JPS6183304A - Method of silk winding in direct reeler - Google Patents

Abstract

PURPOSE:To stabilizer drying and winding of silk, by setting a specific timer when winding speed of a reeled silk is changed to high or low speed depending upon the amount of silk round a silk winding frame for drying. CONSTITUTION:In a drying winder wherein the raw silk 2 after reeling is spirally wound round the silk winding frame 9 of the dryer 1, drying air is blown upon the frame to dry the raw silk, and the raw silk is wound round the winder 20, the silk winding frame 9 is equipped with the silk detector 12, the winding speed of the winder 20 is changed to high or low speed depending upon the detected silk signal of the detector and the raw silk is wound. In the operation, the detected silk signal is necessarily in pulse series, when the pulse interval is time t, the winder 20 is driven at high speed only in an operation time of a timer whose operation time is set to t<T<2t, which starts by impressing a trigger pulse and the winder is driven at low speed after operation of the timer is over.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention detects the amount of raw silk wound on the dryer for drying when drying and winding raw silk with a dryer in a direct reeling machine. The present invention relates to a yarn winding device in a direct winding machine that controls the rotation of a winder.

[Conventional technology]

In a straight reeling machine, the yarn reeled in the reeling section is pulled out from the reeling section, immediately dried, and then wound into a winder without being wound into a small frame. The yarn is wound spirally at a fine pitch around a dryer shaped like a mold frame, dried on the frame, and then pulled out. This withdrawal speed is varied by knowing the amount of raw silk wound around the dryer. That is, a sensor is installed at the drying end position of the cocoon thread wound on the dryer, and therefore at the position where the cocoon thread is pulled out from the dryer, and the presence or absence of cocoon thread at that position is detected.If the sensor detects that there is no thread, the sensor The amount of raw silk wound in the dryer is increased, and when yarn is detected, the winder is actively driven by a signal from the sensor to increase the amount of raw silk wound in the dryer. are doing.

The above sensor had a built-in level comparison circuit inside the attached amplifier, and was output externally as an on/off signal corresponding to the presence or absence of thread. In addition, in order to increase the resolution of the detection beam,
Since the light collecting ability was high and the set point of the level comparison circuit was semi-fixed, the operating point fluctuated and was unstable due to changes in the movement rotation speed of the focal point during operation.

[Problem that the invention seeks to solve]

The sensor that detects the amount of yarn wound around the dryer is installed close to the wound yarn on the outer surface of the dryer, but due to the structure of the dryer, the distance between the sensor and the yarn surface is constant during rotation. I can't get it. For this reason, the output is not pulsed, and the pulse width also changes depending on the rotation speed, as shown in Figure 4 A and B, and the pulse width also changes depending on the environment, such as changes in brightness near the sensor. The width changes, making it unsuitable for the purpose of detecting the average level of the amount of thread, and even if the cocoon thread was being wound at a constant speed, the sensor had to be constantly adjusted.

[Means for solving problems]

In order to dry the raw silk that has been plucked from the warp, a sensor is installed opposite to the circular surface of a static basket type dryer that winds the raw silk a predetermined number of times in a spiral shape and pulls out the cocoon thread from one end.
When the sensor detects thread presence and outputs a pulse train, and the time interval between the pulses is t, the operating time T of the timer that starts when a trigger pulse is applied is t (T (2
t, the timer is activated, and only when the timer is activated, the first drive of the winder is made high speed, and when the timer is not activated, the winder rotation is shifted to a low speed to reduce the amount of yarn to be wound up. .

[For production]

When SENTU detects the yarn on the dryer of the direct reeling machine and outputs a pulse train with the interparnu time being L, it activates a timer that starts when a trigger pulse is applied, and the operating time is T. When t<T<2t is satisfied, a thread presence signal is output, and the plow winder is driven at high speed 1 in response to the signal, and after the timer operation is finished, the winder is driven at high speed 1. The winder stops and the winder rotates at a low speed.

[Example] An example of the implementation of the apparatus for carrying out the method of the present invention will be described below with reference to the drawings.

1 is a dryer, and in order to dry the raw silk 2 reeled in a reeling section (not shown), a plurality of units are arranged in rows in the longitudinal direction of the machine 3, one unit for each reeling section, according to the number of reeling sections. has been done.

The dryer 1 is constructed as follows.

