DE4332240A1 - Method for the transfer of selvedges produced on selvedge-knitting machines and selvedge-knitting machine for carrying out the process - Google Patents

Abstract

The invention relates to a process for the transfer of selvedges produced on selvedge-knitting machines onto the needle bars of a multi-section flat-weft knitting machine. With the aim of providing the preconditions for an automation of the process, the process is designed so that - the selvedges (3, 4) are knitted on a selvedge-knitting machine (1), are in each case removed from the rear needle bed (11) of the selvedge-knitting machine by means of extracting rakes (13) and are transferred onto a magazine rake (51) at a loading station (14), - the full magazine rakes (52) are intermediately stored in an intermediate store (6) and from there are fed to the directly adjacently positioned transfer carriage (7') of the flat-weft knitting machine (9), and - after the distribution of the selvedges (3, 4) from the magazine rake (52) onto the transfer bars (91) at the sections of the flat-weft knitting machine (9), the empty magazine rake (50) together with the transfer carriage (7) is conveyed to the intermediate store (6) and transferred there. The invention relates to a corresponding adaptation of the selvedge-knitting machine and the flat-weft knitting machine. <IMAGE>

Description

The invention relates to a method for over wearing of knitting machines made on edge knitting machines Edges on the chair needle bars of a multi-colored Flat knitting machine

• - With the edges on an edge knitting machine be knitted, using the removal calculator from each from the rear needle bed of the edge knitting machine take and at a charging station on a magazine rack be transmitted,
• - the full magazine rakes in a buffer temporarily stored and from there the OB van Flat-knitting machine are fed and
• - after spreading the edges of the magazine rake on the transfer rakes on the fonts of the flat knitting machine the empty magazine rakes the edge automatic knitting machines are fed again.

Among other things by the company Scheller in 1991 a border knitting machine in a brochure "Transrobot" in which the edges of the rear needle bed removed from the knitting machine and at a charging station loaded in groups on magazine rakes (collapsible rakes) were.

These magazine rakes were at the charging station or at taken from an intermediate position by hand and one separate storage for full and empty magazine rakes fed.

If there is a need for the flat-knitting machine the magazine rakes were hand made this store  removed, placed in the correct position and in the corresponding recordings on OB van Flat-knitting machine inserted.

In a partially mechanized, further work step the edges were successively the transfer rakes on the individual fontures of the flat-knitting machine to hand over.

Upon completion of this handover, these transfers were transferred rake, of mechanisms of flat-knitting machines ne controlled, their edges in a known manner the needles of the chair needle bar.

The knitting process for the form-finished goods parts could start.

The empty magazine rakes were turned into empty shots of the Memory inserted and if necessary by hand the edges knitting machine presented again.

A similar way of working shows u. a. the edges knitting machines from Protti - series P401 - P401D - and Sointes - AFF3 / 2 - AFF3 / 1.

With the automatic extension of the full magazine chen and the provision of an empty magazine rack the operator's firm commitment was reduced the rhythm of the machine.

This way of working was with the usual Lei parameters of the flat-knitting machine are rational and economically justifiable.

With the increase in the performance parameters of the Flachku knitting machine and its adaptability constantly changing forms of those to be produced on it Parts the error rate increases,  especially in the areas where manually in these Process must be intervened.

The high clock rate and the different sizes of the requested margins depending on the particular The flat weft knitting machine program is for the Be service personnel practically no longer controllable.

The aim of the invention is to provide the operator of Trans port and coordination problems to a large extent free.

The object of the invention is a method propose that the mutual adjustment of the Control programs for the manufacture of the knitted parts and enables their capacity coordination. The production and transport processes between edges automatic knitting machine and flat weft knitting machine from coordinatable programs become controllable.

According to the invention, the object is achieved by Total of the method steps of claim 1 can be solved. The spatial merging of the buffer and the loading position for the OB van Flat knitting machine forms the basis for the arrangement of controllable change devices and thus for the mechanization or even automation of the together the knitting machine and the flat knitting machine machine.

The use of known exchange and transport devices becomes possible.

The method according to claim 2 ensures that the edging machine with stable one-sided Edge fixation and one-sided variable knitting width ver change can be inserted into the machine system.  

