JP2745029B2 - Method for aligning cut edges of wrap discharged from wrap forming apparatus to prescribed positions, and apparatus therefor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention automatically cuts a lap formed by a lap forming apparatus before discharging the wrap from the lap forming apparatus and transferring the wrap to the next step. The present invention relates to a method and a device for aligning in a specified position.

The device according to the invention is used in a sliver wrap machine or a ribbon wrap machine equipped with an automatic lap splicing device capable of automatically splicing each fleece end of successive laps.

[Conventional technology]

As shown in FIG. 10, the lap forming apparatus A includes a front drum 1, a back drum 2, and a pair of lap plates 3 arranged at both ends of the drums 1 and 2. When the fleece is wound around the bobbin 4 by the lap forming apparatus A, the calender roller 5 disposed on the upstream side of the back drum 2 stops rotating and the fleece is cut. After a while, the button release lever 6 is operated, and the wrap 7 is released and rolls, thereby being discharged from the wrap forming apparatus A. The wrap 7 discharged from the lap forming apparatus A passes through the lap guide plate 8 and the deck portion 9 of the weighing apparatus, collides with the stopper bar 11 and rebounds, whereby the wrap 7 rolls slightly in the opposite direction to rotate the weighing apparatus. And rests on the deck section 9.

The lap forming device A is provided with a lifter device B for lifting the wrap 7 placed on the deck 9 of the weighing device and transferring the wrap 7 to a conveyor device (not shown).

The wrap forming apparatus is mounted on a sliver wrapping machine or a ribbon wrapping machine. The wrap formed by the lap forming apparatus of the sliver wrapping machine is sent to the ribbon wrapping machine, and the wrapping is rewound by the ribbon wrapping machine. Then, the fleece superimposed on the plurality of layers is wound around a bobbin to be wrapped by a wrap forming apparatus provided in the ribbon wrapping machine again. Then, the wrap formed by the ribbon wrap machine is supplied to a combing machine, and the wrap is rewound to remove short fibers and the like in the fleece.

In each of these steps, it is essential that the rear end of the fleece of the preceding lap and the front end of the fleece of the succeeding lap overlap and continue. Conventionally, this superimposition work was performed manually.However, a suction pipe was hit on the cut end of the succeeding lap, the cut end was peeled off, and the cut end was automatically superimposed on the rear end of the fleece of the preceding lap. Automatic lap splicing devices that can be spliced have been developed.

On the other hand, the wrap is transported to a predetermined position and set by the transfer and rolling. At the time of transfer, the wrap cut is transferred so as not to move, and the movement of the wrap cut by rolling can be roughly calculated from the distance and the wrap diameter. Therefore,
When setting the lap by transferring and rolling the lap discharged from the lap forming apparatus, the lap forming apparatus is configured such that the overlapping length of each fleece end of the successive laps becomes a specified length. The position of the cut edge of the wrap discharged from the tub is determined. Conversely, if the cut end of the lap is not at the prescribed position when the lap is discharged from the lap forming apparatus and stopped, when the fleece ends of the successive laps are overlapped and joined by the automatic lap joining apparatus, the overlap length is set. However, it is not the prescribed length.

If the overlapping length of the fleece ends of the successive laps is too long or too short, various troubles described later occur.

The conventional device for discharging and stopping the wrap 7 from the wrap forming apparatus A includes, as described above, a button release lever 6 for releasing the wrap 7 held by the front drum 1 and the back drum 2. , The stopper bar 11 disposed at the end of the discharge path of the wrap 7, and the deck unit 9 of the weighing device disposed in front of the stopper bar 11.

The button release lever 8 is operated after a lapse of a predetermined time since the fleece is cut, and the timing of the start of operation of the button release lever 6 is such that when the discharged wrap 7 stops, the cut end 7a is cut off. The position is determined by the diameter of the wrap, its hardness, etc. so as to be at the specified position. Since the button release lever 6 is operated by an air cylinder, the operating speed of the button release lever 6 changes due to a change in air pressure, and the collision speed (or collision force) of the wrap 7 against the stopper bar 11 changes. I do. As a result, after the collision with the stopper bar 11, the wrap 7
Bounces and stops on the deck 9 of the weighing device, the position of the cut 7a may deviate from the prescribed position. In addition, the position of the cut end of the lap also varies due to a change in the lap shape due to a change in the lapping of the card in the previous process, a change in the temperature or humidity in the factory, or a stop during the lap formation.

