DE2166101B2 - Electronic pattern control system - for circular knitting machine - Google Patents

Abstract

Pattern information is stored in a 100 x 100 matrix which is read by a programmed reader associated with row and column counters all gated by a central programme unit fed with timing pulses by a rotary encoder which also gates buffer stores feeding the power amplifiers for the individual needle drive magnets. The main gating pulses to the row counter are passed via an adjustable, auxiliary computing unit from the main programme unit. Increased versatility and reliability is achieved.

Description

The invention relates to an electrical pattern device for multi-system circular knitting machines to: Needle selection on the individual systems arranged, pattern-based controllable electromagnetic egg Actuators, with a sample program carrier form of a coordinate memory with a memory for each stitch of the pattern report, in which pattern information through different settings gen of switching provided in the memory locations can be stored, and with the individual systemers assigned caches, in which the Muslerinformatio stored in the coordinate memory nen each time a clock pulse generator occurs depending on the position of a reference del generated and readable in rows via a row counter forwarded clock pulse are and from which the pattern information generated by the clock pulse generator, dei clock pulses corresponding to individual needles and forwarded via an addressing counter and to the electromagnetic actuators are weiterleit bar, the in the form of a plug-in panel trained coordinate memory streak-wise is coupled to an evaluation switchgear, which to evaluate the different settings of the switches provided in the memory locations a main program switch connected to the clock pulse generator designed as a code encoder factory is controlled in such a way that under the action of a mesh bar counter the a certain Sy star associated pattern information stored in the memory series of a row of the pinboard a the intermediate saliva belonging to the system can be passed on, the mesh bar counter being its on the other hand is controlled by a clock generator with high clock frequencies, which eachma by the code encoder can then be switched on when the reference needle reaches the relevant system and where the stitch henzähler is connected downstream of the main program switch that it is then each by a vorr Code encoder forwards the impulse transmitted by the main program control unit by one row of stitches is switchable if, after reading out all the different lent settings of a row of stitches in the plug-in panel the reference needle reaches the first system assigned to the next course, according to patent application [ 19 61 102.0.

In the pattern device according to the main registration, when scanning the Festmusterspei chers the individual lines of the sample report multiple successively sampled for different information, the sampling depending on de Position of a reference needle in relation to the respective knitting system assigned to a specific item of information

stem takes place, and the! scanned information buffers are assigned to the systems once per revolution in a system-wise order offered and read into the buffer memory prepared according to the needle position, from where they are assigned to the individual actuators.

The invention relates to an advantageous development of the subject matter of the main application. It is based on the object of the range of variation of Mustervor-, _u direction thereby increase, Daü the default colors of the pattern repeat can be interchanged.

The object is achieved with a sample device of the type mentioned in that the logic evaluation switch unit is connected to the main program switch unit via a switch unit is. The switching mechanism can have several switching contacts, each with inputs from AND stages are connected, of which a further input with one of the outputs of the main program switchgear is connected, and their outputs each with one of the several inputs of an OR stage are connected, the output of which leads to one of the inputs of the evaluation switchgear. The Umschaltkoniakte are conveniently arranged in such a way that they can be switched in pairs by plugs, with diodes on one side a common input line and on the opposite side each with a logic inversion stage are connected, which are linked together with other inverters to form a decoding circuit, whose Outputs are connected to inputs of the AND stages. On the features mentioned above will Protection only claimed in connection with the features of the main patent.

By appropriately switching the multiple changeover contacts of the changeover mechanism, in particular by means of plugs marked by different shapes or colors, the Achieve the colors programmed in the coordinate memory by assigning the and Signals supplied by the main program control unit via separate lines to other systems be assigned.

Although DT-OS 18 01 673 and 20 13 778 has become known to swap information scanned from a sample program carrier system-wise. However, these known devices differ in the control system because there is one Punched tape or all 36 systems of a knitting machine controlled at the same time from a control panel [4,10,8.11,1 become electromagnetic. An interposed program switch can also be used there the color information provided for certain systems has been switched to other systems will. In the subject matter of the invention, however, the information is distributed on the systems at another point of the control device. So here the color switching is independent of the Program switch of the control device. (> o

An embodiment of the invention is described below in connection with the drawing schematically showing an electrical pattern device according to the invention. In detail shows

F i g. 1 is a block diagram of the entire electrical sample device;

2 shows an individual representation of the circuit of the switching mechanism U.