The modification of the method according to claim 3 allows for two, on a Fontur the Flachku Parts to be knitted side by side Edges at the same time on a head of the Edging Knit tomatoes and at a specified distance on the Transfer needles to the flat-knitting machine.

The capacity of the double-headed knitting machine is easy to meet the needs of a 12- or 16-fontu customizable flat knitting machine.

The coordination of the controls of both machines after Claim 4 enables the edging machine in Dependence on the knitting program of the flat-knitting knitting always the right edges with the desired ones Dimensions of the flat-knitting machine accordingly can provide their work program.

The edge knitting machine to carry out this procedure rens is in its basic structure in claim 5 described. The independent knitting pro gram of the two knitting heads enable with little Effort to provide different borders and their targeted assignment to the Maga charging stations and count to the places in the store.

The design according to claim 6 enables automation Transport between two charging stations Knitting heads with a single buffer.

The changing device according to claim 7 also allows automating the relationship between intermediate storage and OB van in the smallest of spaces.  

The design of the edge knitting machine according to An saying 8 allows direct mechanical coupling the transport routes of the OB van.

The design of the control of the edge knitting machine according to claim 9 allows complex coordination the mode of operation of the edge knitting machine and flat die knitting machine.

Claims 10 and 11 describe the elements the flat-knitting machine, which is used to form a Machine system for performing the process are necessary.

The invention is illustrated below in one embodiment game are explained in more detail.

In the accompanying drawings shows

Fig. 1 is a schematic representation of the Maschi nensystems consisting of automatic knitting machine and flat-knitting machine with cross-sectional representations of the working elements and

Fig. 2 shows a second schematic representation of the machine system with views of the working fields of the machines.

The - usually as ribbed edges - trained Starting parts of regular knitted parts for outerwear are in a conventional manner on so-called Rändstrickau tomatoes made.

The edge knitting machines 1 are usually equipped with a pair of needle beds 11 , 12 to which one or more slides 15 , 25 are assigned.

The knitting needles of at least one needle bed 12 have elements for spreading and presenting the stitches on them for the purpose of transferring them to the needles of the other needle bed 11 .

The needles are controlled by means of lock parts on the slide 15 .

The needles of the needle bed 11 , which now only carry the rib edges, are subjected to the drive of a control rail (needle box 16 ), which in turn is driven by cams (not shown) or other drive elements.

With the help of a removal bar 13 , the edge 3 , 4 is lifted from the latter needles and positioned at a so-called loading station 14 , 24 opposite a magazine bar 51 .

The needles of removal bar 14 , 24 and magazine bar 51 , 51 'are aligned. The edge 3 , 4 is hanging down, pushed onto the needles of the magazine barre 51 , 51 '.

This process is repeated for each magazine rake 51 , 51 'several times. A magazine rake 51 , 51 'can carry 8 to 10 edges, in extreme cases up to 16 edges.

The magazine rake filled in this way - now designated 52 - is fed to an intermediate store 6 , which holds this filled magazine rake 52 ready for further processing.

The edges 3 , 4 are further processed on the flat-knitting machine.

There the edges 3 , 4 located on the magazine rake 52 are successively transferred to the transfer bars 91 of the individual fonts.

The needles of the transmission bars 91 lie in corresponding pockets of the magazine rakes 52 . One edge is drawn per font by hand or with the help of mechanical means onto the needles of the transfer bar there.

After each transfer, the magazine rake 52 , which has its bearing on a transfer vehicle, is offset to the neighboring Fontur.

After the transfer bars 91 are fitted all knitting heads with edges 3 or 4, to the delegation will supply ingots 91 of the Flachkulierwirkmaschine so-9 controls by control systems of Flachkulierwirkmaschine 9, the edges located on them 3, 4 the chair needles 92 closing plane of the individual knitting heads in the A be passed between boards 93 and tee 94 .

The edges are then on the back of the chair needles 92 .

The knitting process for the regular knitted part can now start on all fonts simultaneously.

From empirical values it follows that about two ropes heads of one or more edge knitting machines Flat knitting machine with 12 or 16 fonts can.

For this reason, the buffer 6 for the magazine rakes 50 , 52 on the edge knitting machine 1 are appropriately assigned to two knitting heads 10 , 20 .

