JPS6137366B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a doffing device, and more particularly to a doffing device for doffing packages wound by an automatic winder.

Yarn produced by a spinning machine, especially a ring spinning machine, is usually wound around a bobbin, conveyed as a so-called spun yarn, and then supplied to a rewinding process. Due to the mechanical limitations of the ring spinning machine, each tube yarn has a small amount of yarn, only a few hundred grams at most, and is wound into a package with a yarn amount and shape suitable for use in the subsequent process, that is, weaving and knitting machines. returned.

In the automatic winder used for the above-mentioned rewinding process, if there is a yarn defect such as a slab or a fine yarn part during rewinding, a slab catcher installed in the winder detects the above-mentioned slab, etc. and actively Generally, the yarn is cut, the defective part is removed, the yarn is tied, and winding is started again.

In this case, if the pipe yarn has many of the above-mentioned defects, the number of yarn breaks will naturally increase, and therefore the number of yarn knots will also have to increase.

In other words, if there are many knots in a package cage with a certain amount of thread wound up, the knots may get caught in needle holes, mails, etc. in subsequent processes such as knitting machines and looms, and the thread may break, causing the thread to break many times. Even if splicing is not required or thread breakage does not occur, it is necessary to push the knots protruding from the surface of the woven cloth into the back surface of the cloth, which is extremely troublesome.

In addition, a large number of thread knots during unwinding means that the quality of the thread itself in the wound package is poor; in other words, there are many defective parts detected by the slab catcher. Naturally, it is thought that there are many yarn defects that are not detected.

If such defective packages are transported mixed with good packages, it is almost impossible for workers to visually check and separate them during the knitting/weaving process.

The present invention has focused on the above-mentioned problems, and provides a doffing device that marks defective packages and transfers them onto a conveyor during doffing, and which packages are transferred on a common conveyor. This allows the operator to easily check and distinguish between good and bad products.

That is, the present invention provides a doffing device having a sensor for detecting a defective package display signal displayed on each winding unit, and a marking mechanism for attaching an identification mark to the defective package based on the signal from the sensor. It is.

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

1 and 2 show the relationship between the automatic winder 1 and the doffing device. A driving box 3 is installed on one side of the automatic winder 1 in which a large number of winding units 2a to 2n are arranged in parallel.
A control box 4 is installed, from the winding unit 2n at the end of the driving box to the winding unit 2 at the other end.
A ceiling rail 5 over the entire length is laid above the space a, and an automatic doffing device 6 reciprocates along the rail 5.

As shown in FIG. 2, the winding unit 2a is
The thread Y pulled out from the pipe thread 7 is passed through a tension device 8,
The yarn is wound through a slab catcher 9 onto a package 11 whose surface is driven by a traversing drum 10.The package 11 is supported by a cradle arm 12 and winds a predetermined amount of yarn, and the fully wound package is rolled into a ball. The lifting device 6 unloads the bobbin onto the conveyance path 13 at the back of the unit, a new empty bobbin is inserted into the cradle arm, and winding is resumed.

Further, each unit 2a to 2n is provided with a full winding indicator lamp 14 on the unit frame, and when a predetermined amount of thread has been wound, the lamp 14 is turned on by a control device, which will be described later, and a full winding display signal is sent to the operator. Or it is sent to the doffing device 6.

On the other hand, the doffing device 6 has a marking device 15 shown in FIGS. 3 and 4. That is, the arm 18 and the extension/extension of the arm 18 are placed on the horizontal substrate 17 fixed on the doffing device frame 16.
A retraction solenoid 19 is provided. At the tip of the arm 18, a painted piece 20 of a color different from that of the yarn layer is fixed to the end face of the package, and the other end is pivoted 27 to the tip of a link 22 rotatable around a shaft 21 on the substrate 17. Ru. A link 24 rotatable about the other shaft 23 on the substrate 17 is also pivotally supported, and the tip of the link 24 is pivotally supported 25 at the intermediate portion of the arm 18 . Above link 2
The middle part of 2 is actuator 2 of solenoid 19.
6, and by advancing and retracting the actuator 26, the arm 18 can take a solid line position, that is, a standby position, and a two-dot chain line position 18a, that is, a marking position.