4 is a dryer support member provided at the top of the machine base 3;
The vertical shaft 5 is supported in a hanging manner. An upper disk 7 integrated with a bevel gear 6 is supported at the upper part of the vertical shaft 5, and a lower disk 8 is supported at the lower part thereof so as to be rotatable with respect to the vertical shaft 5.
A plurality of thread guide rods 9 (six in this embodiment) whose ends are supported by both disks 7 and 8 and are oriented toward the upper and lower blades are connected to the vertical shaft 5 between the vertical shafts 8 and 8.
Provided around. The upper end of the thread guide rod 9 is connected to the upper disk 7.
The lower ends of the thread guide rods 9 are supported at equal intervals on a circumference equidistant from the center of the lower disk 8. The force of the support radius of the guide rod 9 is smaller than the support radius of the thread guide rod 9 on the upper disk 7. Also, the thread guide rod 9 is connected to the disk 7.
, 80 rotations, and is supported by disks 7 and 8 so as to revolve around the vertical axis 5. As a result, the thread guide rod 9
The raw silk 2 wound around is sequentially moved downward along the thread guide rod 9 by the rotation of both discs 7 and 8.

The dryer 1 has a rotating motor 10 installed on the machine base 3.
The drive system 11 is rotated by the bevel gear 6.

A sensor 12 is provided on the side of the dryer 1 to detect the presence or absence of yarn wound around the dryer 1.

The sensor 12 is similar to a fiber sensor, and is capable of projecting light onto a predetermined surface, receiving the reflected light, and detecting it as an analog quantity proportional to the amount of reflection.
When there is no raw silk 2 in the position facing the sensor 12, which is placed close to the raw silk 2 wound around the sensor 12, the light is no longer reflected from the raw silk 2, so the signal emitted by sensing this will be It also controls the driving of the wine ring 20, which will be described later.

The output of the sensor 12 is amplified by a double amplifier 40 as shown in FIG. 2, and the level is compared by a comparator 41, so that the set voltage can be easily varied.

The output of the comparator 41 is input to a timer 42, which continuously issues a thread presence signal for a predetermined period of time.

The winder 20 is constructed as follows and includes a main drive member and an auxiliary drive member.

21 is a motor for driving the winder, 22 is an electromagnetic clutch/brake, and the output of the motor 21 is transmitted to an electromagnetic clutch φ brake 220 and a human power shaft 24 via a belt 23. Reference numeral 25 denotes an output shaft pulley, and a belt 28 is passed between the winding drum 26 and a drum pulley 27 integrated with the winding drum 26 to constitute a main driving member. The winding drum 26 and drum pulley 27 are rotatably supported by a shaft 29. 30 is an auxiliary motor, and a pulley 31 on the motor shaft is pressed against the belt 28 to constitute an auxiliary drive member. An auxiliary drive member may not be provided in some cases. 32
The bobbin contacts the winding drum 26, rotates in response to the rotation of the winding drum 26, and winds the thread. The bobbin 32 is supported by a cradle arm 34 which is swingably supported by a shaft 33.

It goes without saying that the same number of winders 20 as the dryers 1 are arranged in parallel, but in the above embodiment, the winders 20 are arranged in two stages, upper and lower.

One motor may be arranged for each row of winders 20 provided in the upper and lower stages.

The raw silk 2 is reeled in a reeling section (not shown).

It is washed and rolled into the dryer 1. That is, in the dryer 1, the rotation of the moku 10 is transmitted to the bevel gear 6 [Mt)J force through the drive system 11, so that the upper disk 7 integrated with the bevel gear 6 rotates, and the thread guide rod 9. The lower disk 8 will also rotate together. At this time, the thread guide rods 9 revolve around the vertical shaft 5, and wind the raw silk 2 around the plurality of thread guide rods 9 each having a cylindrical box shape. The raw silk 2 wound a predetermined number of times around the dryer 1 is pulled out downward and wound around the bobbin 32 of the winder 20.

The bobbin 32 contacts the winding drum 26Vc,
The raw silk 2 is wound up by the rotation of the winding drum 26, and the rotation of the motor 21 is transmitted to the winding drum 26 via an electromagnetic clutch/brake 22. Under normal conditions, the electromagnetic clutch/brake 22 operates with the clutch engaged, and the winding drum 26
is rotating.

In the above, the dryer 1 is always rotated at a constant speed by the motor 10, but the winding drum 26 of the winder 20 is adjusted to rotate at a yarn winding speed that is slightly faster than the yarn feeding speed of the dryer 1. There is.

Therefore, as the yarn is unwinded onto the bobbin 32, the number of times the yarn is wound around the dryer 1 decreases.