A manipulator known per se conveys the filled magazine rakes 52 from their respective charging stations 14 , 24 into the buffer store 6 .

For this purpose, the intermediate store 6 is positioned in the area of the respective knitting head 10 or 20 . By means of a corresponding stroke of the carrier 60 of the buffer store 6 , an empty receptacle 61 is brought into the effective range of the manipulator.

After an analog control, the manipulator then removes an empty magazine rake 50 and transfers it to the respective charging station 14 or 24 .

The transfer vehicle 7 , which can be moved or positioned on a guide rail 71 a in front of the textures of the flat-knitting machine 9 , is held with the aid of an additional rail 71 , which can be coupled to the guide rail 71 a of the flat-knitting machine 9 , up to the buffer store 6 , a holding device 70 , 70 'performed on the edge knitting machine 1 .

A changing device, not shown, takes the empty magazine 50 from the holder of the transfer vehicle 7 and inserts it into an empty compartment 61 of the buffer store 6 . After a corresponding change in position of the buffer 6, the gripper of the changing device detects a full Magazinre chen 52 and places it in the holder of the transfer car 7 .

The transfer vehicle 7 can now be returned to the flat-knitting machine 9 with a full magazine rake 52 .

The magazine rake 52 on the broadcast vehicle 7 is pivoted together with its holder by 180 ° and can thus present the edges 3 , 4 stored on it the individual transfer bars 91 of the fonts in the correct position.

When performing this complex work process on the one hand, it depends

• - That the edges 3 , 4 get once in the correct position on the transfer bars 91 and
• - That they are passed to the needles of the chair needle bar 92 in a precisely predetermined group of needles.
• - On the other hand, it is important to ensure a continuous mode of operation of the flat-knitting machine 9 and to provide the edges 3 , 4 by the edge knitting machines 1 as required by the program of the flat-knitting machine 9 .

To ensure the correct position of the edges 3 , 4 on the transfer bar 91 , it is useful to transfer all the stitches of the edges 3 , 4 to the needles of the respective rear needle bed 11 of the edge knitting machine 1 and to lift them off there with the removal rake 13 , 23 .

The transfer to the magazine rake 51 is sensible so that the edge 3 , 4 also on the magazine rake 51 ( 52 ) still hangs down.

In this position, the magazine rake - now 52 - is fed to the buffer store 6 by a corresponding manipulator.

A changing device, which can also be formed by a manipulator, sets the full magazine rack 52 in the same position in the receptacle of the transmission truck. 7

On the way from the retaining device 70, 70 'to the first needle bed at the Flachkulierwirkmaschine 9 receiving the transfer carriage 7 is pivoted through approximately 180 ° ge and brought into such a position at which the needles of the Magazinrechens 52 to the needles of the transmission Barre 91 can create.

The edges 3 , 4 are now directed upwards and are thus pushed onto the transfer bar 91 .

During the transfer process from the transfer bar 91 to the chair needles 92 , the edge 3 , 4 is then directed so that it is positioned on the back of the chair needles 92 .

The edges 3 , 4 , which are produced on the edge knitting machine 1 , are on the needle bed 11 , 12 ; 21 , 22 of the edge knitting machine 1 positioned flush on one side. Under these conditions, the number of needles for knitting the edge can be changed in a simple manner, and the thread feeding and thread cutting process can be carried out and controlled with less effort.

The removal rake 13 , 23 detects the edge 3 , 4 accordingly eccentrically. This means that the edges 3 , 4 located on it begin on an edge needle and, depending on their length, extend to a predetermined needle lying on the inside.

The removal rake 13 , 23 or magazine rake 51 is therefore displaced laterally by a certain amount with the aim of a central transfer of the edge 3 , 4 to the magazine rake 51 before it transfers its edge 3 , 4 to the magazine rake 51 .

Are z. B. on a knitting head of a Rändstrickauto mat two edges 4 , 4 'for cuffs or for the front parts of a vest have been knitted side by side, the offset of the magazine rake 51 and the transfer of one edge 4 or 4 ' can also be done in two successive steps .

While the first edge 4 is aligned and transferred to a first imaginary tell line, which is predetermined by the control program of the flat-knitting machine, the second edge 4 'is aligned to an additional offset with a second predetermined tell line and the magazine rake 51 is transferred.

However, it is cheaper if both edges 4 , 4 'are knitted on the needle bed of the knitting head 20 at the same distance at which the knitting process begins at the font of the flat-knitting machine 9 .

A prerequisite for the implementation of this method, however, is that enough free space is created for the transfer rake on the needle bed, the edges 4 and 4 'being removed simultaneously. The cutting and reinserting of the threads in the needle hook must be ensured within the needle bed.

On the way to the transmission bar, it is of course important to ensure that the predetermined basic position of the edges 4 , 4 'is retained.

The most complicated problem is that of capacity Controlling the cooperation of the automatic knitting machine and flat weft knitting machine.

The program of the flat-knitting machine 9 is the primary program for this coordination process. It determines when what type of edges 3 , 4 , 4 'must be positioned on the transfer vehicle 7 in front of the fonts of the flat-knitting machine 9 .

From this it can be deduced when, which margin width the heads of the edge knitting machine are produced must and at what time the temporary storage must be completed.

The program can also specify which stitch length must be knitted in the manufacture of the respective edge and which widths of edges 3 , 4 , 4 'are provided in which rhythm.

It remains a correction program on the edge knitting car mats to derive the control data for the individual knitting heads 10 , 20 from these output data and to specify them as control commands.

With the previously customary design of the edges 3 , 4 and the form-fitting knitted parts, the capacity of two knitting heads is sufficient, for example, for equipping a 12- to 16-character flat-knitting machine.

Depending on the performance of the flat knitting machine 9, on the one hand, and the edge knitting machine 1, on the other hand, and the size relationships of the edge and knitted part, a different configuration of the ratio of knitting heads to fontures is also possible.

In the drawing, the magazine rakes 50 , 51 , 52 were shown as bars with a single row of needles. On this row of needles there is e.g. B. the number of edges that is necessary for loading a flat-knitting machine.

It is of course also possible to set the edges for one Loading on two magazine bars or on a maga tin bar to be fed with two or more rows of needles chern.

Advantages for the automation of the transfer pro the edges of the magazine rake on the transfer Precipitation rakes exist when each margin is on its own Row of needles is saved.

Separating the edges before the transfer process, which is complicated by an irregular position of the edges could then be omitted as a separate operation.

Reference list

1 edge knitting machine
10 1.Knitting head
11 needle bed, rear
12 needle bed, front
13 withdrawal rake
14 charging station
15 sledges
16 needle box, control rail
17 drive unit
18 control
20 2.Knitting head
23 withdrawal rake
24 charging station
25 sledges
3 rand
31 marginal group
4 , 4 ′ edge
41 , 41 ′ Rand, group
50 magazine bars, empty (also magazine rake)
51 magazine bar, at charging station
52 magazine bar, full
6 buffers
60 - carrier
61 compartment, recording
62 guide rail
63 leadership
7 , 7 ′ OB van
70 , 70 ' holding device
71 , 71 a rail
9 flat knitting machine
91 transfer bar
92 needle bar, chair needles
93 boards
94 tee
95 control

Claims (11)

1. Method for transferring edges produced automatically on edge knitting to the chair needle bars of a multi-faceted flat-curling machine,

• - The edges ( 3 , 4 ) on a Ränderstrickautoma ten ( 1 ) are knitted, removed by means of removal rakes ( 13 ) from each of the rear needle bed ( 11 ) of the knitting machine and transferred to a loading station ( 14 ) on a magazine rake ( 51 ) become,
• - The full magazine rake ( 52 ) in a Zwischenensi cher ( 6 ) temporarily stored and from there to the directly positioned transfer vehicle ( 7 ') of the flat-knitting machine ( 9 ) are fed and
• - After the distribution of the edges ( 3 , 4 ) of the magazine rake ( 52 ) on the transfer bars ( 91 ) on the textures of the flat-knitting machine ( 9 ) the empty magazine rake ( 50 ) with the transfer carriage ( 7 ) is conveyed to the buffer store ( 6 ) and handed over there.

