FR2527191A1 - METHOD AND DEVICE FOR THE PREPARATION OF CANVAS - Google Patents

Abstract

THE INVENTION RELATES TO A DEVICE FOR THE PREPARATION OF CANS TAKEN FROM A FEEDING STATION TO A PREPARATION STATION PRECEDING A REEL. ACCORDING TO THE INVENTION, BETWEEN THE PREPARATION STATION V AND THE WINDING MACHINE IS A SEPARATION STATION T ACTUATED BY A METERING AND CONTROL UNIT 9 WITH A CHANGE 10 FOR THE RETURN OF CANS FROM THE PREPARATION STATION, WHICH HAS A INLET LINE 11 AND BYPASSES 12, 13, 14 FOR THE WINDING MACHINE, A DISCHARGE CONTAINER 6 AND THE FEEDING STATION Z, TO RETURN THE CANS THAT HAVE NOT BEEN PREPARED. THE INVENTION APPLIES IN PARTICULAR TO THE TEXTILE INDUSTRY.

Description

The present invention relates to a process for the preparation of

  cans, which are transported from one

  feeding station at a pre-treatment station

  yielding a coiler, or each quill, by searching for the bobbin thread and transmitting it to a

  is prepared, and finally is taken to the bobbin

  and a device for carrying out the method. It is known to prepare the cans, which will be wound in a winder operating fully automatically, in a preparation station Such bobineusos are usually provided with a tank in the form of a can container or a can shop, yes prepared cans are stored until transmission at a winding point of the winder usually equipped with several winding points By the preparation of the can usually means various operations In this case, it is the search for the wire of the bobbin, its restraint and its transmission to a claw of the thread As soon as the bobbin thread is held by the claw and this is established by the monitoring of the thread which is attached to it, the bobbin is brought, by a pivoting rocker and the bobbin thread by claw canter store If there is no bobbin thread in the claw, the scale is moved so that the cannett It is rejected, for example in a container. The discarded cans are then either prepared by hand and brought into the can store or returned to the preparation station, or the preparation of the can, that is to say wire search and transmission

  from it to the claw, is repeated.

  It is easy to conceive that for a greater

  the automatic preparation of the can, it is not enough simply to reject the unprepared can at the preparation station, but to bring it back to the preparation station. In the supply station arrive the new cans and cans rejected and they are brought from the feeding station to the station

  of preparation, where the preparation of the

  The return of discarded cans to the feeding station is intended to ensure that a large number of cans that have not been prepared by a first pass through this preparation station can be prepared at a time. second and possibly a third pass It is desirable to bring again the unprepared cans to the preparation station, because thus the percentage of cans prepared can be

significantly increased.

  It is true that we must not neglect the fact that even small portions of cans may not be prepared even after several passes through the preparation station, because there is a defect in the winding The result is that there is always more and more cans in the route from the feeding station to the preparation and return station of this station. the filling station, which the preparation station can no longer prepare and which must therefore be rejected, so as to guarantee an advance

  sufficient to the store However, such a state, that is,

  that is to say, the increase of the portion which can no longer be prepared, can usually be established only comparatively late, therefore interruptions of

  The operation of the winder can not be avoided.

  It is true that cans in the course could be removed by hand, however it requires monitoring by staff Otherwise, it is also thinkable to monitor the course of unprepared cans by corresponding facilities to reject them

  for example after the second course, however a

  Particularly expensive treatment would be necessary in this case. It is therefore an object of the present invention to design a method of the above kind so that the course of the unprepared cans of the

  preparation at the feeding station and return is supervised

  so that the unprepared cans can be rejected in time, without the need for an installation

expensive and important.

  This task is solved according to the invention by the fact that each unprepared can is brought back, in its course, to the feed station and again to the preparation station, and when a critical report of the cans prepared and unprepared is reached for the last N cans passing through the preparation station, a

  another can not prepared and brought to the prep station

  ration is no longer brought back to the feeding station, but

is rejected from the course.

  To carry out the process according to the invention, a device is used in which, between the preparation station and the coiler, there is a separation station actuated by a control and counting unit with a change.

  for the return of cans arriving from the station of pre-

  paration, which has an arrival and departure for the winder, the reject container and the feed station, and one of the departures is connected each time

at the arrival.

  The invention will be better understood, and other purposes,

  characteristics, details and advantages of it appear

  more clearly in the explanatory description

  which will follow with reference to the accompanying schematic drawing given solely by way of example illustrating an embodiment of the invention, and wherein: the single figure shows, in schematic form, the arrival of aligned cans of any one way and their orientation which progresses in a feeding station and then the transmission to a preparation station with return of the cans not prepared to

the feeding station.

  The installation shown in the figure shows a supply station Z, a preparation station V, which is connected to the supply station Z by means of a routing installation, for example an elevator 4, and a station separation T with a change 10 for

  the return of cans at various points.

