JPH08260266A - Roving frame provided with transferring apparatus being intensively collected in machine for transferring full bobbin and empty tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fly frame equipped with a transporter for completely removing a remainder roving from an empty roving tube and smoothly performing exchange between a bobbin filled with a roving and the empty roving tube. SOLUTION: By installing trolley tracks 4, 5 on which a suspension trolley column can run through a flyer zone 2 of a fly frame 1, by combining the trolley tracks with a ringed suspension trolley track 8 through a binding track 6 and a separation 7 and by installing a replacement equipment 11 in the region of the trolley track 8, a bobbin filled with a roving and an empty roving tube can be replaced between the trolley tracks 8 and 12. A cleaner 13 operating when detecting a remainder roving remaining in the tube is placed in the region of the trolley track 8. The cleaner 13 is placed besides the above position in the fly frame 1 in an integrated state or may be placed in a transfer track for the empty roving tube leaving for the exchange/retention position of an empty roving tube, located at the nearest position where the empty roving tube is inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roving machine provided with a transfer device integrated in the machine for transferring full bobbins and empty tubes in the roving machine area.

[0002]

2. Description of the Related Art Since roving that is almost lost in a ring spinning machine causes thread breakage, efforts are made to replace an empty roving bobbin with a full roving bobbin before the roving bobbin is completely emptied. Has been done. As a result, the roving was running out, and it was recognized that it was emptied next time, and the tube taken out from the ring spinning machine was not emptied at all, and a certain amount of roving remained in some degree. The phenomenon occurs. These residual yarns consist of a few windings or layers of roving. These residual rovings must be removed before inserting the empty tube into the roving spindle.

Devices for enabling the automatic removal of such residual roving from an empty tube are known in various ways. International patent classification B65H 73/00 concerns such a device. A device of this kind is already known for removing residual roving from a roving tube in a transfer system for a roving bobbin between a ring spinning machine and a roving machine (EP 0 454 897). (See the official gazette). In this device, a replacement device is provided in the transfer path of the full bobbin moved by the suspension trolley and the empty tube, and by this replacement device, each group of empty tubes is taken out from the suspension trolley, It is replaced with a disk with a peg and is transferred to a cleaning device by this disk with a peg. From this cleaning device, the empty tube from which the roving has been removed is placed on a disk with pegs and supplied to the replacing device, which replaces the empty tube into a group again and replaces it with the suspension trolley.

Such a device is an automatic device, and in order to integrate this device into a transfer system, it must be planned and configured according to the device, and its control unit is a transfer system. It is equipped with an interface for controlling. The use of suspended trolleys is limited to individually movable suspended trolley rows, since the suspended trolley row must be stopped when replacing empty tubes. In addition, this suspension trolley row supplies empty tubes for each group-without regard to whether these empty tubes contain residual roving-is fed to the cleaning device, thus reducing the number of unnecessary operations. Increase is triggered.

[0005]

SUMMARY OF THE INVENTION The problem underlying the present invention is to clean residual roving from empty tubes without costing the operating plan, the structural parts and the control technology. To get it.

[0006]

The above problems are solved according to the invention by the fact that the transfer device of the roving machine is provided with a device for removing the residual roving from the empty tube. In this case, the invention starts from a roving machine, which is equipped with a transfer device for transferring the full bobbin and the empty tube, which is integrated in the machine. Such transfer devices consist, for example, of suspended trolley rows extending from the area of the flyer of the roving frame to the exchange area, in which the exchange of full bobbins and empty tubes in these suspended trolley rows. Is performed. According to the invention, only the device belonging to the transfer device for removing the residual roving from the roving bobbin which is running out of yarn is fed to this transfer device of each roving machine.

This device is an automatic device provided as an integral part of this transfer device of the roving frame. Moreover, this device is centralized in the roving frame as a structure group of the roving frame, and is carried in the frame of the roving frame, and the control of the roving frame is performed by the control mechanism of the roving frame. It has at least one interface for controlling.

