JPH0674524B2 - Flying fineness prevention device of automatic reeling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention, in an automatic yarn winding machine, prevents the rotation of a take-up small frame when a fineness of a wound yarn is out of a specified fineness. The present invention relates to an apparatus for preventing the degree of fineness of fibers, which stops and winds a yarn having a degree of fineness of fibers.

[Conventional technology]

Conventionally, a plurality of cocoon yarns unwound in a reeling tank and pulled out from a cocoon layer are aligned by a binding device and a collecting device, guided through a kennel by a plurality of drums, and the fineness is detected by a fineness sensor during that time. Then, while being traversed by intertwining, it is wound up on a small frame.

The thread to be reeled is searched by the fineness sensor to see if it meets the predetermined target fineness.When the fineness is smaller than the target fineness, the binding device is operated and the binding device operates. Where only one cocoon should normally be attached when the attachment operation is performed, multiple particles are attached at the same time, or the malfunction of the fineness detector occurs despite the prescribed fineness being maintained. There was a case where a signal of insufficient fineness was issued and a new binding operation was started, and the binding was performed more than necessary, and the fineness was made larger than the target fineness.

In such a case, as the fineness increases, the release resistance of the cocoon thread, the drum wheel resistance and other running resistance of the running path of the running yarn also increase, and the cocoon thread tension that combines them also increases.

As a conventional example, the third handwheel is provided so as to move depending on the magnitude of the reeling tension, and when the moving amount exceeds a certain limit, the rotation of the small frame is stopped, and the tension increases as the fineness increases. Therefore, the rotation of the winding frame has been stopped.

[Problems to be solved by the invention]

However, in such a conventional flying fineness preventing device, the reeling tension is remarkably dependent on many factors such as the properties of the raw material cocoons other than the fineness, the processing conditions such as dry cocoons, the temperature of the reeling bath, the reeling conditions such as the reeling speed. Since it fluctuates and it is difficult to keep these factors constant in practice, it is practically difficult to detect the fluctuation of the reeling tension and prevent the fineness of the fibers.

Therefore, in the present invention, it has little relation to the reeling tension,
Moreover, it is an object of the present invention to detect the flying fineness and prevent the occurrence of the flying fineness by the running yarn that shows the fineness of the size very accurately and the magnitude of the frictional resistance of the plane in contact therewith.

[Means for solving problems]

In an automatic yarn reeling machine, a slit gauge having a slit with a constant gap for passing the traveling yarn in the traveling path of the traveling yarn wound on the winding small frame, and a yarn in the section between the slit gauge and the winding small frame. A tension change detection device having a winding small frame rotation stopping device for detecting a change in the yarn tension in the section generated by frictional resistance when the traveling yarn passes through the gap of the slit gauge is provided on the traveling route, When it is detected by the tension change detection device that the yarn tension has reached the specified limit, the take-up frame rotation stopping device is activated to stop the rotation of the take-up frame.

[Action]

When the fineness of the running yarn passing through the slit having a gap corresponding to the target fineness changes, the frictional resistance of the running yarn when passing through the gap of the slit gauge changes in a very close relationship, and also This change value is almost irrelevant to factors such as the properties of the raw cocoons, the processing conditions such as dry cocoons, the temperature of the reeling bath, and the reeling conditions such as the reeling speed. Therefore, the tension generated by this change value is detected by the tension change detection device, and when the yarn tension reaches the specified limit according to the change in the fineness, the take-up small frame rotation stop device is activated and the take-up small Stop rotating the frame.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

