JPS6314090B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention collects cocoon silk unwound in a reeling tank using a cocoon collecting device, passes it through a kennel if necessary, and then directly uses a dry thread device without winding it up into a small frame. In a reeling machine that dries the yarn and winds it up in a winding device, the yarn can be reeled at a nearly constant yarn reeling speed, and the drying conditions can be kept as constant as possible in each part of the yarn while eliminating the yarn dropping from the dryer. In order to keep the yarn length (standard yarn length) wound around a cylindrical basket type dryer rotating at a constant speed constant, the amount of yarn pulled out from the dryer is smaller than the amount of yarn wound into the dryer. The winding speed is adjusted to reduce the amount of yarn being wound around the dryer, and when the yarn length increases and reaches the standard yarn length, the drive torque of the winder is increased and the winding speed on the winder side is increased to wind the yarn around the dryer. The winder is rotated at high speed until the yarn that has been wound reaches the end of the standard yarn length, and the yarn wound above the standard yarn length is pulled out from the dryer and the yarn wound around the dryer is gradually reduced to the standard yarn length. It is now possible to wind up the paper using a winder.

The so-called direct reeling device, in which the cocoon silk unwound in the reeling tank is bundled by a cocoon collecting device, dried in a drying device, and then wound up, has been implemented in various ways, but the drying conditions have not been adjusted. It was difficult to wind the thread evenly into a ball of thread.

Therefore, a basket-shaped dryer was considered, which is made up of two discs placed above and below a vertical shaft, with thread guide rods provided at equal intervals around the periphery, and the thread is wound around the top of the dryer, and the thread is pulled out from the bottom in the direction of the vertical shaft. Ta. This dryer arbitrarily selects the length of the yarn to be wound (standard yarn length) based on the yarn fineness, etc., and dries the yarn while it is being wound around the dryer. It is something that is wound onto a ball of thread,
The presence or absence of the standard yarn length is detected by a sensor, and if the yarn wound around the dryer is less than the standard yarn length, the winding speed of the winder, etc. is slowed down until the standard yarn length is reached, and the amount of yarn wound around the dryer is reduced. I was doing a lot.

However, according to this method, until the yarn of the standard yarn length is wound around the dryer, the tension on the yarn at the bottom of the dryer, that is, the yarn that has been sufficiently dried, is naturally reduced to the winder side.
As a result, the pressure applied to the dryer was small, and when the windings became uncoiled, the threads wound around the bottom of the dryer became unraveled and fell, resulting in poor winding by the winder.

Moreover, this may cause dry spots on the yarn.

The present invention has been made in view of this point.

An example of implementation of the present invention will be described below with reference to the drawings.

The yarn reeling device 1 of the present invention is provided with a yarn reeling section 3 and a dry yarn winding section 4 facing each other with a working path 2 in between.
The yarn reeling section 3 is arranged in a machine frame 5, from the bottom, a yarn reeling tank 6, a cocoon feeding device 7, a weaving device 8, a weaving device 9, a kennel device 10, a fineness sensing device 11, and a yarn failure stopping device 1.
2, an oiling device 13, a guide 14, etc. are provided, and the dry yarn winding section 4 is provided with a dryer 20, a heater 21, and a winder 22. In the illustrated example, the winder 22 is provided in two stages, one above the other, and a plurality of thread reeling cords provided in a row are alternately wound up by the thread winding device in the upper stage or the lower stage.

Next, each part of the reeling section 3 will be explained in detail.

A plurality of welding devices 8 are provided at equal intervals on a beam 31 supported by an arm 30 above the reeling tank 6. The weaving device 8 is a propeller-type cord taking-in blade 3.
2 and a welding rod 33 pivotally supported at an appropriate position on the machine frame 5, and a fineness sensing device 11 to be described later.
When it detects a decrease in the fineness of the reeling yarn, it collects the cocoon cord released from the basket of the cocoon feeder 7, which is circulating on the front side of the reeling tank 6, by means of the welding rod 33. This is to carry out the welding by taking it into the turning locus of the blade 32.

A kennel device 10 that constitutes a kennel 36 is provided above the cord collecting device 9 by threading wheels 34 and 35.

The upper part of the kennel device 10 includes, for example, slits arranged at intervals according to the fineness of the reeling yarn, and a fineness sensor 37 that performs a turning movement according to the target fineness, and a device that searches the turning movement of the fineness sensor 37. A fineness sensing device 11 consisting of a retrieval rod 38 (partially not shown) is provided, which starts the cocoon feeding and weaving device when the fineness decreases.

