JPH07107202B2 - Automatic tow switching device - Google Patents

Description

The present invention relates to an automatic tow switching device. More specifically, the present invention relates to an automatic tow switching device that does not require constant monitoring, shortens recovery time when winding tow on a transfer roll, and enables safe operation.

[Conventional technology]

In melt-spinning general-purpose synthetic fibers such as polyester and polypropylene, a polymer is discharged from a large number of spinnerets (1) to form a large number of fiber bundles (tows), and a transfer roll (8, 9) rotating at high speed. In general, it is transferred to a storage container such as a can (12). (Fig. 2) Generally, the total fineness of tow is generally as thick as several thousand denier to tens of thousands denier in order to improve productivity. The transfer conditions of the transfer rolls (8, 9) are carefully set by selecting the nip pressure, the speed ratio with the guide roll (5), or the spinning oil agent. However, due to single yarn breakage, single yarn winding of the tow that is being fed, and the like, yarn winding and tow winding often occur on the transfer roll. (Fig. 2) When winding occurs on the single transfer roll (8, 9), the transfer roll (8, 9) is stopped, and the toe is passed by the toe yarn path E by hand or by air sucker. After winding on the take-up roll (6), the yarn waste of the transfer roll is removed, and the tow yarn path is manually moved to the route F, and then the transfer roll is restarted and stopped by stopping the take-up roll. It was being switched. (FIG. 2) [Problems to be Solved by the Invention] In the conventional device, when winding on the transfer roll occurs, the transfer rolls (8, 9) must be stopped. Further, if the stop of the transfer rolls (8, 9) is delayed, the tow that has been transferred into the can is also caught up, and the entire rotating body is wrapped around, and all the rotating bodies such as the guide roll (5) and the take-up roll (3) are stopped. There must be. For this recovery, it was necessary to remove the wound thread waste and stop the discharge of the thread when the recovery takes a long time. Therefore, it takes a long time to recover and a large amount of waste thread is generated. Further, the winding tow sometimes applied an abnormal load to the transfer roll gear box portion, and the gear was sometimes damaged. There is a problem in that constant monitoring is required to minimize the winding of the transfer roll, and the switching work requires a lot of labor and is dangerous.

That is, an object of the present invention is to provide a device that promptly switches the tow wound around the transfer roll and swirls promptly, and further provides the device having high safety.

[Means for solving problems]

The present invention relates to a yarn winding sensor for detecting yarn winding on a transfer roll, which is composed of any one of an abnormal current detection means of a transfer roll drive motor or an image analysis means by an image sensor (16) or a combination thereof, and a thread winding sensor. A cutter (7) that operates according to the signal from the sensor and is fixed to the toe yarn path, or can be pushed and moved to the yarn path by the cutter moving device (15), and the tow cut by the cutter Winding roll (6) for winding,
A winding device (11) having means for moving the winding roll up and down, left and right, or rotating around the tow transfer device (10), one set of transfer rolls (8, 9) and another A tow transfer device having means for arranging more than one set of transfer rolls in the housing (13), mounting and fixing the housings on the turntable, and rotating the turntable when switching the transfer rolls to switch the transfer rolls. (10) An automatic tow switching device, characterized in that

Further, the present invention provides a yarn winding sensor, a yarn winding sensor, for detecting the yarn winding on the transfer roll, which is composed of either the abnormal current detecting means of the transfer roll drive motor or the image analyzing means by the image sensor (16) or a combination thereof. A cutter (7) that operates according to a signal from an attached sensor, and is fixed to the tow yarn path or is arranged so that it can be pushed and moved to the tow yarn path by a cutter moving device (15). , A means for moving the take-up roll (6) that winds the tow cut by the cutter by the air flow of the air blower (14), and a means for moving the take-up roll vertically and horizontally around the tow transfer device (10), or rotation. Winding device equipped with moving means (1
1), 1 set of transfer rolls (8, 9) and 1 or more other set of transfer rolls are arranged in the housing (13), and the housing is mounted and fixed on the turntable. The tow automatic switching device is characterized mainly in that it comprises a tow transfer device (10) equipped with means capable of rotating and switching the transfer roll.

Next, the present invention will be specifically described with reference to the drawings.

The control system of each device is mainly composed of the following control systems. That is, an air-cylinder, a hydraulic cylinder, an ascending / descending / traversing movement of a winding roll, an operation of a cutter, a rotation of a turntable, an operation-related control system for controlling sensors,
A speed-related control system for controlling the rotation speed of a transfer roll, a take-up roll, a guide roll, etc., a positional relationship between individual devices, an operation sequence relationship, and a time-related control system. A part of the control system may be incorporated in a sequence process control or a microcomputer.

The yarn winding sensor of the present invention is a sensor for detecting the yarn winding or the tow winding, and is obtained by detecting the abnormal value of the current of the transfer roll drive motor or the image sensor (16) during winding of the transfer roll. It is a detecting means from the image information, and both may be arranged.

The cutter (7) of the present invention automatically operates the tow wound around the transfer rolls (8, 9) in response to a signal from the yarn winding sensor. The cutter may be fixed to the tow yarn path, or may stand by behind the tow yarn path during normal operation and push the cutter to the tow yarn path by the cutter moving device (15). Further, since the tow cut by the cutter is wound around the winding roll (6), the air jetting machine (14) for jetting air can be arranged. (FIG. 7) Air can be ejected to the air ejector by a solenoid valve. The cutter may be operated by a solenoid valve. Also tow transfer device (10)
The cutters (7) corresponding to the number of sets of the transfer rolls can be arranged on the side surface of the housing (13), and the cutters (7) can be arranged independently of the housing (13).

The winding device (11) of the present invention is capable of moving the winding roll up and down, left and right around the transfer roll (8, 9), and a device for moving the winding roll up and down, and a traverse for horizontally moving. It is a device or a device that can be rotated around the transfer rolls (8, 9) to take-up roll positions (6A) (6B) (6C) (6D).

Taking a device for raising or lowering the winding roll (6) as an example, the winding roll (6) is
Tsuba (1) to prevent the thread from wrapping around the motor shaft.
9) and is further connected to the take-up roll drive motor. The take-up roll drive motor is fixed to the gantry, and the gantry can be raised or lowered by the piston of the air cylinder. The air cylinder is supported and fixed to the support plate of the carriage (17). A guide support plate for preventing its rolling and vibration and a guide engaged with a guide rail described later are fixed to the gantry. On the carriage (17), a guide rail support column on which guide rails are arranged, and a traverse motor which is a traverse device of the carriage (17) are arranged together with a pinion. Furthermore, the trolley is mounted on the traverse pole where columns and rails are arranged, via wheels.
(FIGS. 3 and 5) In the present invention, the winding device (11) includes a device for winding the winding roll (6) uniformly in the width direction, which is arranged in the width direction. It is also possible to arrange in the vicinity of (6) and the winding roll.

The tow transfer device (10) of the present invention is composed of one set of transfer rolls (8, 9) and two or more sets of transfer rolls capable of switching another transfer row. Transfer roll (8, 9)
The switching method may be any method that can switch the transfer roll around which the yarn is wound, such as a turntable moving method, to a backup transfer roll, but the number of transfer rolls in one set is preferably as many as possible, but is usually two. .

On the front side of the housing (13), a set of transfer rolls (8,
9) can be arranged, and another set of transfer rolls to be switched can be arranged on the back surface side when the yarn winding occurs. (Fig. 4) The transfer roll is composed of a metal roll having a flat surface (Fig. 1), and is of a gear type (Fig. 8).
A) and a cage type having a bar on the mountain portion (FIG. 8B) can be exemplified. The transfer roll (8) is usually wider than the transfer roll (9). (FIG. 1, FIG. 4, FIG. 6).

The tow transfer device (10) has a housing (13) mounted and fixed on a turntable. The tow transfer device (10) has a housing (13) mounted and fixed on the bottom of the turntable via a turntable drive motor and gears. The turntable can rotate (Fig. 3) and the turntable has two left and right fixing pins (20) for fixing. (FIG. 4) Further, two or more sets of transfer rolls and their drive units may be arranged and switched in one housing (13). (4th
(Fig.) When the guide bar (18) is arranged, when the winding roll (6) descends from 6C to 6D, it prevents the tow from being wound around the shaft of the transfer roll, and the wide transfer roll (8). Conveniently, the upper, narrow transfer roll (9) can be guided to the correct tow path through the front side. (Fig. 6) The position of the guide bar is the housing (13) of the tow transfer device (10).
May be fixed to the guide bar of the winding roll.

[Action]

Next, the operation of the present invention will be specifically described according to an example based on the drawings of the present invention.

The tow (4) passes through the 1 to 7 guide rolls (5), the winding roll (6) which rotates at the position 6A which is the roll fixed position, and the transfer roll (8, 8) of the transfer device (10).
By 9), it is transferred to the can (12) along the tow yarn path A. (Fig. 1) The rotation speed of each rotary table is the same as that of the take-up roll (3) or slightly higher in the order of the transfer roll (8, 9), the take-up roll (6) and the guide roll (5). There is.

When the tow is wound around the transfer rolls (8, 9), the signal received by the image sensor or the like is processed by the control device, the cutter moving device (15) is activated, and the cutter is pushed forward,
The cutter enters the toe thread trail. (Fig. 7) At the same time, the air release solenoid valve of the air ejector opens and air is ejected. Further, the cutter is operated by the electromagnetic valve to cut the tow, and at the same time, the tow is wound up on the winding roll (6). After a slight dry time lag, the rotation of the transfer rolls (8, 9) is stopped and one stage of automatic switching is completed.

Next, after the tow cutting, the two left and right fixing pins for fixing the turntable are released. (Fig. 4) After that, the turn tail is driven by a drive motor incorporated in the turn table moving device, and slowly rotates 180 ° with the wheels around the turn table shaft via gears to switch to the front side. Transfer roll comes for. The fixing pin of the turntable descends, the tow transfer device is fixed again, and the yarn winding switching device is in a standby state until the preparation of the winding roll device described later is completed.

The take-up roll (6) wound with the tow is slowly moved up to the position 6B by the operation of the air cylinder. After that, the traverse motor, which is one of the traversing devices, is driven and the rack is conducted through the pinion to reach 6C. The tow thread path follows the path C. After that, the take-up roll slowly descends by the operation of the air cylinder, and the take-up roll reaches 6D.

The tow is guided by the guide bar (18) so that the wide transfer roll (8) correctly passes the upper side, the front side of the narrow transfer roll (9), and moves to the winding roll (6) moved to the 6D position. After being wound, the tow thread path becomes the path of D.

At the same time when the take-up roll reaches 6D, the transfer rolls (8, 9) for switching are rotated by the signal from the control device, at the same time the take-up roll (6) is stopped, and the tow follows the path of the tow yarn path A. , The transfer roll (8) is transferred to the can through the transfer roll (9), and the transfer roll switching process is completed.
(Fig. 4) After that, the tow between the can and the take-up roll is cut with scissors or cut with an automatic cutter, and the take-up roll 6C, 6
After taking the path of B, the winding roll is installed in the control device so that the winding roll starts to rotate at the point of 6B, and the winding roll reaches 6A and returns to the steady position. Further, the waste thread wound around the transfer roll on the back side of the housing is cut and removed by a cutter or an automatic cutter, and the entire work of the transfer transfer of the tow is completed.

Further, in the present invention, it goes without saying that some or all of operations such as raising, lowering, rotation start of the winding roll, traverse of the carriage, and various operations of the tow transfer device can be manually operated.

〔The invention's effect〕

A first effect of the present invention is that the recovery when the tow is wound around the transfer roll is automatically switched to the take-up roll, so that the constant monitoring work is unnecessary.

The second effect of the present invention is that the return process when the transfer roll head is wound is automatically switched, so the work of removing waste yarn is reduced. Further, according to the conventional device, it takes about 15 to 25 minutes or more for winding on the transfer rolls (8, 9), winding on all the rotating bodies, complete stop of yarn discharge, and removal of these waste yarns. However, according to the apparatus of the present invention, it takes about 50 seconds to 2 minutes and the production efficiency is further increased.

A third effect of the present invention is that automatic switching is performed and the tow that has been shaken in the canister is not wound and wound, so that there is no load exceeding the gearbox limit of the transfer roll and the drive system is not damaged.

The fourth effect of the present invention is that since the switching operation is automatically performed and rapid work is unnecessary, safe operation is possible.

A fifth effect of the present invention is that the target to be switched is not only synthetic fibers in melt spinning, but also crimped tow having a large fineness of several thousand to several hundred thousand denier, multifilament, spun yarn,
There is a wide range of applications such as tape yarns and fiber rods.

[Brief description of drawings]

FIG. 1 is an overall schematic perspective view of an apparatus to which an embodiment of the present invention is applied, and FIG. 2 is a schematic front view for explaining a conventional apparatus. FIG. 3: Overall schematic front view of an apparatus to which an embodiment of the present invention is applied, FIG. 4: Overall schematic plan view of an apparatus to which an embodiment of the present invention is applied, and FIG. 5: One embodiment of the present invention Fig. 6 is a schematic side view of the winding device, Fig. 6: a schematic side view for explaining the arrangement relationship between the transfer roll and the guide bar, and Fig. 7: a schematic side view for explaining the arrangement relationship between the cutter and the air ejector. Figure, Figure 8A: Schematic perspective view of gear type transfer roll, Figure 8B:
Schematic perspective view of basket-type transfer roll Explanation of symbols (1) ... Mouth, (2) ... Fiber, (6) ... Winding roll, (7) ... Cutter, (8) ... Transfer roll,
(9) …… Transfer roll, (10) …… Tow transfer device, (1
1) …… Winding device

Claims (2)

[Claims] 1. A thread winding sensor for detecting thread winding on a transfer roll, which comprises any one of an abnormal current detecting means of a transfer roll drive motor and an image analyzing means by an image sensor (16) or a combination thereof, and a thread winding sensor. A cutter (7) that operates according to a signal from an attached sensor and that is fixed to the toe yarn path or that can be pushed and moved to the yarn path by the cutter moving device (15), a tow cut by the cutter Winding roll (6) for winding the winding roll, winding device (11) having means for moving the winding roll up and down, left and right around the tow transfer device (10), or means for rotating the winding roll (11); The transfer rolls (8, 9) and one or more other transfer rolls are arranged in the housing (13), the housing is mounted and fixed on the turntable, and when the transfer rolls are switched, Over down by rotating the table, automatic switching apparatus tow, characterized in that consisting of a tow transfer apparatus having a means capable of switching the transfer roll (10). 2. A yarn winding sensor and a yarn winding sensor for detecting the yarn winding on the transfer roll, which is composed of any one of an abnormal current detection means of a transfer roll drive motor and an image analysis means by an image sensor (16) or a combination thereof. A cutter (7) that operates according to a signal from an attached sensor, and is fixed to the tow yarn path or is arranged so that it can be pushed and moved to the tow yarn path by a cutter moving device (15). , A means for moving the take-up roll (6) that winds the tow cut by the cutter by the air flow of the air blower (14), and a means for moving the take-up roll vertically and horizontally around the tow transfer device (10), or rotation. Winding device equipped with moving means (1
1), 1 set of transfer rolls (8, 9) and 1 or more other set of transfer rolls are arranged in the housing (13), and the housing is mounted and fixed on the turntable. An automatic tow switching device, comprising: a transfer device (10) having means for rotating and switching the transfer roll.