JPS6052633A - Doffing machine - Google Patents

Abstract

PURPOSE:To facilitate the selction of defective packages and non-defective packages, and to transport the defective packages and non-defective packages using the same transfer line, by detecting the displaying signal of a winding unit, and energizing the marking mechanism. CONSTITUTION:The defective package is indicated by flushig a full-bobbin indication signal lamp 14 attached to each winding unit 2a, and the signal is detected by the sensor S2 of the doffing apparatus to energize the solenoid 19. The marking piece 20 is made to contact with the surface of the wound yarn 11 by the arm 18 to form a ring mark 62 having a color different from the wound yarn layer and representing the defective package. The marked defective package is delivered to the transfer line.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a doffing device, and more particularly to a doffing device for doffing packages that are unwound in 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 packages with a yarn amount and shape suitable for use in the subsequent process, i.e., looms and knitting machines. returned.

If there is a defect in the automatic winder used in the above-mentioned rewinding process, the slab catcher installed in the winder will cause the
It is common practice to detect a slab or the like, actively cut the yarn, remove the defective part, tie the yarn, and start winding again.

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

In other words, if a package containing a certain amount of yarn is tied with a thread knot [1], the knot will get caught in the needle hole, mail, etc. in the subsequent process of the knitting machine, loom, etc., causing the thread to break.
Even if you don't have to tie the thread many times or break the thread.

It is necessary to push the knot protruding from the raised edge of the cloth surface into the back side of the cloth, which is extremely troublesome.

Also, the fact that the number of times the thread is tied during rewinding is large means 1. On the other hand, this means that the quality of the thread itself in the wound package is poor.In other words, since there are many defective parts detected by the slab catcher, there are also many defective parts of the thread that are not detected by the ring. Conceivable.

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 and 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 packages that are transferred on a common conveyor. This allows workers 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 a 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 located on the negative side of an automatic winder (1) in which a large number of winding units (2a) to (2n) are arranged in parallel.
A control box (4) is installed, and the winding unit (2n) at the end of the driving box is connected to the winding unit I-(2n) at the other end.
A ceiling rail (5) spanning the entire length is laid above between a), and an automatic doffing device (6) reciprocates along the rail (5).

As shown in FIG.
, through the slab catcher (9), the traverse drum (1 o
) is wound onto a package (11) which is surface driven by a cradle arm (12).
The package is supported by the doffing device (6) to wind a predetermined amount of yarn, and the fully wound package is sent to the conveyance path (6) at the back of the unit.
13) The bobbin is unloaded upward, a new empty bobbin is inserted into the cradle arm, and winding is restarted.

Furthermore, each unit (2a) to (2n) is provided with a full winding indicator lamp (14) on the unit frame, and when a predetermined amount of yarn has been wound, the lamp (14) is turned on by the control device described later. , a full winding display signal is issued to the operator or 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, an arm (18) and a solenoid (19) for advancing and retracting the arm (18) are provided on a horizontal board (17) fixed on a doffing device frame C16). The above arm (18
) A painted piece (20) of a color different from that of the thread layer is fixed to the end face of the package, and the other end is attached to the shaft (20) on the substrate (17).
21) A pivot (
27) To be done. Also, a link (24) rotatable around the shaft (23) is pivotally supported on the other shaft (23) on the substrate (17), and the tip of the link (24) is connected to the intermediate portion of the arm (18). It is pivoted at (25). The middle part of the link (22) is connected to the actuator (26) of the solenoid (19), and as the actuator (26) advances and retreats, the arm (18) moves between the solid line position, that is, the standby position, and the two-dot chain line position (18a). That is, the marking position can be taken.

The arm (18) can be stored in the doffing frame while the doffing device (6) is running, and can stand by at a position where it does not interfere with the winding unit, and when in operation, can move forward and turn in a wide direction so as to come into contact with the end surface of the package. Although a link mechanism is used in this embodiment, it is of course possible to use various other marking devices as long as they can be accommodated in the truck. In addition, (S2) in FIG. 3 is a sensor rotating roller that detects the blinking of the lamp (14) provided in the doffing device, and this roller (29) is used in either the doffing device for cheese packages or corn packages. is also required, and when a gripping device (not shown) temporarily grips the yarn between the tube yarn and the package during hot water heating, or when a fully wrapped package is being wrapped around the ears, it can be rotated from the standby position in the frame to the position shown in the figure. After that, the package is rotated. 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 painted piece (20) is in contact with the end surface of the package, when the package is rotated, Markings are applied.