The arm 18 can be stored in the trolley frame while the doffing device 6 is running, and can stand by at a position where it does not interfere with the winding unit.When in operation, the arm 18 is equipped with a link mechanism so that it can move forward and turn widely so as to come into contact with the end surface of the package. However, of course, various other marking devices are applicable as long as they can be accommodated within the truck. Note that S2 in FIG. 3 is a sensor that detects the flashing of the lamp 14 provided in the doffing device;
2 detects the extinguishing time of the lamp 14, and the solenoid 19 is activated by a circuit described later. 28 is a package rotation roller provided in the doffing device 6, and this roller 28 is required for either the doffing device for cheese packages or for corn packages, and the yarn between the tube yarn and the package during doffing is not shown. When the gripping device temporarily grips the package or wraps the fully wound package around the ears, it rotates from a standby position in the frame to the position shown in the figure, and then rotates the package. Therefore, the marking device 15 applies markings by utilizing the rotation of the package when the rotating roller 28 is operated, and as long as the colored piece 20 is in contact with the end surface of the package, the marking can be applied when the package is rotated. It is.

Next, we will explain the device that determines whether the package being wound up by the take-up unit is good or bad, and the device that detects a blinking signal when a package is defective and activates the marking device.

In FIG. 5, the winding package 11 is rotated in surface contact with the traversing drum 10 which is driven by a motor 29. In FIG. The motor 29 is turned on and off by a power source 30 via a drive switch 31. The drive switch 31 is closed during normal winding to rotate the motor 29, but when the yarn breaks or doffs, the switch 31 opens, stopping the traversing drum and stopping the winding.

A magnet 32 is embedded in the end face of the traverse drum 10, and a sensor 33 provided close to the magnet 32 generates one pulse each time the drum 10 rotates.

Note that 34 is a relay for stopping the drum drive when a doffing signal is generated.

Further, there is a data collection control device 35 that collects and processes pulse signals generated by the rotation of the drum, and a defective package sorting control device 3 that receives data from the device 35 and selects whether the packages are good or bad.
6 is provided.

A pulse signal for each winding unit is input to the data collection control device 35, which measures and stores the number of yarn knots, calculates the winding amount, etc. When the winding is full, the device 35 sends a full winding signal to the specific unit. is output 37
and the relay 34 of the drive drum switch 31
is turned off, the switch 31 is opened, and the winding is stopped.

On the other hand, the defective package sorting process control device 36
is a receiving interface 38 that receives the full winding signal and the thread knotting number signal from the data collection control device 35;
and arithmetic unit 39, ROM4 for arithmetic programs
0, RAM41 that stores the setting value of the number of thread knots, etc.
Alternatively, there is an input interface 4 for inputting data from an operation panel 42 for setting the upper limit of the number of thread knots.
3. It is composed of an output interface 44, etc., which outputs a defective package signal based on the calculated result.

That is, the defective package sorting device 36 has the following:
The upper limit of the number of thread knots can be set arbitrarily, and when one spindle of the automatic winder generates a full winding signal and the doffing is completed, the device 36 is restarted and The number of thread knots is transferred from the data collection control device 35 to the defective package sorting control device 36 and added. This addition operation continues until the next full winding signal is generated, and the added value and the set upper limit value are compared when the full winding signal is generated, and if the value exceeds the set value, it is determined that the package is defective.
The full winding signal lamp in each unit of the automatic winder is used to send a flashing signal to the unit to cause the lamp to flash.