In the device of the present invention, the traveling yarn Y is routed to the small frame 7 through the Kennel drum 2, the reciprocating drum 3, the fixed drum 4, the moving drum 5, and the entanglement 6 that lock the Kennel 1. Take The fineness sensor 8 and the slit gauge 9 are provided in opposition to the yarn passing path.
To provide. In the illustrated example, the fineness sensor 8 is provided between two parallel plate-like bodies by sandwiching a gauge plate (not shown) having a predetermined thickness between the two plate-like bodies having a substantially rectangular shape. The slits are formed at predetermined intervals and are supported by the support member by shafts that are orthogonal to the plate body. The reciprocating drum 3 is a swing arm.
Backed by 10. In this fineness detector, the swing arm 10 intermittently swings by a mechanism (not shown), and the reciprocating drum 3
To detect the fineness of the yarn Y by the magnitude of friction between the surface of the plate-like body and the yarn Y caused by intermittently passing the traveling yarn between the slits of the fineness sensor, When the fineness is large and the friction is large, the fineness sensor turns in the running direction of the yarn (clockwise direction in Fig. 1).
However, when the fineness becomes small, the fineness detector does not generate friction enough to rotate, and the fineness detector does not rotate and remains stationary. Reference numeral 11 denotes a reciprocating rod for operating a feeler (not shown) for detecting whether or not the fineness sensor 8 remains stationary. The fineness of the yarn Y is small and the fineness sensor 8 turns ( If it does not move in the clockwise direction in FIG. 1), the feeler that has advanced for the search comes into contact with the pin 13 of the attachment indicating rod 12 fixed to the side surface of the fineness sensor 8, and the advance is blocked, For this reason, the reciprocating rod 10 cannot move, and when this happens, the starting operation is started.

As shown in FIG. 3, the slit gauge 9 supports two plates 15, 15 each having a smooth flat surface and a substantially rectangular side surface, with a gauge plate 16 having an appropriate thickness interposed therebetween to face each other. The shaft 17 is fixedly supported by a screw 19, and a slit 18 is formed between the plates 15 and 15. The gap between the slits 18 is determined by the size of the fineness of the fiber to be prevented, and a running yarn that is slightly thicker than the desired fineness can pass, but a running yarn that is thicker than that can pass. Inability or extreme resistance is assumed. The spacing is set to be slightly larger than the spacing of the slits of the fineness sensor, and the running yarn Y
Is provided on the frame 21 so as to always pass through the slit 18 during reeling.

The movable drum 5 is provided at the tip of a supporting member composed of a supporting lever 23 supported by a frame 21 on a shaft 22, and constitutes a tension change detecting device 19, and the supporting lever 23 is provided at the opposite end of the supporting lever 23. A cam member 24 is integrally provided. Cam member 24
A cam follower 29 provided on the lower arm 27 of a stop lever 28 composed of an upper arm 26 and a lower arm 27 is in contact with the cam surface 25 of the.

The upper arm 26 is attached to the supporting arm 30 on the frame 21 by the shaft 31 and the lower arm.
A roll 32, which is supported together with the lower arm 27 and is integrated with the lower arm 27, is fitted into the long hole 33 of the upper arm 26, one end of the spring 34 wound around the shaft 31 is the roll 32, and the other end is the upper arm 26. The lower arm 27 is supported by the upper arm 26 in a bendable state by being locked to the side portion. A brake ring 35 is provided on the upper arm 26, and when the stop lever 28 swings around the shaft 31, the brake ring 35 contacts the outer peripheral edge of the small frame 7.

A balance member (40) is provided near the end of the moving drum supporting member (supporting member (23)). In the example shown in FIG. 1, the balance member 40 comprises a balance chain 41, and one end of the balance chain 41 is fixed near the end of the support lever 23. The other end of the balance chain 41 is fixed to a balance chain end fixing member 42. The balance chain end part fixing member 42 shown in FIG. 1 is provided with an adjusting reel 44 on a rotary shaft 43 which is provided in common throughout each part, and the end part of the balance chain 41 is locked to the adjusting reel 44. . The end portion of the balance chain 41 is in the form of a string so that it can be easily wound around the adjustment reel 44 of the rotary shaft 43, and the middle portion thereof is guided by a guide roller 45 having a length such that it can hang down in a U shape. A device is provided for rotating the rotary shaft 43. That is, 46 is a handle provided on the auxiliary shaft 47,
A chain 50 is hung between the rotary shaft 43 and the rotary shaft 43 via chain wheels 48 and 49, and the rotary shaft 43 can be rotated by operating a handle 46.

Next, the operation of the device of the present invention will be described.