The device for removing the residual roving is provided with an empty tube from the empty tube insertion position of the transfer device to the replacement holding position for the empty tube closest to this insertion position. If provided in the transfer path, the advantage is that only the cleaned empty tubes are fed to the exchange area of the roving machine and the tubes to be exchanged do not have to be additionally moved to feed the cleaning device. Is obtained.

A particularly economical mode of operation of the device for removing residual roving is reached if the device is configured to operate only on empty tubes which have been verified for the presence of residual roving. This is achieved by a sensing device which senses a supplied empty tube in which there is no residual roving, which sensing device is operatively associated with the device so that the device will not operate on such an empty tube. But,
This arrangement is as follows: the sensing device depends only on the detected amount of residual roving for an optimum cleaning process, i.e. the time during which the device is operating is devoted to this cleaning. If not, the cleaning process is performed so as not to be rushed.

The device for removing the residual roving cannot completely remove the residual roving in the individual empty tubes and / or the device for removing the residual roving in this way is an integral part of the process step. Due to the limited time available at the point, it may be said that such a tube is unobstructed without steps. This possibility is due to a sensing device that does not, or in any case, senses an empty tube that is not completely free of residual roving at the time available.
A magazine that holds an empty tube from which residual roving has been removed,
And a device for discharging the tube from which the residual roving has not been completely removed at the position and removing the empty roving from which the residual roving has been removed from the magazine to supplement the empty tube.

The device for removing residual roving yarns in this way can be constructed in any known manner. This device is configured to suck residual roving, rewind the empty tube, brush the brush, strip off residual roving from the empty tube, and remove the residual roving from the tube without damaging the tube. The roving is configured to be removed.

The sensing device can likewise be constructed in any known structural manner. These sensing devices may be optoelectronic sensing devices or video monitoring devices that cooperate with a reflective foil on the tube. The scanning region of the sensing device is advantageously located in the region in which the winding start of the winding takes place, i.e. in the case of a tube with velcro tape, immediately adjacent to this velcro tape.

Hereinafter, the present invention will be described in detail with reference to the embodiments of the invention illustrated in the accompanying drawings.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As can be seen from FIG. 1, two suspension trolley paths 4 and 5 run through a flyer area 2 of a roving machine 1 to which a Kensno 3 belongs, and these suspension trolley paths 4 and 5 run. A suspension trolley row (not shown in FIGS. 1 to 3) can travel in the trolley road. By this suspension trolley row, the full bobbin and the empty tube can be exchanged in the roving frame. The structure and operating mode of such a bobbin changing device are as follows.
German Patent Publication No. 4 of particular relevance to the present invention
It is known from JP 2 29 296. The suspension trolley paths 4 and 5 are connected to an annular suspension trolley path 8 via a connection path 6 and a branch portion 7, and the return sides 9 and 10 of this annular suspension trolley path are in front of the roving frame 1. And extend in parallel.

In the region of this annular suspension trolley path 8 there is provided a replacement device 11, which replaces a full bobbin from a suspension trolley row rotating in the annular suspension trolley path to another suspension bobbin. The empty tubes are replaced in the suspended trolley row guided in the suspension trolley path 12 and from the suspended trolley row of this suspended trolley path into the suspended trolley row of the annular suspended trolley path. The other suspension trolley path 12 rotates in a processing area or storage area (not shown). This processing area is composed of a ring spinning machine, and a full bobbin is processed in a creel of the ring spinning machine and returned to the roving frame 1 as an empty tube. The storage area is inside the suspension trolley road portion arrangement, and in this suspension trolley road portion arrangement, the suspension trolley row with full bobbins or the suspension trolley row with empty tubes is It has been suspended until processing.

The replacement device 1 is returned by the suspension trolley path 12.
In order to remove from the empty tube the residual roving thread still present in the empty tube replaced on the annular suspension trolley path 8 by 1, the device 13 for removing the residual roving thread-shortly below A cleaning device-is provided. FIG.
In the embodiment shown in FIG. 2, this cleaning device 13 is provided in the path of the annular suspension trolley path 8 apart from the roving frame 1. It is assumed that the suspension trolley row circulates in the annular suspension trolley path in the direction opposite to the movement direction of the hands of the timepiece during the replacement process. Therefore, the cleaning device 13 is located immediately behind the replacing device 11 in the circulating direction of the suspension trolley row, and the annular suspension trolley path 8 is provided.
It is stored in.

