DD201327A5 - FLAT KNITTING MACHINE WITH ELECTRONIC CONTROL - Google Patents

Abstract

The invention relates to a flat knitting machine with electronic control, which contains programmable read-only memory in the form of PROMs and freely accessible memory in the form of RAMs and components for inputting the data for the operation of the machine. The aim and object of the invention is to reduce the effort in the preparation of the machine and to reduce the error probability. This object is achieved according to the invention in that the controller has an internal slice setting unit, a programmable read only memory unit, a microprocessor and a data storage unit with random access, which are interconnected via a common control bus, that in the read only memory unit and in the data storage unit separate memory for the data are provided by five sub-groups image cartridge, Nadeleinteilung, knitting scheme, function number list and scheme sequence that external selector switch are connected to the internal interface unit, and that the motif design without intervention in the knitting program memory for needle pitch and Schemaableuf in the memory units via the external selector switch can be controlled. figure

Description

233784 5

Flat knitting machine with electronic control

Field of application of the invention:

The invention relates to a flatbed machine with electronic control, which contains programmable read-only memory in the form of PROMs and freely accessible memory in the form of RAMs, as well as components for applying the data for the operation of the machine.

Characteristic of the known technical solutions:

From DE-OS 2 301 847, such a flat knitting machine with electronic control has become known üie surrender of the data takes place there via a magnetic tape storage or by hand. Fixed-value memories are provided for parts of the permanent operating program, while all other items for each setting of the machine must be entered into a freely accessible memory RAM. This leads to increased effort and increased error probability.

By the journal "knitting and knitting technology", October 1977, pages 496-500, an NC-controlled flat knitting machine has become known in which all

1 a JUL 1981 * 946742

2337 8 4 5

Machine functions can be controlled by means of moving perforated strips. This is the knitting program set, any repetitions are not possible.

Finally, DE-OS 2 120 892 discloses a flat knitting machine which contains read-only memories for certain basic knitting patterns and their needle divisions. Freely accessible memory RAM, in which any knitting programs could be stored, are not there. Rather, such knitting programs must be entered serially on-line into the knitting machine from a tape store. A change in the design of the subject necessitates the production of a completely new program carrier.

In Fiachknittmaschinen with electronic control, the preparation and input of data for the operation of the flat knitting machine is so far complicated and time-consuming, so that this input only successfully performed by specially trained specialists. The step of simplifying the inputting of the data therefore leads to a higher utility of the flat knitting machine.

Aim of the invention;

The aim of the invention is to provide a flat knitting machine of the type described above, which leads to a ι as little effort in the preparation of the flat knitting machine for operation by the knitter and allows an extremely simple implementation of pattern variants. The error probability during data entry should be kept as low as possible.

2337 8 4 5

Explanation of the essence of the invention:

Based on a flat knitting machine with electronic control, which contains programmable read only memory in the form of PROMs and freely accessible memory in the form of KAMs and components for inputting the data for the operation of the machine, this object is achieved according to the invention in that the control has an internal interface. unit, a programmable read-only memory unit, a microprocessor and a random access data storage unit, which are interconnected via a common address, data and control bus, in that the read-only memory unit and the data "" memory unit have separate memories for the data of five Subpictures Biidpatrone, Nadeleinteilung, knitting scheme, function number list and scheme are provided that external selector switches are connected to the internal interface unit, and that the motif design without interference with the knitting program, the memory for Nadeleinteilu ng and Schemaabiauf in the memory units via the external selector switch can be controlled.

In the read-only memory unit expedient programmable read-only memory for data subgroups from the Tüilgruppe needle division with assigned special function numbers for frequently used knitting techniques are provided.

In an advantageous embodiment, a function key connected to the internal interface unit for storing and retrieving the data subgroups from the subgroup needle division with assigned special function numbers is provided on the machine.