Next, a device for determining whether a package wound up by a winding unit is good or bad, and a device for detecting a blinking signal in the case of a defective package and operating a marking device will be described.

In FIG. 5, the winding package (11) is connected to the motor (2).
9) rotates by making surface contact with the traversing drum (10) driven by the traversing drum (10). 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 and the motor (31) is closed during normal winding.
29) is rotated, but when the thread breaks or doffs, the switch opens, the traversing drum stops, and winding is stopped.

A magnet (32) is embedded in the end face of the traversing drum (10), and a sensor (32) provided close to the magnet (32) generates one pulse every time the drum (10) rotates. It has become.

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

Furthermore, a data collection control device (35) that collects and processes pulse signals generated by the rotation of the drum;
A defective package sorting processing control device (36) is provided which receives data from the package and sorts out whether the packages are good or bad.

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., and when the winding is full, a signal from the device (35) is sent to the specific unit. A full wind signal is output (37) to turn off the relay (34) of the drive drum switch (31).
The switch (31) is opened and winding is stopped.

On the other hand, the defective package sorting processing control device (36) transmits the full winding signal and the thread knotting number signal to the data collection control device (35).
A reception interface (38) that receives data from the computer, a calculation device (39), a ROM (40) for the calculation program, an interface (43) that stores settings such as the number of knots to be tied, a chair (44), etc. based on the calculation results. It is composed of

That is, the defective package sorting device (36) is configured such that the upper limit of the number of thread knots can be arbitrarily set, 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 that have occurred on the weight is transferred from the data collection control device (35) to the defective package sorting control device (36) and added up. This addition operation continues until the next full wind signal is generated.
The added value and the set upper limit value are compared when a full winding signal is generated, and if it exceeds the set value, it is determined that the package is defective, and the full winding signal lamp in each unit of the automatic winder is used to detect the relevant package. It sends a blinking signal to the unit and causes the lamp to flash.

The number of thread knots can be determined, for example, as follows. That is, during normal winding, the magnet (22) periodically approaches and separates from the sensor (33) due to the rotation of the drum (10), and the sensor (33) periodically generates pulses (45). The generated pulse signal (45) is input to and counted by a 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 (1o) is stopped, so no pulse signal is generated from the sensor (33).

That is, in the data collection control device (35), if there are at least 4 pulse signals input within a certain period of time, it is determined that the thread is being tied, and 1 pulse is input to the memory (inkstone).
Memorize the number of thread knots. Note that if the above fixed time is set as the time required for at least one thread tying operation, the memory ( 46), one pulse is input.

In this way, one thread is stored in the memory (46) for each thread tying operation.
Pulses are input and the number of thread knots is accumulated and stored.

When the number of pulse signals generated from the winding sensor (33) reaches a predetermined number, that is, the data collection control device (35
) is wound with a preset length of thread, the device (
A full wind signal (37) is generated from 35), the drum drive switch (31) is turned off, and the thread knotting number data (to ) and the set upper limit of the number of thread knots (n) are compared and calculated by the calculation device (39). If it is N7n, it is determined that the package is defective, and the display driving device (47) is driven via the output interface (44).
A signal is sent to blink the full volume indicator lamp (14) of the winding unit, and the lamp (14) blinks.

The blinking of the lamp can be performed, for example, by the drive device shown in FIG. In other words, the defective package sorting process control device (
36) via the data bus (48), LS ■ port) (
49') are connected, signal lines (50a) to (50n) corresponding to the number of winding units are connected from the boat (49), and photocouplers (51a) to (50n) are connected to each winding unit.
1n), amplifiers (52a) to (52n)S, relay contacts (53a) to (53n), and lamps (Lla) to (
14n) are connected in series. A blinking command timer (54) is provided in the control device (3G), and when it is determined that the package is defective, the timer (54) operates and the signal line (54) is activated.
The arithmetic unit (39) is operated to periodically turn on and off the current output to the terminal (0a).

Therefore, when blinking the lamp (14,a) of the winding unit, current flows intermittently to the signal line (50a) by the timer (54) of the control device (36) and the calculation device (39), and the photocoupler Current flows intermittently into the wire (55a) via (51a), causing the lamp (14a) to blink periodically.

Note that the photocoupler (51a) is connected to the signal line (50a).
Once the current is converted into light, the line (55a
) in which a minute current is generated in the signal line (5
0a) (55a), and the signal line (55a
, ) are provided to prevent electrical disturbances from propagating to the control device (36) side.

The relay contact (53a) closes when a full wind signal is generated and remains closed until doffing is completed, and the signal (37) is output from the data collection control device (35) in Fig. 5.
Opens and closes by

Therefore, in a good package, the relay contact (53
a) closes, and the timer (36) in the control device (36) starts.
54) is not activated and current continues to flow through the line (55a), the lamp (14a) lights up and does not continue to 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) (Slb) (
S2) is mounted at an angle that can detect the lamp (14-a) of the unit (2a), and the first sensor (Sl
a) (Slb) detects the full volume display, and the second sensor (Slb)
2) detects a blinking signal.

Note that the first sensor (sla) has a trolley (6) pointing at an arrow (56).
), the sensor (Slb) detects the ramp (14a) while the bogie (6) is traveling in the direction of arrow (57), and takes signals for deceleration and positioning of the bogie. . Therefore, when the truck (6) stops at the doffing position with respect to the unit (2a), the sensor (S
2) The mounting position has been set.

In the state shown in FIG. 7, when the full volume indicator lamp (14a) of the winding unit is blinking, the marking device operates according to the block diagram of FIG. 8.

That is, in FIG. 8, the sensor (S2) is connected to the lamp (14).
, a), and generates an electrical pulse signal (5
8) to the time unit (60) via the amplifier (59)
Enter. The time unit (6o) integrates the light-off time (j) within a certain period of time from the pulse signal, compares it with the set value (il), and calculates j-r>il (r: 1.2.3.
), the solenoid drive relay (61)
energize and turn on the solenoid (19).

Note that the time unit (60) is integrated after confirming that the doffing cart is stopped at a fixed position, and the relay (61) is energized by the doffing truck installed in the doffing device. This is done in synchronization with the driving of the rotary roller by a program cam for driving the mechanism, and the colored piece (20) comes into contact with the end surface of the package at least while the package is being rotated by the rotary roller or before. As such, the relay (61) and solenoid (19) are turned on.

Therefore, the doffing truck is full package display lamp (14)
When the winding unit stops at a position where is lit or blinking, if the package concerned is a package that has been knotted more times than the set number of knots, the second sensor (S2) for detecting the blinking signal will turn on the lamp (14). ) is detected, and the third,
As shown in Figure 4, the solenoid (19) operates and the arm (1
8) extends to the end surface (lla) of the package (11), the painted piece (20a) at the tip contacts the yarn layer surface (lla), and during the doffing operation, the package (11) is removed by the rotating roller (28). ), an annular band mark (62) of a color different from that of the thread layer is attached to the end face (Ila) of the package.
1. It is visually displayed that the package in question 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 FJ, and are carried on the same conveyor as the good packages toward the end of the winder. transported.

As described above, in the present invention, the doffing device includes an N sensor that detects a defective package display signal displayed on each winding unit side, and an identification mark attached to a defective package based on the signal from the sensor. Since it has a marking mechanism, it is possible to easily sort out defective packages and good packages, and it is also possible to transport them mixed up on the same transport path, so that the package sorting work can be carried out efficiently.

[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 display lamp, and a block diagram showing the printing method of the marking mechanism.

Claims (1)

[Claims] A doffing device comprising: a sensor that detects a defective package display signal displayed on each winding unit; and a merging mechanism that attaches an identification mark to a defective package based on the signal from the sensor.