JPH07133513A - Lapping roller driving device for comber - Google Patents

Abstract

PURPOSE:To instantly remove slack produced during a period in which a new lap released from a full lap is sent to a feed roller when the lap of a comber is pieced. CONSTITUTION:A new lap L1 is released from a full bobbin 100 on a lap roller 41 and is hung along a fleece guide 47. A comber is restarted in the hung state of the lap and the lap roller 41 is revolved in the direction to send the lap. At a timing when the tip of the new lap L1 is nipped by a feed roller 6, the lap roller 41 is rotated in the lap winding direction for a fixed time. Consequently, slack S of the new lap L1 produced during a period in which the new lap L1 reaches the feed roller 6 is instantly removed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention wraps an old wrap connected to a combing unit and a new wrap peeled from a full wrap supplied and placed on a wrap roller of a comb by pressure-contact polymerization with a feed roller. More specifically, the present invention relates to a drive device for a lap roller that removes the slack of a new wrap peeled from a full lap when the lap is connected.

[0002]

2. Description of the Related Art In the case of combing, for example, Japanese Patent Publication No. 5-3
When the lap on the lap roller is consumed and becomes a small ball wrap by the automatic wrapping exchange and output device of No. 6330, the small ball wrap is removed from the lap roller, and the full wrap is placed on the lap roller. Peel off the full wrap with air and hang it down along the fleece guide at the wrap feeding part. Then, when the new lap is prepared along the fleece guide in this way, the comb machine stand is activated, and the new lap is fed by the lap roller toward the feed roller in front of the fleece guide,
With the feed roller, a new full wrap is overlapped with an old wrap cut upstream of the feed roller to automatically perform lap joining.

[0003]

By the way, the new wrap peeled off from the full wrap is in a free end state when its tip is not overlapped with the old wrap when it is prepared along the fleece guide. Therefore, although the feed roller only moves toward the feed roller,
Since it is in the free end state, no tension is applied to the new wrap pulled out from the full wrap, so the new wrap does not peel off smoothly from the outer circumference of the full wrap, and a large slack S occurs as shown in FIG. . When the new lap L1 is lap-jointed in this way, wrinkling occurs on the cushion plate, uneven feeding by the feed roller occurs, combing is not performed well, and a cotton lump is mixed in the fleece, It also causes the sliver to run out. As a means for removing the slack of a new full wrap at the time of such a lap splicing, as in Japanese Utility Model Publication No. 1-21981, until the new wrap reaches the feed roller by continuing the lap,
There is one that feeds the lap roller and rotates it, and then stops the rotation of the lap roller for a certain period of time.
The slack is removed only by feeding the feed roller, and it takes time to completely remove the slack, and the wrinkle of the wrap as described above occurs during the slack, which is not preferable. An object of the present invention is to provide a device that can instantly remove such slack.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention starts a machine base and separates it from an old wrap connected to a combing unit of a comber and a full wrap supplied and placed on a lap roller. In the comber in which the new lap is pressure-bonded and superposed by a feed roller to lap the lap, the lap roller can be switched between rotation in the wrap feeding direction and rotation in the wrap winding direction during machine operation. This wrap roller is linked to the system and is rotated in the wrap feed direction until the new wrap tip peeled off from the full wrap at the time of lap joining reaches the feed roller, and the wrap roll is wound for a predetermined time after the new wrap tip reaches the feed roller. A control device for controlling the lap roller drive system so as to rotate in the take direction is provided.

[0005]

According to this structure, when the lap is spliced, the full lap after restarting the machine base is rotated in the feeding direction, and the new wrap has its free end until reaching the feed roller. It does not come off smoothly from the outer circumference of the full wrap and becomes slack, but when the tip reaches the feed roller,
The wrap roller drive system is switched in response to a command from the control device, and the lap roller is rotated in the reverse direction for a certain period of time. Therefore, the slack new wrap is pulled and the slack is positively removed in a very short time.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, 1 is a wrap former, 2 is a wrap winding device, 3 is a conveyor for conveying a full wrap 100 formed by the wrap former 1 to the rear of a comber 4, and 5 is a pair of wrap winding drums. Reference numeral 16 is a guide plate when the full wrap 100 on the lap winding drum 5 is discharged onto the conveyor 4. The comber 4 has a plurality of combing units 4A at intervals L along the length of the machine base. As shown in FIG. 3, the combing unit 4A includes a cushion plate 5, a feed roller 6, a nipper knife 7, a fleece guide 47, a detaching roller 9, and a combing cylinder (not shown), and corresponds to each combing unit 4A. A pair of front and rear wrap rollers 41 are rotatably supported by the frame. The front and rear wrap rollers 41 are continuous in the front-rear direction, respectively, and each wrap roller 41, as shown in FIG. 3, has a combing unit via a lap roller drive system 43 including a differential gear mechanism 42. The detaching rollers and the like of 4A are respectively connected to the main motor 45 via the combing unit drive system 44.