Fig. 1 shows the individual circuit parts of the sample device, wherein the mutual assignment is indicated by connecting lines. The electrical sample device has a code rotary encoder 200 , which is coupled via a first decoder 310 to a main program switching mechanism P1 and via a second decoder 320 to an additional program switching mechanism P11. In the present exemplary embodiment, the rotary code encoder 200 is designed for a circular knitting machine with jb systems and with 18 electromagnetically actuated actuators per system of the machine. The main program switching mechanism Fl has a multi-stage switch .S'1 with two switching levels S Ii and 5I ₂ , on which certain predetermined main pattern programs can be set by the user of the machine. The additional program switching mechanism Pll is provided with a switch Sb that can be set by the user of the knitting machine and on which the user of the machine can set whether the stitches of the pattern repeat in the individual rows of stitches are each with one stitch or with two or three adjacent stitches, achieving a corresponding multiplication the pattern repeat width should be knitted.

The program carrier of the pattern device consists of a pin board 400 which allows the programming of a pattern repeat with a width of 100 wales and a height of 100 rows and which is coupled to an evaluation switchgear PIL. The reading of a pattern repeat programmed on this pegboard 400 by the user of the machine with the aid of different colored or differently shaped plugs takes place by stitches and rows with the help of a bar counter ZA and a row counter ZB. The evaluation switching unit PIII is connected to four output lines 1, 2, 3 and 4 of the main program switching unit Pl. The control input of the mesh bar counter ZA is connected to a 50 kHz generator G , which supplies the counting clock pulses for this counter and whose input is connected via a differentiating element 500 to the 36 inputs of the main program switching mechanism P1.

The evaluation switching unit PIII is connected to one of the several inputs of 36 buffer stores Zsp 1 to Zsp 36 in each case via a common output line 510. Another input of these 36 buffers, each of which is assigned to one of the 36 systems of the machine, is connected to one of the 36 inputs of the main program switching unit P1, and a third input of this buffer unit receives control pulses from the additional program switching unit PII.

Each buffer Zsp 1- Zsp 36 is followed by a power amplifier MV \ - MV36, which in turn controls one of 36 magnetic devices MA , each assigned to one of the systems of the circular knitting machine and, in the selected embodiment, 18 electromagnetically actuated actuators for the needle lifters or needles in the needle cylinder of the machine.

The pattern device has further switches adjustable by the user of the circular knitting machine, such as a switch 52 with three switching parts for setting the units, tens and hundreds of a number which means the number of stitches of the desired pattern repeat width of the knitted fabric. This switch S 2

is connected to the intermediate memories Zsp 1-36 of the pattern device via a decoder 330. The user of the knitting machine can set the desired repeat height according to the number of rows of stitches at a further switch S3, which corresponds in structure to switch S 2. This switch 53 is connected to the row counter ZB of the pin board 400 via a decoder 340 . By means of a switch 54 connected to the buffers Zsp and by means of a switch S5 connected to the row counter ZB , the user of the machine can finally choose to double the pattern repeat width or the pattern repeat height by means of a mirror-image representation of the pattern repeat programmed in the pegboard 400 in width or height of the knitted fabric. The switch 71 connected to the course counter ZB is used to start the electrical pattern device and initially causes the course counter ZB to be reset to its first counting level 1.

The 36 system signals supplied by the rotary code encoder via the first decoder 310 activate the 36 intermediate memories Zsp 1 -36, which ensures that these intermediate memories are permanently assigned to the individual systems of the machine. The buffer Zsp 1 is assigned to the system 1, the buffer Zsp 2 to the system 2, etc.

The 36 system signals are also used in the main program switch PI for scanning the pin board 400 of the sample device. In the main program switching unit Pl, certain basic pattern programs are permanently stored by means of appropriate wiring of logic circuit elements.

What these basic sample programs look like in detail is of interest in connection with the present invention not. In the selected exemplary embodiment, there are, for example, nine basic pattern programs provided, which can be optionally set at the 9 levels of switch 51. That Basic pattern program 1 relates, for example, to a 2-color pattern that is knitted in two systems target. All 36 systems of the machine work and each complement two successive systems each other. In contrast, the basic pattern program 4 relates, for example, to a 4-color pattern in which only 32 systems of the machine should work. The machine user receives a list of these Basic pattern programs, from which it can also be seen which system of the machine through this basic pattern program the same thread colors are assigned.

The switching of the number of meshes ZA takes place with the help of the 50 kHz clock generator G. Kr thus determines the speed of writing * the information signals read one after the other and supplied via the common output line 510 of the output switch Pill into the individual buffers Zsp 1-Zsp36. The stored information is read out from the buffer stores Zsp under the control of the additional program control unit Pll.