In this way, when the cut 7a of the wrap 7 that has been placed on the deck 9 of the weighing device and stopped has deviated from the specified position,
When the fleece ends of the successive laps are overlapped and continued in the subsequent process, the overlap length does not become the specified length.

As a result, the following troubles occur in the ribbon wrapping machine.

(1) When the cut edge of the succeeding lap is removed by using the automatic lap splicing device and the fleece ends of the successive laps are overlapped and continued, if the cut edge of the subsequent lap is not at the specified position, the automatic lap is cut off. The splicer prevents the trailing lap from being cut off. In this state, when the fleece is overlaid on, for example, six layers, only five or four layers may be overlaid, and the fleece supplied to the combing machine becomes thin.
Unevenness occurs.

(2) Even if the cut edge of the following lap can be peeled off, but the cut edge is not at the specified position, if the overlapping length of the fleece is shorter than the specified length, when the draft is drafted by the roller part, The fleece at the mating part becomes thinner, and the fleece may break off at the part that exits this roller part.

(3) Similarly, if the cut length is not at the specified position and the overlapping length of the fleece is longer than the specified length,
The fleece of the overlapped part becomes thicker, and the fleece cannot be completely gripped between the bottom and top rollers of the roller part. When it comes out and enters between the table and the curl plate, it gets stuck in this area. If the fleece is thick,
The top roller of the roller part is pushed up, stop motion is activated, and the machine stops.

On the other hand, if the length of the overlapping portion of the fleece ends of the successive laps is not the specified length, the following troubles occur in the combing machine.

(1) If the overlap length of the fleece is shorter than the specified length, the fleece breaks during combing and the machine stops.

(2) If the overlap length of the fleece is longer than the specified length, the fleece of the overlapped portion becomes thicker.
At the time of combing, a large force acts on each needle of the cylinder and the top comb, which may break. Further, since the fleece in the overlapped portion is thick, the fleece cannot be gripped by the detaching roller, and adheres to the nipper, and the fleece retreats, and the fleece is cut off in the next combing. As a result, unevenness of the gel is caused, and the quality of the product is reduced.

(3) Even in the case of using an automatic lap splicing device with a combing machine, the cutting edge cannot be removed unless the cutting edge of the subsequent lap is at a prescribed position. For example, in the case of a comber machine of 8 deliveries and 2 cans, The number of fleece that should be four becomes three or two, and a defective fleece with insufficient gel is spun.

In addition, in both the ribbon wrapping machine and the combing machine, the stopping of the machine lowers the operating efficiency, lowers the productivity, and requires a lot of manpower for the restart process, which in turn results in lower running costs. Bulky.

[Problems to be solved by the invention]

The present invention has been made in view of the above-described various problems, and automatically discharges a wrap formed by a wrap forming apparatus to a predetermined position before discharging the wrap from the wrap forming apparatus and transferring the wrap to a next process. It is an object of the present invention to make the overlapping length equal to a specified length when the fleece ends of the wraps that are adjacent to each other are overlapped in the subsequent process.

[Means for Solving the Problems] Means adopted by the present invention to solve the above problems are:
The lap reformer is disposed at the end of the discharge path of the lap discharged from the lap forming apparatus, and has a pair of drive rollers for stopping and placing the rolled lap and rotating the lap in this state. A pair of cut-off detection sensors for detecting the distance to the wrap surface, which are slightly displaced along the circumferential direction of the wrap mounted on the wrap rotating device, and are arranged in non-contact with the wrap; A device for aligning the cut edge of the wrap discharged from the wrap forming device at a predetermined position.

[Function of the invention]

The lap rolled and discharged from the lap forming apparatus by the button-out lever collides with the stopper bar, bounces off and stops, and is placed and supported on a pair of drive rollers constituting the lap rotation apparatus.

In this state, when the pair of drive rollers of the lap rotating device are rotated, the wrap mounted thereon rotates, and the position of the cut edge moves in the circumferential direction.