In other words, the control is constructed and switched so that the data in five subgroups

_ 4 -

233784 5

Biidpatrone, Nadeleinteilung, knitting scheme, function number list and schema sequence are divided into the electronic control einspeicherbar that data subsets from the subgroup Nadeleinteilung with assigned special function numbers for retrieval in the read-only memory of the electronic control einspeicherbar, unc motivational designs on the data storage in the IEUgruppen Nadeleinteilung and scheme sequence and via external selector switch on the machine without intervention in the knitting program are vornehmbar.

With this flat knitting machine can be a significant reduction in the workload and complexity in the data input by the knitter reach, the knitter has the same time to make motifs in the knitting pattern time-saving and varied varied.

The sub-groups image cartridge, needle classification, partial function number list and schema sequence contain pattern-specific data, while the subgroup embroidery scheme and associated data groups of the subgroup function number list machine-specific data, i. in fixed value memory of the electronic control permanently storable data included.

As already mentioned, frequently used knitting techniques such as RR, 2: 1, l: l bundles can be stored in the read-only memories of the electronic control system. Furthermore, aucl data subgroups for the execution of standard knits, such as a 2: 1-bundle separation row and transition rows, can be saved in the read-only memory of the electronic control unit.

The data subgroups from the subgroup Needle Division with assigned function numbers for the described

23378 Λ 5

Special functions can advantageously be stored in each case via a single function key and optionally later also be retrievable.

To perform in a quick and easy way motivational designs in the form of horizontal reflections, the electronic control is zweckmäßig..derart constructed and connected that when storing the data from the Teiigruppe Nadeleinteilung needle divisions in backward steps einspeicherbar or backward in operation are available.

A simple and fast vertical mirroring possibility of motifs results from the fact that data can be stored in backward steps during the storage of the data from the subgroup schema sequence and later retrieved accordingly Horizontal and vertical mirroring of motifs combined allows a double mirroring or a needle / none -Reflection.

A development of the flat knitting machine according to the invention is that the electronic control is constructed and switched so that in the storage of data from the subgroups Nadeleinteilung and scheme sequence needles and / or knitting rows are weglaßbar. Hereby one obtains the possibility of partial reflections and omitting only one needle or one row of knitting the possibility of a direct spotting middle stitch or middle row. Thus, the motif can also be stored in the horizontal and vertical direction as desired.

Another possibility of the motif design results from the fact that the external selector switches are provided on the machine for the input of commands for motivational suppression and the electronic control is constructed and switched so that motifs by placing motivational

233784 5

Share on the external selector switch and selective suppression of subject parts are designed without interference with the knitting program. The external selector switches are shown in the knitting program, but their values are set directly on the machine. If a subject is placed on a selector switch and this is set to zero, then this motif does not appear, i. E. the motif is not knitted. The selector switches can influence both horizontal and vertical program sequences, with the commands of the selector switches being superior to all five subprograms.

If a plurality of sequentially controlled selector switch set to zero, so for example, provided on the basis of the overall program with multiple motifs knitted piece in "um" to be.

To further simplify the data input, the electronic control of the flat knitting machine according to the invention is expediently constructed and switched such that the axle data for the operation of the flat knitting machine can be stored from the memories of the electronic controller to external data carriers, for example magnetic tape cassettes. The AD storage of the data on external data carriers allows archiving of the data as well as a very fast re-entry into the machine, if it is to be knitted with a previously assembled program.

Embodiments;

The invention will be explained in more detail below with reference to some embodiments. The associated drawing shows a block diagram of an electronic control according to the invention.

233784 p

In the block diagram, the component 1 is installed in the frame of the flat knitting machine, which contains a keyboard, a display, a counter and a switch. ;

The interface unit 2 is an internal interface module constructed as an IC module and the read-only memory is a programmable read-only memory PRQM constructed as an IC module. The microprocessor 4 is a Microprpzessorodul constructed as IC Mödul. The data storage unit is a data memory KAM constructed as an IC module with random access.

The component 1 and the interface unit 2 sxnd acting in two directions connected to each other. Units 2, 3, 4 and 5 operate on a common address, data and control bus 8 and are received from

f this bus 8 information or signals.

With the interface unit is also a data carrier device 6 in mutual operative connection. The data carrier 7 receives its recordings from the data carrier device 6 or supplies its recordings via the data carrier device 6 to the interface unit 2.