These individual pieces of furniture are in the main package described in more detail.

For an elongation of Mustcrrapports in the height of the stitch row counter ZZJ is the tStccklafcl 400 preceded by a / ilhlcr P IV, which is coupled to a switch 57, of the three stages 1, 2 and 3 has. With the switch 57 the number of steps of the counter PIV can be selected between one and three steps.

The input of the counter PIV is via one of the four UPS

Lines 1000 with output 1 of the main pro-I

program switch PI connected. Ste

If the Schaller 57 is in position 1, only one sin

Level of the counter PIV effective, and at the output of the OE

Counter an increment signal is effective each time, Su

as soon as vic

Pl a signal appears. This incremental signal causes Au

switching the row counter ZB to over (

ίο the next row. much

If the switch 57, however, according to FIG. 1 in its de

Position 3, there is an incremental pulse from the counter PIV mi

only after three signals have appeared at the Au output

1 of the main program control unit PI. As a result <

the information for a row of stitches is at de:

three consecutive system groups of knitting Fn

machine and thus in the knitted fabric of the pe

predetermined pattern repeat in length around the one

stretched three times the amount. dei

In position 2 of switch 57, an Au occurs

Doubling of the pattern repeat height. sti ¹

With an additional switch LJ between the

four outputs of the main program control unit Pl be

and the evaluation switchgear PHI can eh

is signal assignments to the systems in groups ka

be swapped, so that, for example, in the bc

Pegboard information stored, normal- H;

reject the first system of a system group

are forwarded to the fourth system in this group nc

and on the other hand those of the fourth system

associated information on the first system wi

this system group. This way hi

can a color swap within the on the br

Achieve pegged pattern repeats.

The switching mechanism U is shown in FIG. 2 in detail you

shown. It has four slots 1002 , at de

which by means of not shown, different de

Plastic plug each with two contacts a and b St

can be switched. The one connection side of all wi

• ίο contacts a and b of the four connectors is each over

a diode 1007 with a common input 1009 Ei

of the Umschaltwcrkcs connected. The other connection- g <

side of the contacts a and b is each connected to a reversing stage 1004 , which has an equal reversal

-is kchrstufc is downstream. Each connector 1002 of the switching unit U is assigned four such inverting stages, which together form a decoding circuit with the four outputs 1010, 1011, 1012 and 1013 . The cover circuit is on your entry site

so directly behind the two contacts a and b connected to ground via resistors 1003 .

The four outputs of the decoding stage of each connector 1002 of the switching circuit II are each connected to an input at two of four AND gates 1005 ,

ys of which the switching mechanism shown has a total of four groups of four AND gates 1005 . ) c an input of each of the four AND stages 1005, which are each assigned to the Stcekstcllen 1002 of Umschnltwcrkcs U , is via one of the four lines 1000 with a

(.ο the Signaluusgiingc 1,2,3 or 4 of the Hauptprogrnmmschnllwcrkcs Pl connected, for example to the signal output I. The signal outputs 1 to 4 of the Main program switchgear Pl supply signals which determine the system assignment within a system group

f's pe control. The signal output 1 delivers, for example a signal for the release of a first system of a system group; signal output 2 supplies a signal for the release of a second system of a system group c

The outputs of the four UN D gates 1005, which are assigned to the slots 1002 of the switching unit U , are each connected to an input of one of four OR stages 1006, each AND stage 1005 of each slot 1002 with a different one of the four OR stages 1006 of the switching mechanism U. The outputs 1, 2, 3 and 4 of the four OR stages 1006 are via the in Fi g. 1 designated lines 1001 are connected to the four inputs of the evaluation switchgear PII. In Fig. 2, the outputs of the OR stages 1006 are provided with the digits of the inputs of the downstream evaluation circuit PIL.

Without the switching unit U , a release signal appearing at output 1 of the main program switching unit PI for a first system of a system group would occur at input 1 of the evaluation switching unit PIII, and the evaluation switching unit PIIl would insert the slots assigned to color 1 of the row of stitches on the pegboard currently determined by the row counter ZB 400 and feed the information obtained to the first system of the relevant system group via a buffer Zsp. With the help of the switching mechanism U it can now be ensured that instead of color 1 when a signal occurs at output 1 of the main program switching mechanism PI, another color is scanned, the information determined then being fed to the first system of the system group concerned. With the help of the switching unit U , the assignment of the signal outputs I to 4 of the main program switching unit PI to the inputs 1 to 4 of the evaluation switching unit PIL is changed.