During reeling, the traveling yarn Y is wound around the small frame 7 while the fineness of the traveling yarn Y is detected by the fineness sensor 8, and when the fineness sensor 8 detects a decrease in the fineness of the traveling yarn Y, the binding mechanism (not shown) is shown. No.) to instruct the start of the binding operation and run the yarn Y
Cocoon is newly added until the yarn reaches the specified fineness, and the running yarn Y
Is maintained at a specified fineness. However, various obstacles may occur in the yarn during reeling. That is, one of the causes is the occurrence of so-called flying fineness in which the traveling yarn Y reaches a predetermined fineness or more due to a fineness detection error of the fineness detector, a malfunction of the fineness operation, or the like.

The device of the present invention deals with the occurrence of the so-called flying fineness.

When the running yarn Y maintains the specified fineness during reeling, the gap of the slit 18 of the slit gauge 9 is slightly larger than the slit 14 of the fineness sensor 8, and thus the running yarn Y is slit.
After passing through 18, the frictional resistance is hardly generated. However, when the fineness of the running yarn Y becomes larger than the specified fineness due to a miss of fineness detection of the fineness sensor 8 or a malfunction of cocoon feeding, etc., the friction of the running yarn Y passing through the gap of the slit 18 of the slit gauge 9 is caused. The resistance increases, which increases the tension of the traveling yarn Y, and thus the balance chain 41 of the balance member 46.
Lift the moving drum 5 against the weight of.

When the fineness of the running yarn Y further increases, the tension of the yarn Y further increases, the moving drum 5 further rises, and therefore the balance chain 41 that urges the moving drum 5 including the support lever 23 in the downward direction. Is further increased, and the moving drum 5 is stationary with the tension and the weight of the balance chain 41 being balanced.

That is, the size of the fineness of the traveling yarn Y is indicated by the tension of the traveling yarn Y at the upper and lower positions of the moving drum 5.

Normally, if the gap between the slits 18 of the slit gauge 9 is set to be larger than the gap between the slits 14 of the fineness sensor 8 by one grain size (about 3 denier), the slits 18 will not affect the reeling during the reeling. However, when the fineness becomes larger than 1 grain fineness, the tension starts to increase and the moving drum 5 starts to rise, and when the fineness becomes 2 grains finer (about 6 denier) than the specified fineness, the moving drum 5 moves in the meantime. Goes up from position A to position B. At this time, the cam member 24 turns clockwise about the shaft 22 and the stop lever 28 turns counterclockwise about the shaft 31 to rotate the brake ring 35 at the position B. The brake ring 35 is brought into contact with the outer edge, and the brake ring 35 is rotated in the rotation direction of the winding small frame 7 by the rotational force of the winding small frame 7 to be positioned at the position C. The stop lever 28 moves the length corresponding to the length of the long hole 33 against the force of the spring 34, reaches the C position, and stops the winding small frame 7. As a result, the cam member 24 is further rotated in the clockwise direction via the stop lever 28, so that the moving drum 5 is raised from the B position to the C position, and the traveling yarn Y is loosened. Then, the portion of the fineness of the yarn that caused the stop of the small frame is manually removed, and the support lever 23 is swiveled counterclockwise to return to the original state and the reeling is restarted. The weight of the balance chains 41 loaded on the moving drum 5 can be adjusted in one go for each of the plurality of balance chains 41 by manually rotating the adjusting handle 46 of the one-way adjusting device.

In this example, the traveling yarn Y always travels in the gap of the slit 18 of the slit gauge 9, but the traveling yarn Y may intermittently move in and out of the gap of the slit 18.

According to this device, when the fineness of the traveling yarn Y increases more than the specified fineness depending on the size of the gap of the slit 18 of the slit gauge 9 and the setting condition of the weight of the balance chain 41, the rotation of the winding small frame 7 However, according to the result of the experiment, when the fineness of the running yarn Y becomes larger than the prescribed fineness of about 1.5 to 2.0 grains, the winding small frame 7
It is possible to stop the rotation of No. 2 and it is possible to sufficiently achieve the purpose of preventing the occurrence of the fineness of the fineness.