For inputting data for the operation of a flat knitting machine with electronic control, there is advantageously a complete knitting program on a magnetic tape. This magnetic tape is then recorded by means of a tape device in the electrical control of the machine. The electronic control of the flat knitting machine contains read-only memory, for example in the form of PROMs and freely accessible memory, for example in the form of RAMs. In such a control, the data for the operation of the machine by importing a

233784 5

or more of subgroups or parts of subgroups of data, thereby obtaining a new overall program. The compilation of the data is based on specially prepared forms, ι each subgroup of data is associated with a form.

The entire data for the operation of the folding knitting machine are subdivided into a total of five subgroups in order to be able to carry out the simplest possible and error-free data entry with the least possible outlay on the part of the entering operator. The five subgroups of data are a first subgroup image cartridge, a second subgroup needle submission, a third subgroup knitting scheme, a fourth subgroup function number list and a fifth subgroup schema flow.

The first sub-group of image cartridges of data corresponds to a technical cartridge for knitting, stitch transfer and stitch transfer for the needle beds in, for example, the creation of a cable pattern.

The second subgroup of needle data division encompasses the horizontal sequence of the knitting process, ifs a normal input with automatic repetition over the entire machine width is possible. More than eight knitted tapes or needle room widths must be specified by single entry. In total, up to 64 needle divisions are possible. Furthermore, up to 64 selector switches with a maximum value of 235 repetitions of data and data groups are provided on the machine. '

The data for both the image cartridge subgroup and the subgroup needle classification are sample-specific data.

233784 5

The third subgroup Knitting Scheme refers to the series setting for standard patterns, i. the data about what should happen in a row, such as putting on, shifting, stitching, catching, off, threading. This subset Knitting Scheme contains machine-specific data for knitting standard patterns of color and cape-3acquard patterns, such as two-color jacquard patterns, three-color jacquard patterns, four-color jacquard patterns, half-tube patterning, and braid patterns. The data of this sub-group knitting scheme are entered into the fixed memory of the electronic control of the flat knitting machine and can be retrieved from there via a function key or stored out for archiving to external media '.

The fourth subgroup voft data is the subgroup Function Number List. This subgroup contains the data on the use of the function series defined in the subgroup Knitting Scheme as well as on the use of function series from the pattern-specific data. Each recurring function series can be called up as required from the machine-specific subgroup Knitting Scheme. The data of the subgroup Function Number List F, which additionally affect the subgroup Knitting Scheme, are also transferred to the fixed memories of the mascfhine. The other pattern-specific data from the subgroup Function Number List are entered into the electronic control unit of the machine during each machine preparation. , The subgroup function number list concerns u.a. the repeat of the piece of knitting.

The fifth subset of data is the subgroup schema flow. This subset contains pattern specific data for the vertical process of knitting. The data is input to the electronic controller each time by the operator when preparing the knitting machine.

• - IO -

233784 5

- ίο -

As already mentioned, the data for standard patterns of color and wrap-around jacquard patterns, eg half-tube patterns, cable patterns or two-, three- and four-color jacquard patterns, can be summarized as constantly recurring data and defined in the sub-group knitting scheme of the data. The data of T _e ilgruppe knitting pattern is then stored together with the additional data required for the standard pattern data of the sub-group function number list firmly in control of the flat knitting machine and are available there for retrieval or for destaging for archiving ready. The data of the remaining subgroups must be redefined and entered into the machine. For the entire knitting process all data of the five subgroups will be used together. Although different image cartridges show different image patterns, but have knitting technology the same processes.

To simplify the preparation of the data for the operation of the flat knitting machine as well as the storage in the machine as possible, are used for commonly used knitting techniques such as RR-Bund, 2: 1 waistband, l: l waistband, etc., and for standard knits, for example, separation row with 2 : 1-fret and transition rows used special functions that allow these bindings to work without sub-row mapping. For this purpose, data subgroups from the subgroup needle assignment with assigned special function numbers are combined and stored for retrieval in read-only memory of the electronic control system. The right needle selection is then performed automatically by the controller. A pattern layout for these bindings is not required. The special functions are called up via the special function numbers for each stilt lock.

- 11 -

2337 8 A 5

Another possibility for the simplification of the data preparation and input for motivational design is the modification of data from the sub-groups! Madeleinteilung und Schemaablauf zum Motivspiegelung. Characterized in that when storing the data from the subgroup Nadeleinteil Nadeleinteilungen backwards stored and retrieved later, can be horizontal reflections, i. Perform needle reflections in a simple way. By means of a storage of the data from the sub-group schema digest and appropriate retrieval, a vertical reflection, i. Row reflection are made. Both reflections combined result in a double mirroring horizontally and vertically or a needle / row reflection.

If needles and / or knitting rows are omitted during the storage of the data from the subdivisions Nadeleinteilung and Schematic sequence, the result is a total or direct mirroring and partial mirroring is also possible. The omission of a needle or a row allows the mirroring middle stitch or middle row. It goes without saying that the motif can also be stored in any desired offset in the horizontal and vertical directions.

For further Motivgestlatung the individual motifs can be placed on external selector switch on the machine. The external selector switches are shown in the knitting program, but their values are set directly on the machine. If a selector switch is set to zero, then the corresponding motif is not knitted, whereby motif designs can be made without interfering with the knitting program. This is true for both horizontal and vertical program flows.

- 12 -

233784 .5

If sequentially controlled selector switches are set to zero, then a knitting piece provided with knitting program with several motifs can be knitted in "uni". The commands of the external selector switches are superior to the knitting program of all five subgroups of data.

With the subdivision of the necessary for the operation of the flat knitting machine data in five groups, storage of special functions in the form of data subgroups from the subgroup needle classification and motivational interventions in the subgroups Nadeleinteiiung and scheme sequence and command via external selector switch not only simplifies data input if the machine It is also possible to archive the data for complete knitting programs quickly and cheaply. This archiving can take the form of retrieving and storing the complete data on external data carriers, preferably magnetic tapes. In this case, either only the data of the five subgroups or in addition the predetermined by the setting of the external selector data from the machine can be retrieved and archived. The all data for a particular knitting of one or more knitting pieces containing external media can in turn then be used to enter the data in the machine by semi-skilled helpers. In addition, it is possible to create data prints from the data archived on the external data carriers, which gives the knitter a direct overview of the stored data in knitting machine-specific form.

Claims (4)

invention claim 1. An electronic control flatbed machine comprising programmable read only memories in the form of PRUMs and freely accessible memories in the form of RAMs and components for inputting the data for operation of the machine, characterized in that the controller has an internal interface unit (2), a programmable logic controller Read-only memory unit (3), a microprocessor (4) and a data storage unit (5) with random access, which are connected to each other via a common address, data and control bus (8) that in the read-only memory unit (3) and in the data storage unit (5) separate memories for the data of five sub-groups image cartridge, Nadeleinteilung, knitting scheme, function number list and scheme are provided that external selector switch to the internal Schnittstelieneinheit (2) are connected, and that for motivational design without intervention in the knitting program, the memory for Nadeleintexiung and Schemaablau f in the memory units (3, b) can be controlled via the external selector switch. ^v 2. Flat knitting machine according to item 1, characterized in that in the read-only memory unit (3) programmable read only memories for data subgroups from the Teiigruppe needle division with assigned special function numbers for frequently used knitting techniques are provided. 3. flat knitting machine according to Bunkt 2, characterized in that a on the internal interface unit (2) switched function key for Einspeibhern and retrieve the data subgroups from the subgroup needle division with - 14 - 233784 5 assigned special function numbers are provided on the machine. 4. flat knitting machine according to one of the preceding points, characterized in that a Datenenträgorgerät (6) with associated data carrier (7) for storing all data for the operation of the flat knitting machine from the memories of the read-only memory unit (3) and the data storage unit (5) on external data carriers (7), for example Magentbandkassetten, is connected to the internal cutting unit (2). For this 1 sheet drawings - 15 -