With the help of the connector, not shown, z. B. by different switching of the contacts a and b of the four plug-in points 1002 of the switching mechanism U at the individual outputs 1010, 1011 and 1012, 1013 of the plug-in points 1002, the following signal combinations can be achieved:

First piece 1002 (in Fig. 2 from bottom to top counted) corresponds to color 4:

Output 1010 0

Output 1011 L

Output 1012 0

Exit 1013 L

Second slot 1002 corresponds to color 3:

Output 1010 0

Output 1011 L

Output 1012 L

Output 1013 0

Third slot 1002 corresponds to color 2:

Output 1010 L

Output 1011 0

Output 1012 0

Exit 1013 L

Fourth connector 1002 corresponds to color 1:

Output 1010 L

Output 1011 0

Output 1012 L

Output 1013 0

With these signals, the AND stages 1005 controlled and the four outputs 1 to 4 of the main program control unit PI, which via the lines 1000 are connected to the input side of the AND gates 1005, via the downstream OR stages 1006 linked to the inputs of the Pill evaluation switchgear connected via lines 1001.

In the case of the FIG. 2 shown example of the position of the contacts a and b at the four plug-in points 1002 it can be seen that, for. B. the output 1 of the main program switching mechanism PI is linked to input 4 of the evaluation switching mechanism PIII. Of the

.10 Output 2, output 3 and output 4 of the main program switching unit PI are connected to the input 3, the input 2 or the input 1 of the evaluation switchgear PIII. The consequence of this shift setting is a complete color reversal within the knitting pattern repeat given in the pin table.

In the case of a two-color sample, of course, only color 1 is swapped for color 2.

The switching unit U can also be provided with a four-stage switch in place of the plug-in units 1002. When using such a switch, a decoder circuit with the inverting stages 1004 can be dispensed with and the outputs of the switch can be connected directly to the inputs of the AND stages 1005, which is then only

4.S must have two entrances.

For this purpose 2 sheets of drawings

709M1 / 1I

Claims (3)

Patent claims: 1.Electric pattern device for multi-system circular knitting machines with pattern-controlled electromagnetic actuators arranged on the individual systems for needle selection, with a pattern program carrier in the form of a coordinate memory with a memory location for each stitch of the pattern repeat; in which pattern information is provided by different settings of switches provided in the memory locations can be stored, and buffer memories assigned to the individual systems, into which the pattern information stored in the coordinate memory can be read in rows at the occurrence of a clock pulse generated by a clock pulse generator depending on the position of a reference needle and forwarded via a course counter and from which the pattern information is passed through further clock pulses generated by the clock pulse generator, corresponding to the individual needles and forwarded via an addressing counter, can be read out and sent to d The electromagnetic actuators can be passed on, the coordinate memory in the form of a plug-in board being coupled with an evaluation switch mechanism, which, for evaluating the different settings of the switches provided in the memory locations, is controlled by a main program switch mechanism connected to the ais code rotary encoder, connected to the clock pulse generator, in such a way that Under the action of a mesh bar counter, the musler information assigned to a certain system and stored in the memory locations of a row of the table of items can be forwarded to the intermediate memory belonging to the system, the mesh bar counter in turn being controlled by a clock generator with a high clock frequency, which is triggered each time by the code encoder can then be switched on when the reference needle reaches the system in question and the course counter is connected downstream of the main program control mechanism in such a way that it then passes through a The pulse passed on by the code encoder via the main program switching mechanism can be incremented by a row of stitches if, after reading out all the different settings of a row of stitches on the pegboard, the reference needle reaches the first system assigned to the next row of stitches, according to patent application P 1961 102.0, characterized in that the logic evaluation switch (PIlI) is connected to the main program switching mechanism (P I) via a switching mechanism (U). 2. Electrical sample device according to claim 1, characterized in that the switching mechanism (U) has a plurality of Umschaiikoniakie (a, b) which are each connected to inputs of AND stages (1005) , of which a further input with one of the outputs (1-4) of the main program switching mechanism (P \) is connected, and the outputs of which are each connected to one of the several inputs of an ODF.R stage (1006) , the output (1001) of which leads to one of the inputs of the evaluation switching mechanism (PUl) . 3. Electrical pattern device according to claim 1 and 2, characterized in that the Umschai contacts (a, b) can be switched in pairs through plug a plug-in points (1002) , diodes (1007) with a common input (1009) on one side and a logic reversing stage (1004) on the opposite side ) are connected, d are linked together with other inverting stages (1004) > a decoding circuit, the outputs (1010,1011,1012,1013) of which are connected to inputs of the AND stages (1005) .