At this starting position, two suspension trolley rows, in which empty tubes are inserted in the annular suspension trolley path 8, ie suspensions in the flyer area of the roving frame 1 for the replacement process. There is a suspended trolley row that runs into the suspended trolley paths 4, 5. German Patent Publication No. 42 29 2
After the replacement process is completed in the manner described in detail in the '96 publication, the suspension trolley row with the full bobbin inserted therein again returns into the annular suspension trolley path 8.

For the replacement process, the suspension trolley train circulates in the annular suspension trolley path 8 in the direction opposite to the direction of movement of the hands of the timepiece, the replacing device 11 then comprising one or two full bobbins, respectively. From a suspended trolley row in the suspended trolley path 8 into a suspended trolley row in the suspended trolley path 12, and one or two empty tubes from the suspended trolley row in the suspended trolley path 12 to an annular suspended trolley path. Replace with the suspended trolley row in 8. After the replacement of the suspension trolley line in the annular suspension trolley path 8 is finished, these empty tubes pass by the cleaning device 13,
At that time, the remaining residual roving yarn is removed, and only the empty tube from which the residual roving yarn is removed exists in the suspension trolley row in the annular suspension trolley path 8. It goes without saying that the cleaning device 13 does not operate when the suspension trolley row having the full bobbin inserted therein passes by it.

Although the cleaning device 13 is provided farther from the roving frame 1, it belongs to the roving frame by being installed in the annular suspension trolley passage 8 of the roving frame, and only the empty tube in the roving frame is provided. To clean. The cleaning device 13 is fully automated with regard to the mode of self-sufficiency, ie its structure, its energy supply, etc., and relies only on the circulation of empty tubes in the annular suspension trolley 8 for the control of its working mode. . Therefore, this cleaning device is
Can be easily provided as an option belonging to the company, and can be added to the roving frame 1 later.

In the embodiment according to FIG. 2, the cleaning device 13 is integrated in the roving frame 1. That is, the cleaning device is structurally and functionally part of the roving machine. The circular suspension trolley path 8 is provided for this purpose with a machine 14 of the roving frame.
You are guided through. In this case, the working mode of the cleaning device 13 is of course controlled indirectly from the roving frame 1 according to the movement of the suspension trolley row carrying the empty tube in the annular suspension trolley path 8. In this case, the patrol of the suspension trolley row in the annular suspension trolley path 8 takes place in the direction of movement of the hands of the timepiece.

In the embodiment according to FIG. 3, the roving machine 1 is equipped with a bobbin exchanging device, in which the suspension trolley rows 4 and 5 are connected to an annular suspension trolley path. It is not necessary to have one, and one station 15 and 1 respectively
It has been extended within 6. An endless chain 18 is guided in a rail 17 that can be moved up and down below the parking passages 15 and 16. This endless chain pulls a full bobbin from a suspension trolley row standing in the parking passage. Alternatively, hang empty tubes on these suspended trolley rows. The endless chain 18 leads to the replacing device 11, which inserts the full bobbin and the empty tube into the suspension trolley path 12 as described above, and the suspension trolley path 12
Carry out replacement work.

In this case, the cleaning device 13 is likewise the roving machine 1.
Is formed as a part of and is configured to move through this cleaning device 13. This endless chain 18 likewise circulates in the direction of movement of the hands of the timepiece. In FIG. 4, reference numeral 9 indicates a rail of the annular suspension trolley path 8 or rails of the parking paths 15 and 16. A suspension trolley row 19 can travel on this rail by a pair of rollers 20. This run is performed with the friction wheel pair 21,
The friction wheel pair is driven by the electric motor 22. The suspension hangers 23 are used to hang the remaining roving 2 on the suspension trolley row 19.
The empty tube 24 in which 5 is present is suspended. This empty tube 24 is rotated by a roller pair 27 driven by an electric motor 26 in this working position.