The number of thread knots can be determined, for example, as follows. That is, during normal winding, drum 1
0 rotation causes the magnet 22 to periodically approach and separate from the sensor 33, and the sensor 33 periodically generates pulses 45. The generated pulse signal 45 is input to and counted by the data collection control device 35, and the winding length is measured by a calculation device within the device.

When a thread breakage occurs, the drum 10 is stopped via a relay (not shown), and the thread tying operation is automatically performed. During this thread tying operation, the drum 10 is stopped, so no pulse signal is generated from the sensor 33. That is, in the data collection control device 35, if no pulse signal is input within at least a certain period of time, it is determined that the thread is being tied, one pulse is input to the memory 46, and the number of thread knots is stored. Note that if the above-mentioned certain time is set as the time required for at least one thread tying operation, even if the first thread tying operation is unsuccessful and the second thread tying operation is successful, it will be stored in the memory 46. 1 pulse is input.

In this way, one pulse is input to the memory 46 for each thread tying operation, and the number of thread tying operations is cumulatively stored.

When the number of pulse signals generated during winding from the sensor 33 reaches a predetermined number, that is, when a predetermined length of yarn input and set in the data collection control device 35 is wound, the device 35 outputs a full winding signal 37. is generated, the drum drive switch 31 is turned off, and the data N of the number of yarn knots cumulatively stored in the memory 41 until the generation of the full winding signal and the set upper limit value (n) of the number of yarn knots are stored in the arithmetic unit. 39, a comparison operation is performed. If N≧n, it is determined that the package is defective, and the display drive device 47 is driven via the output interface 44, and a signal is sent to blink the full volume indicator lamp 14 of the winding unit. Perform blinking.

The blinking of the lamp can be performed, for example, by the drive device shown in FIG. That is, the data is sent to the defective package sorting processing control device 36 via the data bus 48.
An LSI port 49 is connected, and signal lines 50a to 50b corresponding to the number of each winding unit are connected from the port 49, and a photocoupler 51 is connected to each winding unit.
a to 51n, amplifiers 52a to 52n, relay contacts 53a to 53n, and lamps 14a to 14n are connected in series. A blinking command timer 54 is provided in the control device 36, and when it is determined that the package is defective, the timer 54 operates and operates the arithmetic device 39 so that the current output to the signal line 50a is periodically turned on and off. let

Therefore, when blinking the lamp 14a of the winding unit, a current is intermittently passed through the signal line 50a by the timer 54 of the control device 36 and the arithmetic unit 39, and a current is intermittently passed through the line 55a via the photocoupler 51a. The lamp 14a blinks periodically.

Note that the photocoupler 51a is connected to the signal line 50a.
When the electric current of
5a, and is provided to electrically separate the signal lines 50a and 55a and prevent electrical disturbances on the signal line 55a side from propagating to the control device 36 side. ing.

The relay contact 53a closes when a full winding signal is generated and remains closed until doffing is completed, and is opened and closed by a signal 37 output from the data collection control device 35 shown in FIG.

Therefore, in the case of a good package, the relay contact 53a is closed, the timer 54 in the control device 36 is not activated, and current continues to flow through the wire 55a, so the lamp 14a continues to be lit and does not blink.

An embodiment of a device for detecting the flashing signal and activating the marking device is shown in FIGS. 7 and 8.

That is, in FIG. 7, the doffing device 6 has sensors S1a and S1 at three positions along the running direction of the device.
b, S2 is mounted at an angle that can detect the lamp 14a of the unit 2a, and the first sensor S1
a, S1b detects the full volume display, and the second sensor S
2 detects a blinking signal. In addition, the first
Sensor S1a detects lamp 14a while truck 6 is traveling in the direction of arrow 56, and sensor S1b detects lamp 14a while truck 6 is traveling in the direction of arrow 57, and takes signals for deceleration and positioning of the truck. Therefore, the mounting position of the sensor S2 is set so that when the truck 6 stops at the doffing position with respect to the unit 2a, only the sensor S2 is in a position opposite to the indicator lamp 14a.