A sensor 12 is provided on the side of the dryer 1, and the sensor 12i1? :When there is raw silk 2 in the facing position, the light emitted by the sensor 12 itself is reflected back by the cocoon silk 2vc, so the sensor 12 that receives the light reflects it at an interval of time proportional to the number of rotations, as shown in Fig. 3 AK. The output is a pulse train with . The pulse train with one side is generated by the timer circuit 42.
However, since the timer circuit 42 starts when a pulse is applied, it starts operating when the first pulse of the pulse train is applied, and the timer 42 outputs for the time T.

The time T is set to t (T ('2t).
The electromagnetic clutch/brake 22 is operated to drive the winding drum. The above pulse is emitted when the sensor detects the presence of the thread.
If the second pulse is applied following the pulse of
The pulse is again extended by a time T from the point in time when the pulse was applied.

In this way, the timer 42 outputs an output and drives the electromagnetic clutch/brake 22 until the pulse is no longer applied.

The output has a trigger pulse period of t>T,! : Continuing with Naru Katsu. In reality, the condition t)T corresponds to the absence of reflected light from the yarn surface.

When the thread facing the sensor 12 disappears, light reflected from the thread no longer enters the sensor 12, and the sensor 12, which senses this, stops applying pulses. That is, when the period of the trigger pulse becomes t>T. Theoretically, T4 after the final pulse is input as shown in Figure 3B.
Although the output is extended by a considerable amount, selecting T appropriately does not have a particularly large effect.

As a result, the clutch of the electromagnetic clutch/brake 22, which is the main driving member of the winder 20, is disengaged, the output of the motor 21 is no longer transmitted to the drum 26, and the drum 26 rotates by inertia.

Electromagnetic clutch/brake 2 based on the signal from the sensor 12
At the same time as 2 is turned off, the same signal turns on the auxiliary motor 30 of the auxiliary and drive section. The pulley 31 of the auxiliary motor 30 is a belt 2 that is stretched between the output shaft pulley 25 of the electromagnetic clutch/brake 22 and the drum pulley 27.
8, 300 rotations of the auxiliary motor are transmitted to the belt 28, and the winding drum 26 continues to rotate without stopping, although at a low speed. but,
The amount of raw silk wound up from the bobbin 32 by the rotation of the winding drum 26 at this time is that the amount of raw silk 2 that is received from the reeling machine by the dryer 1 is smaller than the amount of raw silk 2 that is received from the reeling machine. The amount of yarn wound on the dryer 1 gradually increases until it reaches the position where it faces the sensor 12 again, and when the sensor 12 detects the presence of the yarn, it issues a signal. When the electromagnetic clutch/brake 22 is engaged, the rotation of the motor 21 is transmitted to the winding drum 26, and the winding drum 26 is energized to increase its rotational speed.

I) % magnetic latch brake 22 according to the above thread presence signal
The auxiliary motor 30 is energized at the same time as the clutch is engaged.
fT will sag and the belt 28 will cause the belt to tangle.

The winder 20 may be completely rotated by inertia when the electromagnetic clutch/brake is disengaged without using the auxiliary motor 30 at all.

The yarn is continuously reeled by repeatedly turning the clutch on and off.

〔effect〕

The method of the present invention uses a timer that starts when a trigger pulse is applied based on the pulse emitted by the sensor when the sensor detects the presence of yarn, so the number of rotations of the dryer and the distance between the yarn and the sensor near the sensor are controlled. Even if brightness changes and variations occur, the electromagnetic clutch brake that drives the winder can be operated for the time set on the timer, eliminating the need to constantly adjust the sensor.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of an apparatus for carrying out the method of the present invention;
The figure is a circuit diagram of the sensor, FIG. 3 is a diagram showing the relationship between trigger pulses and timer output, and FIG. 4 is a diagram showing changes in pulses due to changes in rotation. 1... Dryer 2... Raw silk 12... Sensor 20... Winder 22... Electromagnetic clutch/brake 26... Winding drum. Patent applicant Kanebo Silk Elegance Co., Ltd. Agent Patent attorney Masaru Ohno 6 Same as above Kaneko Ohno Same as above Yanosuke Ohno

Claims (1)

[Claims] A sensor is installed around the dryer that detects the presence of thread by receiving reflections from the thread surface of the raw silk wound spirally around the dryer that dries the reeled raw silk.The sensor detects the presence of thread and outputs a pulse train. When the time between pulses is t, the operating time T of a timer that starts when a trigger pulse is applied is set to t<T<2t, and only when the timer is activated, the rotation of the winder that pulls out the raw silk from the dryer and winds it up is driven. A method of winding yarn in a direct reeling machine, in which the high-speed winder is stopped and the winder rotation is shifted to low-speed rotation after the timer has finished operating.