A pair of cut edge detection sensors for detecting a cut edge of the lap are attached to a specific position in a peripheral portion of the lap placed on the lap rotating device. The pair of cut detection sensors are slightly displaced along the circumferential direction of the lap placed on the lap rotating device, and are arranged in non-contact with the lap. By detecting a difference in distance to the wrap surface by the pair of cut detection sensors, the cut is detected. When the cut edge of the rotating lap is detected by the pair of cut edge detection sensors, the rotation of the pair of drive rollers of the lap rotating device is stopped, and the cut edge of the lap is aligned with the specified position.

For this reason, the wrap is transferred or rolled,
When setting, the cut edge of the wrap will be located at the specified position, so with the automatic lap splicer, the cut edge of the wrap can be peeled off,
When the fleece ends of the successive laps are overlapped, the overlap length becomes a specified length.

〔Example〕

Hereinafter, the present invention will be described in more detail with reference to an example in which the present invention is applied to a sliver wrapping machine. Note that the same parts as those described in the above-mentioned “Prior Art” are denoted by the same reference numerals, and only the part of the present invention will be described, avoiding redundant description.

The wrap forming apparatus A includes a wrap 7 discharged from now.
A lifter device B for lifting the sheet and transferring it to the belt conveyor 12 is also provided. A lap rotating device C is disposed at the center of the lifter device B (the end of the discharge path of the wrap 7 discharged from the wrap forming device A).
Around the lap rotation device C, the lap rotation device C
A carrier 13 is provided for supporting and lifting the wrap 7 placed on the vehicle from below. Lap rotation device C
Is provided with a stopper bar 11 for causing the wrap 7 discharged from the wrap forming apparatus A to collide with the rolling wrap 7.

A rotary actuator 15 is mounted on the lower surface of a horizontal rod 14 projecting horizontally from the upper end of the lap forming device A, and an arm 16 is connected to a vertical rotation shaft 15a (see FIG. 5) in a horizontal state. Cut-out detection sensors 18a and 18b are attached to both sides of a bracket 17 attached to the tip of the arm 16, respectively. In the state shown in FIG. 1, the pair of cut edge detection sensors 18a and 18b is located almost immediately above the wrap 7 placed on the lap rotating device C, and the wrap 7 is moved by the carrier 13 of the lifter device B. Lift the rotary actuator
The arm 16 is rotated in the direction of arrow P by 15 so that a pair of cut detection sensors 18a and 18
Evacuate b.

The pair of cut detection sensors 18a and 18b are slightly displaced along the circumferential direction of the wrap 7 placed on the wrap rotating device C, and are arranged in a non-contact manner with respect to the wrap 7 to reach the surface of the wrap 7. The distance is detected, and the lap rotating device C
This is a sensor for detecting the cut 7a of the wrap 7 placed on the wrap 7. This pair of cut detection sensors 18a, 18
In b, the mounting position is determined corresponding to the position where the cuts 7a of the wrap 7 are aligned, and in this embodiment, the position where the cuts 7a of the wrap 7 are aligned is a portion close to the highest position of the wrap 7. In addition, a pair of cut detection sensors 18a and 18b are arranged almost directly above the wrap 7. Therefore, the mounting position of the pair of cut detection sensors 18a and 18b differs depending on the position where the cut 7a of the wrap 7 is aligned.

The lap rotating device C is mounted on a weighing device D installed at the center of the lifter device B, as shown in FIGS. A pair of frames 19 are attached to both ends of the weighing device D so as to face each other, and a pair of drive rollers 21 are horizontally disposed at a predetermined interval on the upper end portions of the pair of frames 19, Supported rotatably. A gear 23 is attached to one end of a shaft 21a of each drive roller 21, and a gear 25 attached to a drive shaft 24 of a motor M attached to one frame 19, and a gear 23 attached to a shaft 21a of the drive roller 21. But intermediate gear 2
6, and a pair of drive rollers 21 are driven and rotated in the same direction by the rotation of the motor M.

In FIGS. 1 and 5, reference numeral 27 denotes a rotation shaft of the button release lever 6, reference numeral 28 denotes an air cylinder for rotating the rotation shaft 27, and reference numeral 29 denotes a button attached to the tip of the button release lever 6. Indicates a roller that is running.