A suction nozzle 28 is provided in the moving path of the empty tube 24 so as to extend over the entire winding height of the tube. This suction nozzle is connected via a rotating sieve drum 29 to an intake source in the form of a venturator 31 driven by an electric motor 30. However, it is also possible to provide a suction nozzle, which is thin and thus has a higher suction action, behind the suction position. In particular, it is also possible to use more than one suction device, e.g. two suction devices in parallel, depending on the cycle time used, so that each two tubes can be subjected to suction action simultaneously. It is possible. The rotary drive mechanism of the sieve drum 29 is not shown in order to make the drawing easier to see. Below the sieve drum 29, a collection container 32 for sucked roving yarn is provided.

Further, an optoelectric sensing device 33 is provided on the moving path of the empty tube 24. The sensing device scans for the presence of residual roving 25 in an empty tube 24 passing by. The sensing device 33 is oriented in the direction of the velcro tape 34 on the tube, and includes a velcro tape demonstrating that there is no residual roving and a velcro tape demonstrating that there is residual roving. For the purpose of distinction, it is arranged to identify the difference in color or the difference in brightness of these Velcro tapes. However, the sensing device 33 can also be configured to identify the difference between a reflective foil that indicates the absence of residual roving and a reflective foil that indicates the presence of residual roving. Is.

The sensing device 33 is coupled to the control mechanism 36. This control mechanism includes an electric motor 22 of a friction wheel pair 21,
Electric motor 26 of roller pair 27 and bench emulator 3
1 to control the moving motor 30. FIG. 5 shows a position of the movement path of the empty tube in the cleaning device 13, and the tube exchange device 37 is provided at this position. This position is the same as the position where the suction device is provided. However, it is advantageous if both working positions are offset along the path of movement of the tube. This is because, even if there are many suction positions, generally only one exchange position is provided. The tube exchanging device 37 is composed of a two-arm swivel arm 39 which is swivelable by an electric motor 38 at a central position in the longitudinal direction about the vertical axis by 180 °.
At both ends of the swivel arm are provided peg style tube grippers 40 that allow entry into the tubular tube from below. Further, the revolving arm 39 can be moved up and down by another electric motor 41 engaging with the rack 43 by the pinion 42.

An electric motor 45 is attached to the turning arm 39.
To which an empty tube magazine 44 in the form of a rotatable disc 46 belongs. An empty tube 24 having no residual roving is held by a suspension holder 23 on the disc. Associated with the tube changer 37-which may be the same as the sensing device 33 described above in connection with the cleaning device 13-is a sensing device. This sensing device is likewise-may be the control mechanism 36 already described above-is associated with the control mechanism. This control mechanism 36 is further coupled to electric motors 38, 41 and 45 in this embodiment.

When the suspension trolley row 19 passes by the sensing device 33 in a series of replacement work by the replacing device 11 for an empty tube of the full bobbin, this sensing device remains on the empty tube. Scan the thread. When the sensing device recognizes the residual roving, the sensing device controls the electric motor 22 for driving the friction wheel pair 21 via the control mechanism 34 so that the empty tube exists in front of the suction nozzle 28. , The suspension trolley row is stopped, or the sensing device prevents this suspension trolley row from continuing to run. At the same time, the electric motor 26 of the roller pair 27 and the electric motor 30 of the venturator 31 are connected so that the residual roving thread remaining in the working position is sucked from one or many empty tubes that are rolling in the working position. To be