  The feed station Z comprises a tank 1, for example a trolley of cans, where the cans are

  arranged in any way and a feeding device

  tation 3 or cans arriving from Tank 1 are

  oriented in a way that is not more fully representative

  The feed device 3 can be configured in a number of ways, and present elements of advance and feed.

  rectification, for example vibrating plates.

  The cans 2 are elevated, one by one, by the elevator 4, to the preparation station V which is at a predetermined height above the supply station Z so that the cans 2 arrive from the preparation station V, by gravity, either in the feed station Z,

  in a can magazine 5 of a winder (not shown).

  tee) or in a reject tank 6.

  In the preparation station V, a light beam 7 counts the cops 2 Another signal is produced after the preparation operation, and this signal makes it possible to establish whether the preparation has succeeded, that is to say the search and the maintenance of the wire or if it has not succeeded, for application, by a connecting pipe 8, to a counting and control unit 9 Of the counting and control unit 9, changes 10 of the station separating members T are actuated so that the cans considered to have been prepared are taken to the magazine 5 and the cans considered unprepared are again brought back into the path to the feed station Z or the rejection tank 6 The separation station T is connected, by a pipe 11, to the preparation station V By the change 10, the pipe or feed 11 is connected to the branches 12, 13, 14 among which the die rivation 12

  produces the junction with the magazine 5, the derivation 13-

  the junction with the discharge tank 6 and the bypass 14 the junction with the supply station Z In the figure,

  the cans brought back by the diversion 14 arrive at

  This is not necessary, but the bypass 14 could be extended

to the tank area 1.

  The installation shown in the figure operates as follows: the cans 2 coming out of the tank 1 are fed one by one by the elevator 4, to the preparation station V, where they are counted and where their state of preparation is examined. preparation in the preparation station V is successful, the changes 10 connect the line 11 to the bypass 12, and thus the conserned can is brought to the store 5 If it is established that the preparation has not succeeded,

  the changes 10 connect the line 11 to the branch 14.

  The cans concerned then arrive again in the path, at the feed station Z Similarly, all the cans, which can not have been prepared, are taken to the feeding station Z where they arrive.

  again at the preparation station Some of the can-

  net 2 put into circulation can be prepared successfully on the second pass and brought to the store Only a relatively small portion of cans 2 remain :: in circulation, ie those which can only be prepared So that these cans, whose quantity, with the increase of the operating time becomes more and more important, do not load: I nutilement the preparation station V and do not thus prevent the preparation of In other cans, the ratio of the prepared and unprepared cans of the last N cans going through the preparation station V Si is determined each time. For example, with N equals 8, the last eight cans passed are established as having been prepared and if the number of cans not having been prepared is greater than a pre-established number, for example of 2 or 3 cans, this number of extra cans is not brought back into the circuit of the s t power supply

  but is led by a corresponding derivation of the change-

  10, in the reject container 6 By this measure, it is possible that the number of cans still to be prepared by hand does not exceed a determined value and thus can be avoided an unnecessary load of the station. Preparation V This kind of monitoring of the cans in the preparation station can be carried out with comparatively simple control means The prepared cans all arrive in the magazine 5 of the winder, while the unprepared cans are brought back into the circuit to the station only when the portion of the unprepared cans is too high, unprepared cans exceeding the set value arrive in the container

rejection 6.

  The simplicity of the described installation makes it possible to adjust it, without mechanical change, for a wide range of

  diametersand different lengths of cans.

Claims (4)

R E V E N D I C A T IO N S   1.Process for the preparation of cans, which are brought from a feed station to a preparation station preceding a winder where each can (2) is prepared by searching for the cane thread and transmitting it to a claw, and is ultimately driven to the winder characterized in that each   unprepared can (2) is brought back to the food station   Z is again fed to the preparation station I (V) and when a critical ratio of the prepared and unprepared cans (2) in the last N cans is reached   walking through the preparation station, an extra can of   unprepared waste brought into the preparation station (V) is no longer brought back to the feed station (Z) but is exit of the course.   2 Process according to claim 1 characterized in that each time the number of cans prepared and unprepared in the last N cans running through the preparation station is established, stored and compared to the predetermined number, and when the critical report is reached, the unprepared cans are out of the way, until the ratio is again below the critical ratio.   Process according to any one of claims 1 or   2 characterized in that the cans brought into the circuit are conducted at any location to the feed station (Z) advantageously in the can area not yet ordered -   4 Device for implementing the method according to claim 1 characterized in that between the preparation station (V) and the winder is a separation station (T) actuated by a counting and control unit (9) with a change (10) for returning the cans arriving from the preparation station, which has an inlet (11) and bypasses (12, 13, 14) to the winder, in a discharge vessel (6) and to the station supply (Z), thus each time one of the branches (12, 13, 14) is connected to the pipe supply (11).