular yarn unloaded on the conveyor 4 is gradually cut and dropped into the feeder ball 6. .

When the level sensor 26 detects that the amount of the yarn thread stored in the feeder ball 6 has reached a predetermined level, the signal from the level sensor 26 intermittently drives the conveyor 4 and the conveyor 5. Stop
The feeding of the tubing into the feeder ball 6 is stopped. At this time, if the sensor 25 detects that there is no yarn on the conveyor 5, then the sensor 25 detects the yarn on the conveyor 5 without immediately stopping the conveyors 4 and 5. Stop. This is to enhance the responsiveness of the supply of the yarn into the feeder ball 6.

The operation of the parts feeder 7 is controlled by means (not shown) so that the yarn is always positioned at the starting end of the separating conveyor 8. Then, when the empty tray 13 is stopped at the supply station 11 of the transport path 12, the top end determination section 9 finishes the top end determination, and the yarns located in that section are aligned in accordance with the chute request from that section. It is dropped into the chute 10, guided by the chute guide 14, and inserted and supplied on the empty tray 13.

At the same time, the separating conveyer 8 is operated to feed the yarn at the starting end of the conveyer 8 to the top edge determining portion 9, and after the top edge determining portion 9 determines the top edge, the standby state is set. Prepare for supply.

When most of the yarn on the conveyor 4 is supplied to the feeder ball 6 side and the sensor 24 detects that there is no yarn on the feeder ball 6, the chain 32 of the unloading device 3 is detected.
However, the dock 38 provided on the chain 32 is rotated until the next limit switch 22 is kicked, the movable frame 31 is further tilted by a certain amount, and the yarn in the wagon 2 is unloaded onto the conveyor 4.

At this time, the amount of the unwound tubing does not necessarily match the inclination angle of the movable frame 31, and there are cases where it is small and unloaded. If the former is less loaded, the wagon 2 may be further tilted in accordance with the detection signal of the sensor 24 to load the yarn, but if the latter is loaded too much, , Piled up on the conveyor 4.

Then, the yarns of the conveyors 4 and 5 are gradually fed into the feeder ball 6, and the piled portion of the yarns is fed to the end portion 42 of the conveyor 4 as shown by the chain double-dashed line in FIG. When the yarn reaches the sensor and the sensor 27 detects the yarn, the driving time in one intermittent drive of the conveyor 4 and the conveyor 5 is switched to the short-time operation side.

Accordingly, the piled portion of the yarn reaching the end portion 42 of the conveyor 4 is gradually cut by the conveyor 5 and fed into the feeder ball 6 while being fed at a low speed by the conveyor 4. The situation in which the pile yarns of the piled portion drool into the feeder ball 6 in large quantities at once does not occur. When the yarns in the piled portion are broken and the sensor 27 no longer detects the yarns, the intermittent drive of the conveyors 4 and 5 is switched to the long-time operation side again, and the normal feeding state is set.

In the above embodiment, the sensor 27
1 of the conveyor 4 and the conveyor 5 based on the detection signal of
An example in which the driving time in the intermittent driving of one time is switched to the short-time driving is shown, but the conveyor 4 and the conveyor 5 are controlled by means such as controlling the number of rotations of the motor serving as the drive source of the conveyor 4 and the conveyor 5 with an inverter. It is also possible to switch the driving of No. 1 to low speed operation so that the piled portion of the tube yarn is gradually cut.

Further, even if the conveyor 4 and the conveyor 5 are independently driven to further reduce the speed ratio of the conveyor 4 to the conveyor 5, or the conveyor 4 is stopped and the piled portion of the yarn is cut down. good.

[0025]

As described above, the tubing yarn feeder of the present invention is provided on a conveyor for feeding a large amount of tubing yarn simultaneously supplied to a feeder ball, and a tubing yarn existing at a predetermined height position on the conveyor. Even if a pile of piles of yarn exists on the conveyor, a large amount of yarn does not drop into the parts feeder at one time, preventing the situation where the parts feeder cannot be supplied. Is possible.

[Brief description of drawings]

FIG. 1 is a side view showing a yarn feeder according to an embodiment of the present invention.

[Explanation of symbols]

 1 Pipe Thread Supply Device 2 Wagon 3 Unloading Device 4, 5 Conveyor 6 Feeder Ball 7 Parts Feeder 8 Separation Conveyor 9 Amajiri Discrimination Section 10 Alignment Chute 11 Supply Station 24, 25 Sensor 26 Level Sensor 27 Sensor (Mounted Pipe Thread Detection Means )

Claims (1)

[Claims] 1. A yarn thread detecting device for detecting a yarn thread existing at a predetermined height position on the conveyor, which is provided on a conveyor for feeding a large amount of the yarn thread simultaneously supplied to a feeder ball. Supply device.