The yarn failure stopping device 12 is as follows.

Reference numeral 40 denotes a swinging rod, which has a grinding wheel 41 at its tip and a half-moon-shaped cam piece 42 at its base.
It is supported by a shaft 43. 44 is a dog-shaped arm supported by a shaft 45 and connected to a solenoid 46 by a rod 47. When the solenoid 46 is activated, the rod 47 is pulled and the dogleg arm 44 pushes the cam piece, so the swinging rod 40 rises as shown by the two-dot chain line and comes into contact with the micro switch 49. The solenoid 46 is activated when a yarn breakage detection device 28 (which may also serve as a yarn guide) provided on the yarn path leading to the winder 22 detects yarn breakage. The micro switch 49 is for operating the braking devices of the dryer 20 and winder 22, which will be described later.

The dry thread winding section 4 includes a dryer 20 and a heater 2.
1. Consists of a winder 22.

The dryer 20 is configured as follows.

A dryer support member 51 is provided at the top of the frame 52 and supports the vertical shaft 53 in a hanging manner. A disk 55 integrated with a bevel gear 54 is supported on the upper part of the hanging shaft 53, and a disk 56 is supported on the lower part thereof so as to be rotatable with respect to the vertical shaft 53.
In between, a plurality of thread guide rods 57 whose ends are supported by both disks and are oriented in the vertical direction are provided around the vertical axis. The upper ends of the thread guide rods 57 are supported at equal intervals on the circumference equidistant from the center of the upper disk 55, and the lower ends of the thread guide rods 57 are supported at equal intervals on the circumference equidistant from the center of the lower disk 56. is supported by the lower disk 56
The support radius of the thread guide rod 57 in is smaller than the support radius of the thread guide rod 57 in the upper disk 55. In addition, the thread guide rod 57 has discs 55 and 56.
It is supported by disks 55 and 56 so as to revolve around a vertical axis 53 as a result of the rotation of the disks 55 and 56. As a result, the thread Y wound around the thread guide rod 57 is transferred to the disk 5.
5 and 56, the yarn guide rod 57 sequentially moves downward.

The heater 21 is provided on the back of the dryer 20, and the dry air is supplied to the dryer 20 by a fan 23.
sent to. 24 is a cover.

60 is a motor, the rotation of which is transmitted to a main drive shaft 62 by appropriate means 61 such as a chain. 63
is a bevel gear provided on the main drive shaft 62, which meshes with the bevel gear 66 of the drive shaft 65 and transmits the rotation of the motor 60 to the bevel gear 54 of the dryer 20 via the bevel gear 67 provided at the end of the drive shaft 65. Rotate the dryer 20. 68 is an electromagnetic clutch/brake provided on the drive shaft 65.

A solenoid 70 connects a crank arm 72 to a protrusion 71. A brake shoe 73 is provided at one end of the crank arm 72 and comes into contact with the upper disk 55 of the dryer 20 to stop the rotation of the dryer 20 when the solenoid 70 is activated.

The winder is constructed as follows.

75 is a motor, 76 is an electromagnetic clutch, and the output of the motor 75 is transmitted to an input shaft 78 of the electromagnetic clutch 76 via a belt 77. The electromagnetic clutch 76 may be a powder clutch, for example.
A winder that can adjust the transmission torque appropriately is suitable, and the winder is usually rotated with a low torque transmission rate, but if the amount of yarn wrapped around the dryer does not reach the standard amount When this point is reached, the transmitted torque can be increased. 79 is an output shaft pulley, and a belt 82 is passed between the winding drum 80 and a drum pulley 81 integrated with it. The winding drum 80 and drum pulley 81 are rotatably supported by a shaft 83. A bobbin 84 contacts the winding drum 80, rotates in response to the rotation of the winding drum 80, and winds the thread. The bobbin 84 is supported by a cradle arm 86 that is pivotally supported on a shaft 85.

A sensor 90 is a fiber sensor for detecting the yarn wound around the dryer 20, and is provided close to the yarn wound around the dryer 20. The length of the yarn wound around the dryer 20 is changed as appropriate depending on the quality of the yarn, fineness, etc., but once the length of the wound yarn (standard yarn length) is determined, the length of the yarn wound around the dryer 20 is always the same as the standard during reeling. The yarn is wound around the dryer 20 and pulled out below the dryer 20. Since the input side of the yarn wound around the dryer 20 is always constant, the reference yarn length is determined by the position of the output side, and the sensor 90 is provided at that position. When the thread Y is located at a position facing the sensor 90, the torque transmission of the electromagnetic clutch 76 is increased based on the signal emitted by sensing the thread presence by reflection of light from the thread Y. When the yarn is wound at a high rotation speed and the yarn Y is no longer in the position facing the sensor 90 and light is no longer reflected from the yarn Y, the torque transmission from the clutch is lowered and the rotation of the winder 22 is decreased to reduce the amount of yarn to the dryer 20. Increase the number of wraps. That is, only when the amount of yarn wrapped around the dryer 20 reaches the standard amount, the amount of yarn being wound is reduced and the amount of yarn being pulled out is increased.

In the dry winding section 4, it goes without saying that winders 22, 22 corresponding to each reeling cord of the reeling section 3 are arranged in parallel in the same number as the number of reeling cords, but in the above embodiment, the winders 22 are They are arranged in two rows, top and bottom.

Alternatively, one motor may be disposed in each row of winders 22 provided in the upper and lower stages.

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

In the reeling tank 6 of the reeling section 3, the cocoon grains 15 are reeled. The thread Y that has been taken out is a thread gathering device 9,
The fineness is detected by the fineness sensor 37 through the kennel device 10 consisting of the fineness wheels 35 and 34, and the fineness is detected by the fineness sensor 37.
41, an oiling device 13, and a guide 14, and are introduced into the dryer 20 of the dry yarn winding section 4. If the fineness of the yarn Y decreases during this time, the fineness sensor 37 detects this and sends the cocoon to the cocoon feeding device 7 by means not shown.
The cocoons are released into the reeling tank 6 and the cocoon is released into the reeling rod 3.
3 is rotated and swung to capture the cord of the cocoon discharged from the cocoon feeding device 7 into the reeling tank 6 into the rotating locus of the cord taking-in wing 32 of the grafting device, and the cocoon discharged into the reeling tank 6 is taken in. The fineness of the yarn that is spliced and taken up is increased. In this way, the yarn Y is always reeled with a constant fineness and transferred to the dry yarn winding section 4. The yarn Y entering the dry yarn winding section 4 is wound around a dryer 20. The dryer 20 receives the rotation of the motor 60 through a chain 61 on a main drive shaft 62, and has bevel gears 63, 66, a drive shaft 65, a clutch 68, a drive shaft 65, and a bevel gear 6.
7, the power is transmitted to the bevel gear 54, and the disc 55 integrated with the bevel gear 54 rotates, and the thread guide rod 57 and the disc 56 also rotate together. At this time, the thread guide rod 57 revolves around the vertical axis 53 and winds the thread Y around the cylindrical cage-shaped thread guide rod 57. The amount of yarn wrapped varies depending on the fineness of the yarn, yarn quality, etc., but the standard yarn length required for drying is determined by each yarn.
A thread having a length corresponding to the thread length is wound around the dryer 20. A predetermined number of threads wound around the dryer 20 are pulled out downward and wound onto the bobbin 84 of the winder 22.

The bobbin 84 is in contact with the drum 80 and
0 rotation and winds up the thread Y, but the drum 80
The rotation of a motor 75 is transmitted through an electromagnetic clutch 76. Under normal conditions, the electromagnetic clutch 76 is engaged and operates to transmit torque at a low rate, and the winding drum 80 is rotating.

In the above, the dryer 20 is always driven by the motor 6.
Although the winder 22 is rotating at a constant speed due to
The winding drum 80 is adjusted to rotate at a yarn winding speed that is slightly slower than the yarn feeding speed of the dryer 20. Therefore, as the yarn is wound onto the bobbin 84, the number of times the yarn is wound in the dryer 20 increases.
A yarn sensor 90 made of a fiber sensor is provided on the side of the dryer 20. When the yarn facing the yarn sensor 90 reaches the yarn sensor 90, light reflected from the yarn enters the yarn sensor 90, and the sensor that senses this A signal is issued to increase the torque transmission rate of electromagnetic clutch 76. As a result, the rotation speed of the motor 75 is transmitted at a high rate, and the winding drum 80 is rotated at high speed. Therefore, the amount of yarn pulled out from the dryer 20 is larger than the amount of yarn wound into the dryer 20, and the winding drum 80 is rotated at a high speed. The amount of thread wound around the thread 20 gradually decreases, and gradually there is no thread at the position facing the thread sensor 90. When the thread sensor 90 detects the absence of thread, a signal is emitted and the electromagnetic clutch 76 The rotation of the motor 75, which has reached its normal rotation, is transmitted to the winding drum 80, and the winding drum 80 is decelerated to return its rotational speed to its normal rotation.