Although the take-up tension has been taken up as a method of detecting the starting point of an automatic spinning machine for a long time, it has not been successful in its practical use, even though the take-up tension has been closely related to the fineness of the running yarn. In addition to the fineness, it shows different values depending on the properties of the raw cocoons, the processing conditions such as drying and boiling cocoons, and the reeling conditions such as the temperature of the reeling bath and the reeling speed, and these conditions are kept constant so as not to be affected It was nothing more than a practical difficulty. After all, it finally appeared as a method of detecting the splicing point of the automatic reeling machine, and it was successful in practical use that the running yarn is passed through the slit with a certain gap and the frictional resistance generated at that time is detected. Then it was a method of making a connection by the size of this. This shows that this method has the advantage of detecting the size of fineness most accurately and being hardly affected by external conditions. Also in the detection of the fineness of the fineness, the occurrence of the abnormal fineness is detected by the frictional resistance generated when the traveling yarn Y passes through the gap of the slit 18 of the slit gauge 9, and the rotation of the winding frame 7 is stopped by this. The present apparatus is the best in practical use because it accurately detects the occurrence of flying fineness and does not require the external conditions to be fixed or unified. A cutting prevention device at the time of a yarn failure that stops the winding small frame 8 when the yarn failure occurs due to the vertical movement of the moving drum 5 provided with the balance chain 41 is possible. Since the tension generated at the time of occurrence is considerably large, no problem occurs in this device.

Another example of the balance member 40 is shown in FIG. That is, instead of the balance chain 41, a balance weight 50 of an appropriate weight is provided near the tip of the support lever 23 so that its position can be changed, and the position is fixed by a screw 51. The balance weight 50 can be freely displaced by loosening 51. This embodiment is effective because it has the same effects as the above embodiments.

〔The invention's effect〕

As described above, according to the present invention, in an automatic yarn reeling machine, a slit gauge having a constant gap for passing a traveling yarn in a traveling route of the traveling yarn wound on a winding small frame, and this slit gauge. The rotation of the winding small frame that detects the change in the yarn tension in the section generated by the frictional resistance when the running yarn passes through the slit of the slit gauge in the yarn traveling path of the section between the winding small frame and the winding small frame A tension change detecting device having a device is provided, and when the tension change detecting device detects that the yarn tension has reached a specified limit, the winding small frame rotation stopping device is operated to stop the rotation of the winding small frame. Therefore, if the fineness of the running yarn exceeds the specified limit,
Since the rotation of the winding small frame is accurately stopped, the occurrence of the fineness of the fibers can be completely prevented, and this action is due to the characteristics of the raw material cocoons, the processing conditions such as dry boiling cocoons, or the temperature of the reeling water, Since it is not affected by the reeling conditions such as the reeling speed, it is possible to exert an extremely excellent effect in practical use.

[Brief description of drawings]

1 is an overall side view of the device of the present invention, FIG. 2 is an overall front view of the same, FIG. 3 is a plan view of a slit gauge, and FIG. 4 is a schematic front view of a second embodiment. 7 ... Winding frame, 9 ... Slit gauge, 18 ... Slit, 19 ... Tension change detection device, 20 ... Winding frame rotation stop device

Claims (3)

[Claims] 1. An automatic reeling machine, comprising: a slit gauge having a slit having a constant gap for passing a traveling yarn in a traveling path of the traveling yarn wound on the winding small frame; and a slit gauge and the winding small frame. A tension change detection device having a winding small frame rotation stopping device for detecting a change in the yarn tension in the section caused by frictional resistance when the traveling thread passes through the gap of the slit gauge in the yarn traveling path in the section A device is provided, and when the tension change detection device detects that the yarn tension has reached a specified limit, the winding small frame rotation stopping device is operated to stop the rotation of the winding small frame. A device for preventing the fineness of fibers from an automatic reeling machine. 2. The skipping fineness preventing device for an automatic reeling machine according to claim 1, wherein the slit gauge is provided in the traveling route of the traveling yarn and behind the fineness sensor. 3. A tension change detecting device having a support lever having a movable spur wheel at the tip, and displacing the spur wheel position in response to an increase in the yarn tension of the traveling yarn. A device for preventing the degree of fineness of an automatic reeling machine according to claim 1.