Then, when the fleece 30 is wound around the bobbin 4 by the lap forming apparatus A and becomes full, the rotation of the calendar roller 5 is stopped, and the front drum 1 and the back drum 2 of the lap forming apparatus A continue to rotate. As a result, the fleece 30 is cut at the portion of the calender roller 5. Immediately after the cutting of the fleece 30, the pair of lap plates 3 open to the side, respectively, and after a predetermined time has passed after the cutting of the fleece 30, the air cylinder 28 is operated, and the button release lever 6 is rotated about the rotation shaft 27. The wrap 7 is rotated and pushed out of the wrap forming apparatus A, and is discharged.

The wrap 7 extruded by the button release lever 6 rolls on the lap guide plate 8, the carrier 13 and a pair of drive rollers 21 of the lap rotation device C to form a stopper bar.
The lap rotating device C collides with the roller 11 and slightly rolls in the opposite direction, and is stopped and supported on the pair of drive rollers 21 of the lap rotating device C (FIG. 5). In this state, lap 7
Is not located at the prescribed position. Further, the button release lever 6 is operated so that the cutout 7a of the wrap 7 discharged from the wrap forming apparatus A and placed on the lap rotating apparatus C is located closer to the front side than the specified position.

In the present invention, it is not necessary to precisely control the timing at which the full wrap 7 is screwed out by the screwing lever 6 and discharged from the lap forming apparatus A, but at least the discharged wrap 7 is rotated at the lap rotation position. When mounted on the device C, the cut 7a is formed by a pair of drive rollers.
It is necessary not to be located between 21.

The weight of the wrap 7 is measured by the weighing device D when a predetermined time has elapsed since the wrap 7 was placed on the wrap rotating device C.

When the measurement of the weight of the wrap 7 is completed, the operation of the rotary actuator 15 causes the arm 16 to pivot in the direction of the arrow P ', and the pair of cut-away detection sensors 18a,
18b is disposed immediately above the wrap 7 placed on the wrap rotating device C. Thereafter, the motor M of the lap rotating device C is activated to rotate the pair of drive rollers 21, whereby the lap 7 rotates in the direction of arrow Q, and the pair of cut detection sensors 18 a, 18 b causes the wrap 7 to reach the lap surface. When the difference in the distance is detected and the cut 7a of the wrap 7 is detected, the motor M of the wrap rotating device C stops (6th motor).
Figure). That is, in the state of FIG. 5, the distance to the wrap surface detected by the pair of cut detection sensors 18a and 18b is the same, but in the state of FIG. 6, the cut of the wrap 7 by one lap detection sensor 18a. It is detected that the distance to the surface of 7a is shorter than the distance to the surface of the general portion of the wrap 7 by the other lap detection sensor 18a,
The arrival of the cut 7a of the wrap 7 is detected. This allows
The cut 7a of the wrap 7 is aligned with the specified position.

Thereafter, the arm 16 is turned in the direction of the arrow P by the operation of the rotary actuator 15, and the pair of cut-off detection sensors 18a, 18b is retracted, and is placed on the lap rotating device C by the carrier 13 of the lifter device B. And lifts the wrap 7 while supporting it below
Figure). In this state, the wrap 7 is linearly moved by a predetermined distance in the direction of the belt conveyor 12, and then lowered,
The wrap 7 is transferred to the belt conveyor 12. Before and after transfer to the belt conveyor 12, the cut edge of the wrap 7
The position of 7a has not changed at all.

8 and 9, the wrap 7 conveyed by the belt conveyor 12 to each unit U of the ribbon wrapping machine is pushed out by an extrusion roller 31 at this portion.
, And rolls on the guide plate 32 to be supported by the pair of support rollers 33. Belt conveyor 12
The rolling of the wrap 7 placed on the
The position of the cut 7a is shifted from the two-dot chain line to the position shown by the solid line in FIG.
This is the specified position when the cut edge 7a is peeled off.

As shown in FIG. 9, the suction pipe 34 constituting the automatic lap splicing device suctions and cuts off the cut end 7a of the succeeding wrap 7 supported by the pair of support rollers 33. When the portion 30a is overlapped with the rear end 30b of the fleece of the preceding lap, the length (L) of the overlapped portion always becomes the specified length. In FIGS. 8 and 9, reference numeral 35 denotes a fleece support plate on which the rear end portion 30b of the fleece of the preceding lap is placed.
Indicates a draft part and a curl plate of the ribbon wrapping machine, respectively.

In the above embodiment, the present invention is applied to a sliver wrapping machine, but can be applied to a ribbon wrapping machine.

〔The invention's effect〕

(1) The wrap discharged from the wrap forming device is placed on the wrap rotating device and rotated, and the difference in the distance to the wrap surface is detected by a pair of cut detection sensors. By stopping the rotating device, the cut end of the wrap is automatically aligned with the specified position. For this reason, since the cut end of the lap placed on the lap rotating device only needs to be located on the near side of the specified position, it is not necessary to accurately control the timing (time) of popping the lap after the fleece is cut. .

(2) By attaching the cut edge detection sensor to the portion corresponding to the position where the cut edge of the lap is aligned, it is possible to automatically align the cut edge of the wrap to an almost arbitrary position.

(3) Since the cut edge of the wrap discharged from the wrap forming apparatus can be accurately aligned with the specified position, in the subsequent process, when the fleece ends of the successive laps are overlapped by the automatic lap splicing apparatus, the subsequent wrap is used. Can be peeled off at the same time, and at the same time, the overlap length of each fleece end of the successive wraps can be set to the specified length.

As described above, the overlap length of each fleece end of the successive wraps is the specified length, and the thickness of the fleece at the overlap portion is constant, so in the ribbon wrap machine, the fleece at the overlap portion is The draft is smoothly drafted by the roller part, and the fleece is not clogged in the curl plate portion, so that the fleece does not break.

In addition, the combing machine is not only effective for the automatic lap splicing device, but also does not apply extra force to the cylinder and the top comb needle during combing, thereby eliminating breakage of the needle and decompression. Since the fleece is securely held by the touching roller, the fleece does not break, and as a result, unevenness of the gel is eliminated, and the quality of the product is improved.

[Brief description of the drawings]

1 to 9 are views for explaining the present invention, and FIG. 1 shows a lap forming apparatus A of a sliver wrap machine equipped with an apparatus according to the present invention and a lifter apparatus B. FIG. 2 is a plan sectional view of the lap rotating device C, FIG. 3 is a side view of a gear train of the lap rotating device C, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a side view showing a state in which the wrap 7 discharged from the wrap forming apparatus A is placed on the lap rotating apparatus C, and FIG. Side view with cut 7a aligned at specified position, 7th
FIG. 8 is a side view showing a state in which the wrap 7 with the cut 7a aligned at a predetermined position is lifted by the carrier 13. FIG. 8 is a diagram in which the wrap 7 is rolled from the belt conveyor 12 and supported by a pair of support rollers 33. FIG. 9 is a cutaway view of the wrap 7 supported by the pair of support rollers 33.
It is a side view of the state where 7a was pulled off. FIG. 10 is a side view of a lap forming apparatus A and a lifter apparatus B for explaining a conventional technique. The description of the reference numerals of the main parts constituting the present invention is as follows. A: lap forming device, B: lifter device C: lap rotating device, D: weighing device 7: lap, 7a: lap cut 18a, 18b: cut detection sensor 21: lap rotating device drive roller

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yoshihiro Wakasugi 8-2 Horai-cho, Shimada-shi, Shizuoka (56) References JP-A-1-236149 (JP, A) JP-B-46-30577 (JP, B1) Japanese Patent Publication No. 48-40550 (JP, B1)

Claims (3)

(57) [Claims] 1. A pair of cut edge detecting means for detecting a distance to the surface of a lap, which is slightly displaced along the circumferential direction of the lap placed on the lap rotating device and is arranged in a non-contact state with the lap. Using a sensor, the wrap discharged from the wrap forming device is placed on a wrap rotating device, and the pair of cut detection sensors detects a difference in the distance to the wrap surface until a cut of the wrap is detected. A method for aligning a cut edge of a wrap discharged from a wrap forming apparatus, wherein the cut edge of the wrap is aligned to a specified position by rotating the wrap by a wrap rotating device. 2. A pair of drive rollers disposed at the end of the discharge path of the wrap discharged from the wrap forming apparatus, for stopping and placing the rolled wrap and rotating the wrap in this state. A wrap rotating device having a pair of wrap rotating devices that are slightly displaced along the circumferential direction of the wrap placed on the wrap rotating device and that are arranged in a non-contact manner with the wrap to detect a distance to the wrap surface. An apparatus for aligning a cut edge of a wrap discharged from a wrap forming apparatus to a predetermined position, comprising: 3. The apparatus according to claim 2, wherein the lap rotating device is mounted on a weighing device.