By repeatedly turning the clutch on and off, the yarn is continuously reeled.

When a yarn failure occurs during reeling, the swinging rod 40 swings to the position shown by the chain line due to the increase in thread tension, as in the conventional device, and pushes the micro switch 49. In addition, when the thread is cut, a thread cutter sensing device (not shown) installed in the thread path is activated and sends a signal to the solenoid 46, which is activated and the dogleg-shaped arm 44 is activated to pull the rod 47. In order to rotate clockwise in the drawing and push the cam piece 42, the swinging rod 40, which is integral with the cam piece 42, turns counterclockwise and pushes the micro switch 49 in the same manner as described above. The operation of the micro switch 49 activates the brake of the electromagnetic clutch 76, and the transmission of power from the motor 75 to the winding drum 80 is immediately cut off and braked, so that the winding drum 80 immediately stops. At the same time, the micro switch 49 operates the solenoid 70, pulls the protrusion 71, brings the brake shoe 73 into contact with the disc 55 of the dryer 20, and also turns off the electromagnetic clutch/brake 68 to cut off the transmission of power from the motor 60 to the dryer 20. will also stop immediately.

As detailed above, in the device of the present invention, a variable transmission torque type electromagnetic clutch is provided in the drive system between the drive source such as a motor that drives the winder and the winding means such as a winding drum, and the sensor When it detects the presence of a wound yarn, it operates an electromagnetic clutch to increase the torque transmission, increases the number of revolutions of the winding means to increase the amount of yarn to be wound, and the sensor of the drying device detects the presence of the wound yarn. When the presence of the thread is detected, the electromagnetic clutch is activated to reduce the torque transmission, and the rotational speed of the winding means is lowered to reduce the winding amount, so that the thread wound around the dryer increases or decreases toward the standard winding amount. Because of this, the amount of yarn on the dryer can be kept almost constant during winding, and the dry condition of the yarn staying in the dryer can also be kept constant throughout the yarn, which prevents dry yarn unevenness. It is possible to prevent the occurrence of uneven elongation of the yarn, etc., and improve the quality of the yarn.

In addition, since the wound yarn that is longer than the standard yarn length is pulled out in an unraveled state toward the standard yarn length of the yarn wound around the dryer, the yarn does not fall from the dryer, and dry yarn unevenness due to yarn falling occurs. It is possible to eliminate unevenness in thread tension when winding the thread with a thread winding means such as a winder.

[Brief explanation of the drawing]

The drawing is a schematic side view showing an example of implementation of the device of the present invention. 1... Yarn reeling device, 3... Yarn reeling section, 4... Dry yarn winding section,
6... Yarn reeling tank, 9... Yarn gathering device, 11... Fineness sensing device, 12... Yarn failure stop device, 20... Dryer, 53... Vertical shaft, 57... Yarn guide rod, 76... Electromagnetic clutch, 80... Winding drum , 90...
sensor.

Claims (1)

[Claims] 1. It has a reeling section equipped with a yarn collection device, a fineness sensing device, a yarn failure stop device, etc. on the upper part of the reeling tank, and a plurality of yarn guide rods hanging concentrically around the vertical axis. The thread guide rod is supported to revolve around and rotate on its own axis, and the thread to be dried is wound from the top to the bottom of the thread guide rod, and the thread is pulled out in the direction of the vertical axis below the vertical shaft. In a yarn reeling device that includes a dryer, a sensor that detects the presence of yarn wound on the dryer, and a dry yarn winding section that is equipped with a winder, a drive source such as a motor that drives the winder and a winding drum that drives the winder are connected to each other. A variable transmission torque electromagnetic clutch is provided in the drive system between the winding means and the winding means, and when the sensor detects the presence of winding yarn, the electromagnetic clutch is operated to increase the torque transmission and increase the rotational speed of the winding means. When the sensor of the drying device detects the absence of the winding yarn, the electromagnetic clutch is activated to reduce the torque transmission and the rotational speed of the winding means is lowered to reduce the winding amount. A yarn reeling device characterized in that the yarn wound around the dryer is wound up so that it increases or decreases toward a standard winding amount.