The main input shaft 43A of the differential gear mechanism 42 is connected to the main motor 45, and the auxiliary input shaft 43B is connected to the auxiliary motor 46. The combined rotation of the input shafts 43A and 43B is the output shaft 43C. It is supposed to be output from. The auxiliary motor 46 is not driven during normal combing, and the combing unit 4A and the lap roller 41 are normally driven to rotate at a predetermined rotation speed by the power of the main motor 45. During normal combing, the lap sheet U is supplied to the combing unit 4A by rotating in the wrap feeding direction. The auxiliary motor 46 is driven together with the main motor 45 for a certain period of time after the lap connection, and the auxiliary motor 46 is operated by the main motor 4
The wrap feeding rotation of the lap roller 41 by 5 is canceled, and the wrap roller 41 is operated in the reverse rotation direction and rotation speed, and the lap roller 41 is rotationally driven in the lap winding direction at a constant rotation speed.

The control device 50 of the comber 4 controls the auxiliary motor 46 at the time of restarting at the time of lap joining, in addition to various controls during normal combing. The control device 50 has two timers 51 and 52 built-in, and controls the lap roller 41 from the control device 60 of the lap conveying / feeding device 30 described later.
The air nozzle 39 is attached to the tip (this position is predetermined) of the new lap L1 of the full lap 100 that has been placed on the top.
When a signal that air is blown from is transmitted from this, at the timing when the lap sheet droops along the fleece guide 47 due to this blowing, first, a restart command is output only to the main motor 45, and the time set in the timer 51 elapses. At this time, the auxiliary motor 46 is programmed to rotate for the time set in the timer 52 and then stopped.

The time set in the timer 51 is such that after restarting, the leading end of the new wrap L1 hanging along the fleece guide 47 is nipped between the feed roller 6 and the cushion plate 5 by the feeding rotation of the lap roller 41. It is the time required until the end of the new lap L1, the distance between the feed rollers 6 and the feed amount of the lap roller 41. The time set in the timer 52 is the fixed reverse rotation speed, which is defined by the slack that occurs when the leading end of the new lap L1 is nipped between the feed roller 6 and the cushion plate 5 by the feed rotation of the lap roller 41. It is the rotation time required for the removal by the test spinning. In addition, instead of the timer 51, the number of nips from the restart is counted, and the new lap L is calculated according to the number of nips.
You may judge that the front-end of 1 reached the feed roller 6.

The lap conveying / feeding device 30 for feeding the full wrap 100 to the comber 4 and feeding the lap is disclosed in Japanese Patent Publication No.
Since it belongs to -36330, it will be briefly explained. As shown in FIGS. 2 and 3, the center hole 13A of the lap bobbin 13 is axially formed in the movable frame 31 that travels above the conveyor 3 that conveys the full wrap 100 discharged from the lap former 1 and above the comber 4. A full-wrap suspension mechanism 33 having a pair of openable and closable hooks 32 sandwiched from both sides by the number of the combing units 4A, and a rotary roller 34 that rotatably supports the center hole 13A of the lap bobbin 13 from both axial sides. A pair of openable and closable support arms 35 and a small ball wrap 101 rotatably supported by the support arms 35.
A small bead wrap suspension mechanism 38 having as many small bead wrap discharge units 37 as the number of the combing units 4A, which is constituted by a rotating roller 36 that is pressed against the outer periphery and is positively rotated by a motor, is provided so as to be vertically movable. The small ball wrap discharge unit 37 is provided with an air nozzle 39 for peeling off the new lap L1 of the full lap 100 placed on the lap roller 41 of the comber 4.