2. The method according to claim 1, characterized in that
that the edges ( 3 , 4 ) are knitted in a manner known per se flush on the needle bed ( 11, 12 ) of the edge knitting machine ( 1 ),
that the edge ( 3 , 4 ) of the removal rake ( 13 , 23 ) is also removed from the needle bed flush on one side,
that prior to the transfer of the edge ( 3 , 4 ) to the Maga zinrechen ( 51 ) removal rake and / or magazine rake are offset by a defined number of needles and
that the axial position of the edges ( 3 , 4 ) to the respective rake is retained in all subsequent transmission processes. 3. The method according to claim 1, characterized in
that on a needle bed ( 21 , 22 ) at least two edges ( 4 , 4 ') are knitted at the mutual distance as they are knitted on the flat knitting machine ( 9 ) on a font,
that they are taken from a single removal rake ( 23 ), stored on a magazine rake ( 51 ') and presented and handed over at the same distance from the transmission bar ( 91 ) and the chair needles ( 92 ). 4. The method according to claim 1 to 3, characterized in that
that the control computer ( 18 ) of the edge knitting machine ( 1 ) data about the program sequence of the flat-knitting machine ( 9 ) are fed and
that the control computer ( 18 ) of the automatic knitting machine ( 1 ) derives program data and capacity-related data of the automatic knitting machine ( 1 ) from the data of the program flow of the flat knitting machine ( 9 ) according to predetermined correction programs. 5. Edge knitting machine for performing the method with at least one knitting head ( 10 , 20 ), a taxable removal rake ( 13 , 23 ) and a charging station ( 14 , 24 ) for magazine rakes ( 51 , 51 ') according to claim 1 to 4, characterized ,
that each knitting head ( 10 , 20 ) is assigned a charging station ( 14 , 24 ) for magazine rakes ( 51 , 51 '),
that at least one buffer ( 6 ) for full and empty magazine rakes ( 50 , 52 ) is assigned to the charging stations ( 14 , 24 ) and
that the buffer ( 6 ) is a holding device ( 70 , 70 ') for a broadcast vehicle ( 7 ) of the Flachku ling knitting machine ( 9 ) is assigned immediately adjacent. 6. edging machine according to claim 5, characterized in that
that a single intermediate store ( 6 ) is assigned to two loading stations ( 14 , 24 ) on a two-headed edging machine ( 1 ),
that the buffer ( 6 ) between the two loading stations ( 14 , 24 ) is displaceable and
that at least one of the positions of the intermediate store ( 6 ) a holding device ( 70 , 70 ') is provided for the OB van ( 7 ). 7. edging machine according to claim 5 and 6, characterized in that the holding device ( 70 , 70 ') for the transfer carriage ( 7 ) is assigned a changing device for magazine rakes ( 50 , 52 ). 8. edge knitting machine according to claim 5 to 7, characterized in that the holding device ( 70 , 70 ') for the transfer carriage ( 7 ) of the flat-knitting machine ( 9 ) via a guide rail ( 71 ) with the guide rail ( 71 a) of the transfer carriage ( 7 ) is connected to the flat-curling machine ( 9 ). 9. Edge knitting machine according to claim 5 to 8, characterized by a control device ( 18 ) for the knitting process and for the loading of the intermediate store ( 6 ),
that the control device ( 18 ) is connected via an information line to the controller ( 95 ) of the flat-curling machine ( 9 ) and
that the control device ( 18 ) has program memory for controlling the drive speed of the knitting machine edges ( 1 ) which, depending on selected, current program positions of the flat-knitting machine ( 9 ) and data on the filling level of the buffer ( 6 ), can be selected and triggered. 10. flat knitting machine for carrying out the method according to claim 1 to 4, characterized in that for the purpose of direct connection of the flat knitting machine ( 9 ) with the edge knitting machine ( 1 ), the guide rail ( 71 a) for the transfer carriage ( 7 ) at least One end with a coupling for a guide rail ( 71 ) for holding device ( 70 , 70 ') of the transfer carriage ( 6 ) on the edges of the knitting machine ( 1 ) is provided. 11. Flat-knitting machine according to claim 10, characterized in that the control ( 95 ) of the flat-knitting machine ( 9 ) is provided with an interface via the position data of the flat-knitting machine ( 9 ) of the controller ( 18 ) of the edge knitting machine ( 1 ) can be fed.