In the state shown in FIG. 7, when the full volume indicator lamp 14a of the winding unit is flashing, the marking device operates according to the block diagram of FIG.

That is, in FIG. 8, sensor S2 is connected to lamp 1.
4a, the electric pulse signal 5 is detected.
8 is input to the time unit 60 via the amplifier 59. The time unit 60 integrates the light-off time (t) within a certain period of time from the pulse signal, compares it with the set value (t1), and determines that t.r>t1 (r: 1.2.3...
), the solenoid drive relay 61 is energized and the solenoid 19 is turned on. Note that the time unit 60 performs the integration after confirming that the doffing truck is stopped at a fixed position, and
The relay 61 is energized in synchronization with the drive of the rotating roller by a program cam for driving the doffing mechanism installed in the doffing device, and at least when the package is rotated by the rotating roller. During or before that time, the relay 61 and solenoid 1 are connected so that the painted piece 20 comes into contact with the end surface of the package.
9 is turned on.

Therefore, when the doffing truck stops at a take-up unit position where the full package indicator lamp 14 is lit or flashing, if the package concerned is a package that has been knotted more times than the set number of knots, a flashing signal will be displayed. The second detection sensor S2 detects the flashing of the lamp 14, and the solenoid 1 is activated as shown in FIGS. 3 and 4.
9 is activated, the arm 18 extends to the end surface 11a of the package 11, the painted piece 20a at the tip contacts the yarn layer surface 11a, and during the doffing operation, the rotating roller 2
The rotation of the package 11 by 8 causes an annular band mark 62 of a color different from that of the yarn layer to be attached to the end face 11a of the package, thereby visually indicating that the package is a defective package. The defective packages displayed in this manner are delivered onto the conveyance path 13 in FIG. 2 by the doffing mechanism (not shown) of the doffing device, and are conveyed on the same conveyor as the good packages toward the end of the winder. Ru.

As described above, in the present invention, the doffing device includes a sensor that detects a defective package display signal displayed on each winding unit, and a marking mechanism that attaches an identification mark to the defective package based on the signal from the sensor. , it is possible to easily sort out defective packages and good packages, and it is also possible to mix and transport packages on the same conveyance path, making it possible to perform package sorting work efficiently. In addition, an identification mark can be added during doffing, so
It is effective because there is no time required only for the marking operation, and the doffing time does not increase.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the relationship between the automatic winder and doffing device, Fig. 2 is a side view of the same, Fig. 3 is a side view showing the state during marking operation, and Fig. 4 is the implementation of the marking mechanism. FIG. 5 is a block diagram showing an example of a defective package sorting process control device, FIG. 6 is a block diagram showing an example of a lamp blinking driving means, and FIG. 7 is a block diagram showing an example of a lamp blinking driving means. FIG. 8 is a front view showing the positional relationship between the sensor and the indicator lamp, and a block diagram showing the method of driving the marking mechanism. 2a to 2n... Winding unit, 6... Doffing device, 11... Package, 14... Lamp, 15
... Marking mechanism, S2 ... Sensor, 1 ... Automatic winder, 18 ... Arm, 19 ... Solenoid, 20 ... Colored piece, S1a, S1b ... First
Sensor, S2...Second sensor.

Claims (1)

[Claims] 1. In an automatic winder in which a number of winding units are arranged in parallel, each winding unit is provided with a full winding display means to indicate that a certain amount of yarn has been wound up, and a means for indicating the number of thread knots included in the full winding package. A doffing device is provided that indicates a defective package when the set value is exceeded, and a doffing device that runs along the winding unit and doffs the package wound up by the winding unit is provided. A first sensor that detects a full volume indication and issues a signal to stop the doffing device, a second sensor that detects the defective package indication, and a defective package marking device that operates based on the second sensor. The marking device has a drive source operated by the second sensor, and an identification mark applying member movable between a standby position and a marking position by the drive source. A doffing device characterized by: