JPS6044221B2 - How to store synthetic fiber tow - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In general, in the spinning process of synthetic fibers such as polyester, the spinning speed is 1 times faster than the post-processing speed such as stretching and cutting.
Because of the large size, it is not possible to continuously perform the spinning process and the post-processing process, so the method of storing the product in a can is adopted.

Traditionally, tow is a method of storing tow in cans.

There is a method in which air is ejected through a duct provided at the bottom of the air nozzle and stored in a can placed below the duct. In this case, when the can becomes full, it is replaced with an empty can, and the tow that bridges the full can and the empty can is cut to separate the full can from the empty can that has started storing the tow. be exposed. By the way, since the tow is ejected by the air nozzle as mentioned above, it shakes violently, so for example, when exchanging full cans and empty cans, a tow sorting device equipped with a cutter part is installed between the full cans and the empty cans. When trying to automatically cut the tow that is bridged between a full can and an empty can by using a tow, it is extremely difficult to pass the tow through the cutter section in an extended state without getting entangled.

The present invention has been arrived at as a result of intensive studies aimed at solving such troubles.

That is, in the present invention, a synthetic fiber tow is passed through a duct, and a can placed under the can is reciprocated back and forth and left and right to be stored, and when the can is full, the full can is moved forward in the dispensing direction. In a method for storing synthetic fiber tow, the synthetic fiber tow is sent to be exchanged for an empty can, and when the can is exchanged, the main body has a convex cross section and extends in a horizontal direction orthogonal to the tow dispensing direction. A tow sorting device with a concave cutter groove in the center of the longitudinal direction is placed between full and empty cans, and a spike-shaped chute with a semicircular cross section is swingably installed at the bottom end of the duct to open the tow sorting device. The tow is swung and tilted in the opposite direction to the can dispensing direction so that the side faces toward the empty can, the tow is allowed to slide down the chute and fall onto the empty can, and then the cutter is pushed out from one side of the cutter groove to remove the can. This method of storing synthetic fiber tow is characterized in that the tow extending between a full can and an empty can is cut by crossing a cutter groove and cutting the tow that is continuous between a full can and an empty can via the cutter groove.

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

In the figure, 1 is a sub-tow, which is formed by converging yarns spun from dozens of spinning heads through each guide, and then passing through a capstan roller, an air nozzle, and a duct 2. It is stored in a can 3 placed below.

The can 3 is traversed back and forth and left and right by a conveyor 4 that traverses in the A-B direction and a cart 5 that traverses in the C-D direction perpendicular to the conveyor 4, so that the sub tow 1 (hereinafter referred to as tow) is evenly stored. It's getting old. In this way, when the can 3 is filled with a predetermined amount of tow 1, the can 3 is returned to a predetermined position, such as the center, directly under the duct 2, and then the empty can 3a is placed on standby. is exchanged with There have been many proposals for braking the above-mentioned cans. For example, an auto counter that detects the amount of tow supplied from the rotation speed of the capstan roller issues a signal (full can signal) indicating that the tow has been supplied for a predetermined length. When the conveyor 4 and the cart 5 return to their normal positions (initial positions), the timer for controlling the conveyor, which receives the full can signal issued by the auto counter, expires and rotates the conveyor 4 in the direction of arrow B. This can be implemented by assembling a sequence circuit.

Reference numeral 6 denotes a gutter-shaped chute attached to the lower end of the duct 2 via a joint 7, and is capable of being swung out in a direction opposite to the direction of dispensing the cans 3 (in the direction of arrow A).

Reference numeral 8 denotes a sorting device, and 9 denotes its main body, which has a cylindrical shape with a convex cross section, and a concave cutter groove 10 is provided in the center thereof.

A cutter 11 is provided facing the cutter groove 10,
Usually, it is housed within the main body as shown in FIG. 1
2 is a fluid pressure cylinder for a cutter, and 13 is a shaft thereof, at the tip of which the cutter 11 is attached. 14 indicates a stopper.

In order not to lose its operating timing, the cutter 11 is energized by, for example, a full can signal from an auto counter, and then the tow 1 is stored in the empty can 3a replaced with the full can 3. A timer for fluid pressure cylinder control connected to an auto counter (not shown)
A control circuit is installed so that the cutter 11 is pushed out when the time is up.

15 is the upper edge of the main body 9, which slopes downward toward the cutter groove 10.

The sorting device 8 is perpendicular to a guide rail 16 arranged in parallel to the conveyor 4, and is attached to a slider 18 via a connecting rod 17 so that the cutter groove 10 can pass directly under the duct.

Both edges 16a of the guide rail 16 have a slightly downward slope.
．． 16b is supported by lifting cylinders 19 and 21. The elevating cylinder 21 is longer than the cylinder 19, and the guide rail 16 slopes downward toward the supply side of the empty cans 3a when the shafts 20 and 22 are elevated. At this time, the height at which the guide rail 16 is lifted is sufficient as long as the lower end of the hanging rod 23 provided on the sorting device main body 9 exceeds the upper edge of the empty can 3a, and the length of the hanging rod itself is set to the height of the guide rail. When the container 16 is lowered to its normal position, its lower end should be under the upper edge of the empty can.

A rotation prevention rod 24 is provided on the slug 18 to prevent its rotation, and a wheel 25 that rolls on a guide plate 26 is provided near its lower end.

The guide plate supports wheels 25 for vertical movement of the guide rail 16.
The guide plate 26 needs a width sufficient to prevent the guide plate 26 from falling off.
The lifting cylinders 19 and 21 are fixed to a support column 27, and the support column 27 is fixed to a plate 28 attached to the truck. 29 is a roller conveyor on the empty can supply side, and 30 is a roller conveyor on the full can discharge side.

Now, when a full can signal is issued from the auto counter, the conveyor 4 and the cart 5 return to their initial positions.

At the same time, the roller conveyor 29 below the waiting empty can 3a is operated and the empty can 3a is pushed out. At this time, the hanging rod 23 hits the empty can 3a, so as the empty can 3a moves, the sorting device 8 is pulled out from the standby area, and when the empty can 3a is adjacent to the full can 3, the sorting device 8 moves to the full can 3. It is located above the gap between the empty cans 3a. Next, when the conveyor control timer times out and the conveyor 4 rotates in the direction of arrow B and the full cans 3 and empty cans 3a begin to be replaced, the sorting device 8
Also transported by the empty can 3a. Therefore, if the chute 6 is shaken in the opposite direction to the direction in which full cans 3 are dispensed just before the sorting device 8 passes directly under the duct 2, the tow 1 will be shaken very little while sliding down the chute 6. The cans are smoothly stored in the empty cans 3a through the cutter groove 10 of the sorting device. (See Figure 3).The reason why the tow 1 swings so little while sliding down the chute 6 is not clear, but because the chute 6 has a gutter-like shape, the tow 1 is stored at the bottom of the chute while sliding. This is thought to be due to the fact that The chute 6 is returned to its normal state hanging from the duct 2 when the sorting device 8 passes directly under the duct 2.

This is because if the chute 6 is left tilted forever, the tow 1 will fly out to the rear of the empty can 3a. The operation of the chute 6 can be automated by constructing a sequence circuit. As above, fill 3 cans.
When the empty can 3a is exchanged with the empty can 3a and a predetermined part of the empty can 3a, for example, the center reaches directly under the duct 2, the fluid pressure cylinder 12
is activated, the cutter 11 protrudes, and the tow 1 in the cutter groove 10 is cut by melting.

When the tow 1 bridged from the cutter 3 to the empty can 3a is cut by the cutter 11 and the full can 3 and the empty can 3a are separated, the full can 3 is delivered by a roller conveyor 30 on the delivery side.

After discharging the full cans, the conveyor 4 and the trolley 5 are operated, and the empty cans 3a, which have begun to store the tows 1, swing back and forth, left and right, and the tows 1 are evenly stored.

After that, when the truck 5 moves toward the D direction, the lifting cylinder 19,
21 is operated and the guide rail 16 is raised, the sorting device 8 slides on the guide rail and returns to the waiting position on the empty can supply side. As described above, according to the present invention, when exchanging the full can 3 and the empty can 3a, the gutter-shaped chute 6 provided at the lower end of the duct 2 is shaken, so that the full can 3 is replaced with the empty can. Not only does the switching speed of the tow to 3a increase, but also the shaking of the tow 1 discharged from the duct 2 is eliminated, and the tow 1 is cut on the cutter groove 10 of the sorting device waiting above the gap between the full can 3 and the empty can 3a. It has become possible to smoothly pass the tow 1 through the cutter groove 10 in an extended state without getting entangled in a dango shape.

Therefore, miscuts caused by the cutter 11 provided in the sorting device can be prevented, and troubles in automation can be solved.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a front view of the sorting device, and FIG. 3 is a side view showing the operating state of the chute 6, in which 1 is a tow and 2 is a duct. , 3 is a full can, 3a is an empty can, 4 is a conveyor, 5 is a trolley, 6 is a chute, 8 is a sorting device, 9 is a main body, 10 is a cutter groove, 11
is a cutter, 16 is a guide rail, 17 is a connecting rod, 18
1 is a slider, 19 and 21 are lifting cylinders, 23 is a vertical rod, 24 is a rotation prevention rod, and 26 is a guide plate.

Claims (1)

[Claims] 1. A synthetic fiber tow is passed through a duct, and the cans placed below are stored by reciprocating back and forth and left and right, and when the cans are full, the full cans are sent forward in the dispensing direction to be treated as empty cans. In a storage method for synthetic fiber tow that is exchanged, the can has a convex cross section when exchanging the can, has a main body extending in a horizontal direction orthogonal to the tow discharging direction, and has a longitudinal center portion thereof. A tow sorting device with a concave cutter groove is placed between full and empty cans, and a gutter-like chute with a semicircular cross section is swingably installed at the bottom end of the duct and its open surface is empty. The tow is swung and tilted in the opposite direction to the can dispensing direction so as to face the can side, and the tow is once slid onto the chute and dropped onto the empty can side, and then the cutter is pushed out from one side of the cutter groove to open the cutter groove. A method for storing synthetic fiber tow, characterized in that the tow is cut across a full can and an empty can through a cutter groove.