The sucked residual roving yarn falls into the collecting container 32 from the area of the sieve drum covered by the intake air. If multiple suction positions 37 are provided, this work step is carried out in parallel at all suction positions. The cleaning device 13 acts on the empty tube for a predetermined time sufficient to remove the residual roving that normally remains. However, in a manner not shown in detail, for example an opto-electrical sensing device is provided in the suction nozzle 28 or in the line connected to this suction nozzle and no roving is present due to the response of this sensing device. In this case, the suction action is no longer performed, so that it is also possible to arrange for the suction action to end. After the sensing device 33 has passed a predetermined time,
Upon determining that the empty tube still has residual roving, the sensing device removes tubing that is not completely cleaned, either automatically or within a predetermined cycle time, from the empty tube magazine 44. Inducing work with a tube that has been completely removed. For this purpose, the control mechanism 36 connects the electric motor 41 so that the swivel arm 39 moves up and down and thus the empty tube in which the residual roving is present is removed from the suspension trolley row 19. ,
The empty tube from which the residual roving is not present from the magazine 44 is unhooked. When the electric motor 38 is connected, the revolving arm 39 rotates half a turn to cast the gripped tube. By reconnecting the electric motor 41, the swivel arm is raised and lowered again, and the empty tube is hooked in the suspension trolley row 19 or the magazine 44.

The electric motor 45 is subsequently connected, whereby the disc 46 is rotated further by one pitch, which brings the empty tube, free of new residual roving, into the exchange position. The empty tube containing the residual roving is taken out from the empty tube magazine 44 by hand, cleaned, and hooked in the empty tube magazine again.

[0030]

By the apparatus according to the present invention, the removal of the residual roving from the empty tube is completed, and the cleaning of the residual roving from the empty tube and the bobbin changing step are performed in harmony with each other. The work process can be achieved without any trouble.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a work field in a roving frame provided with a cleaning device arranged according to the present invention.

FIG. 2 is a schematic plan view of a work field in a roving machine provided with a cleaning device arranged according to the present invention.

FIG. 3 is a schematic plan view of a work field in a roving frame provided with a cleaning device arranged according to the present invention.

FIG. 4 is a side view of the cleaning device.

FIG. 5 is a side view of the empty tube exchange device.

[Explanation of symbols]

 1 Rover spinning machine 2 Flyer area 3 Cans work field 4,5 Suspended trolley road 6 Coupling road 7 Branching part 8 Annular suspension trolley road 9,10 Return side of annular suspended trolley road 11 Change device 12 Suspended trolley road 13 Cleaning device 14 Machine stand 15,16 Parking road 17 Rail 18 Chain 19 Suspended trolley row 20 Roller pair 21 Friction wheel 22, 26, 30, 38, 41, 45 Electric motor 23 Suspended holder 24 Empty tube 25 Residual coarse thread 27 Roller pair 28 Suction nozzle 29 Sieve drum 31 Ventulator 32 Collection container 33 Sensing device 34 Velcro tape 35 Reflective foil 36 Control mechanism 37 Tube replacement device 39 Swivel axis 40 Tube gripper 42 Pinion 43 Rack 4 44 Empty tube magazine 46 Disk

Claims (6)

[Claims] 1. A roving machine equipped with a transfer device integrated in the machine for transferring full bobbins and empty tubes in the area of the roving frame, wherein the transfer device (1) of the roving frame (1)
5; 33) provided with a device (13) for removing the residual roving (25) from the empty tube (24). 2. The roving machine according to claim 1, characterized in that a device (13) for removing the residual roving (25) is added to the roving machine (1). 3. The roving machine according to claim 1, characterized in that a device (13) for removing the residual roving (25) is centrally provided in the roving machine (1). 4. The empty tube (2) of the transfer device (15; 33) is equipped with a device (13) for removing the residual roving (25).
4. The empty tube transfer path from the insertion position of 4) to the replacement holding position for the empty tube existing closest to the insertion position. The roving machine described in. 5. A device (13) for removing the residual roving yarn (25) comprises a sensor (33) for sensing the residual roving yarn in an empty tube (24), which sensor is used to remove the residual roving yarn. A roving machine according to claim 1, characterized in that it is adapted to operate only on empty tubes which have been verified for the presence of yarn. 6. A device (13) for removing residual roving (25) comprises: an empty tube (2) in which residual roving has not been completely removed.
4) Sensing device (33) for sensing, a magazine (44) with an empty tube (24) from which residual roving has been removed, and an empty tube from which residual roving has not been completely removed (2
Rover according to claim 1, characterized in that it comprises a device (71, 73) for replacing 4) with an empty tube from which residual roving from the magazine (44) has been removed.