Lap winding device 2 of ribbon wrap machine 1
When the full wrap 100 is obtained by winding the wrap with the wrap, the wrap is cut, the cut end is positioned at a predetermined position on the outer circumference of the full wrap 100, and the wrap is discharged to the conveyor 3 to comb the six full wraps 100. Position it at the full lap preparation position, directly behind the unit 4A. Then, the full-wrap suspending mechanism 33 of the full-lap transport outlet device 30 descends, and the hooks 32 hold and lift the center holes 13A of the lap bobbins 13 of the six full-lap 100. Then, in the suspended state, the comb 4 moves upward (FIG. 2).

Above the comber 4, the small ball wrap suspension mechanism 38 first descends to support the small ball wraps 101 on the lap rollers 41 of the comber 4 in the stopped state, respectively.
By rotatably sandwiching and lifting, the rotating roller 36 is brought into pressure contact with the outer circumference of the small ball wrap 101. Then, the movable body 31 is moved slightly forward, and the small ball wrap suspension mechanism 38 is moved.
Is moved to the combing unit 4A by driving the rotating roller 36 at that position.
The wrap sheet (old wrap) L2 from is wound up and cut. Then, put the full wrap 100 on the wrap roller 4
1, and the full wrap 100 is released from the hook 32 (FIG. 3).

Subsequently, air is ejected from the air nozzle 39 toward the tip of the new wrap L1. The new wrap L1 is peeled off from the outer circumference of the wrap and hangs along the fleece guide 47. At this timing, the control device 50 activates only the main motor 45. Then, the lap roller 41 rotates in the delivery direction, and each operating member of the combing unit 4A also operates. As a result, the old lap L2 is sent out from the feed roller 6 toward the detaching roller 9, and the new lap L1 also descends along the fleece guide 47 toward the feed roller 6. At this time,
Since the tip of the new wrap L1 is a free end and no tension acts at all, it does not peel off smoothly from the outer circumference of the full wrap 100, and a slack S occurs (FIG. 4).

Then, at the timing when the tip of the new lap L1 is nipped between the feed roller 6 and the cushion plate 5 by overlapping with the old lap L2, the timer 51 times up and the main motor 45 is kept operating. The reverse rotation command of the lap roller 41 is output to the auxiliary motor 46 (FIG. 4). As a result, the operating gear mechanism 42 combines the rotation of the main motor 45 and the rotation of the auxiliary motor 46 to rotate the lap roller 41 at a predetermined speed in the lap winding direction. By this rotation of the wrap winding direction, the new lap L
1 is pulled and its slack S is instantly removed (Fig. 4).
). Therefore, the wrinkle of the lap due to the slack S is eliminated, and the combing failure or the like is eliminated. Then, at the timing when the slack is removed, the timer 52 times up, whereby the auxiliary motor 46 is stopped and the lap roller 41 returns to the normal delivery rotation.

[0015]

As described above, according to the present invention, it is possible to instantly remove the slack of the new lap peeled from the full lap at the time of lap joining, which is caused only by feeding the lap roller, and after joining with the preceding old lap. It is possible to prevent the occurrence of wrinkles due to this slack, and to prevent combing failure and sliver breakage due to combing failure.

[Brief description of drawings]

FIG. 1 is a plan view of a lap transport splicing system between a ribbon wrap machine and a comber.

FIG. 2 is an explanatory diagram of a lap transport port delivery / splicing device.

FIG. 3 is an explanatory diagram of a lap transport outlet device and a lap roller drive system of a comber.

FIG. 4 is an operation explanatory view.

[Explanation of symbols]

4 combers, 41 lap rollers, 42 differential gear mechanism, 43 lap roller drive system, 46 auxiliary motor, 50 control device, 51 timer, 52 timer, 100 full lap, L1 new lap, L2 old lap

Claims (1)

[Claims] 1. An old wrap connected to a combing unit of a comber and a new wrap peeled from a full wrap supplied and placed on a lap roller are pressure contact-polymerized by a feed roller to join the laps by activating the machine base. In the comber, the wrap roller is linked to a lap roller drive system that can switch between lap feeding direction rotation and lap winding direction rotation during machine operation. A control device that controls the lap roller drive system so that the wrap feed direction is rotated until the peeled new wrap tip reaches the feed roller, and the lap winding direction is rotated for a predetermined time after the new wrap tip reaches the feed roller. A wrap roller driving device for a comber, comprising: