JPS6156824B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In order to create a pattern program for electronic control of a flat flat knitting machine, the present invention optically converts a multicolor primary pattern using a photosensor that responds to reflected light from the multicolor primary pattern. The present invention relates to an apparatus for scanning and reading data information into a store.

In known devices for creating pattern programs for electronic control of flat flat knitting machines, pattern data recorded on a pictorial pattern draft sheet is manually entered into a store, and the data is further processed to create a technical pattern draft sheet. is being produced. This manual input requires more than half of the total time required for the pattern creation process. In addition to this,
The manual input of pattern data is as prone to errors as the input of other data necessary to control the flatbed knitting machine.

From the specification of West German Patent No. 1635970, the original pattern is optically scanned by guiding a photoelectric sensor that responds to reflected light from the original pattern in steps for each row of the original pattern, and the signals generated by this scanning are directly transmitted. Devices for further processing to generate pattern program carriers are known. However, this device has the drawbacks of a complicated structure and relatively slow operation. .

The object of the invention is to provide a device of the above-mentioned type which is simple in construction and allows automatic scanning and loading of the original pattern into the store to be achieved at high speed.

The present invention provides data information by optically scanning a multicolor primary pattern with a photosensitive head responsive to reflected light from the multicolor primary pattern in order to create a pattern program for electronic control of a flat flat knitting machine. In the device for loading into a store, the sensing head is mounted on a carriage which can automatically move in steps only along the length of the original pattern over the original pattern; There is at least one row of photodiodes extending across the width, each photodiode being associated with a light guide for dot-wise illuminating the original pattern and with another light guide for picking up reflected light from the original pattern. , characterized in that the light guides for point illumination are connected to a common light guide guiding light from a single light source.

According to the device configured as described above, data information of a multicolored original pattern such as a picture design draft sheet or an original knitted piece can be automatically, quickly, and reliably read into the store from the original pattern fixed to the device. In addition, the contents of the store can be easily further processed to produce technical pattern draft sheets necessary for controlling an electronic flat knitting machine.

Since each photodiode is associated with a light guide which illuminates each area of the original pattern scanned with it in a dotted manner and a light guide which picks up the reflected light from each area, the device allows in particular color information to be detected. Particularly high-resolution data information can be obtained by measuring different gray values of the reflected light corresponding to different colors in the determination of .

Three rows of photodiodes are arranged in parallel to each other,
A magenta filter, a cyan filter, and a yellow filter can be provided in front of each photodiode row. In such a configuration, the determination of color information is accomplished by an additive method.

Preferably, each photodiode column has between 256 and 1024 photodiodes.

In another preferred embodiment of the device according to the invention, the store is connected to a microprocessor, in which the data information is converted into data for the production of a technical pattern draft after scanning each row of the original pattern or after scanning the entire original pattern. Configure it to do so. By using a microprocessor, it is easy to take into account and process other control data required for the production of pattern programs or technical pattern drafts.

Preferably, the device according to the invention is provided with terminals for connecting a printer and/or a video display device. The printer and/or video display device can visually monitor the automatic scanning and reading process, as the printer and/or video display device can play back the original pattern stored in the store during or after reading the data information from the original pattern. be able to.

Furthermore, the store can be connected to a microprocessor so that the raster size of the stored data can be varied depending on the stitch gauge, the selected gauge of the knitting pieces and the knitting material used.

The invention will be explained with reference to the drawings.

FIG. 1 shows an example of an automatic scanning reading device of the present invention, which includes a base housing 1 and a working plane 2.
A multicolored original pattern, such as a colored picture design draft sheet or an original knitted piece, is placed on the working plane 2 and fixed in a predetermined position. The carriage 4 contains one or more rows of photodiodes extending in a direction transverse to the width of the original pattern 3. The carriage 4 also has a built-in device for illuminating the original pattern 3, and moves stepwise along the length of the original pattern 3 in the direction indicated by arrow A. Contained within the housing 1 is a store for receiving data information generated by the photodiode array from the original pattern 3, and a microprocessor for further processing this stored data information. A printer and/or a video display device are connected to terminals 5 and 6.

FIG. 2 diagrammatically shows the arrangement of a row of photodiodes and the structure of a lighting device for point illumination. Preferably, the photodiode array includes between 256 and 1024 photodiodes 7. These photodiodes are connected to a data information store by suitable circuitry. A light guide 8 is associated with each photodiode 7 to illuminate the original pattern 3 in a dotted manner, and a light guide 9 is associated with each photodiode 7 to illuminate the original pattern 3 in a dotted manner.
Pick up the light reflected from. light guide 8
is connected to a common light guide 10 that propagates light from a light source 11.

With this configuration, the original pattern 3 is illuminated with a point light source, and the gray level of the reflected light is measured by the photodiode 7, thereby making it possible to detect up to six different colors. For example, 64 bits can be used for the gray level analysis of the photodiode 7.

FIG. 3 shows an arrangement of three adjacent photodiode rows. Each of these photodiode rows has a suitable filter, namely a magenta (red) filter 12, a cyan (blue) filter 13 and a yellow (yellow) filter 14, which filters are arranged between the light guide 9 and the photodiode 7. .
In this example, color information is determined using an additive color method.

[Brief explanation of the drawing]

1 is a perspective view of an apparatus according to the invention comprising a carriage movable over an original pattern; FIG. 2 is a diagram showing a photodiode array comprising a light guide for illuminating the original pattern and a light guide for receiving reflected light; FIG. 3 is a diagram showing three photodiode arrays with three types of filters. 1...Base housing, 2...Work plane, 3
...Original pattern, 4...Carring, 5, 6...
Connection terminal, 7... Photodiode, 8, 9... Light guide, 10... Common light guide, 11... Light source, 1
2, 13, 14...Magenta, cyan, yellow filter.

Claims (1)

[Scope of Claims] 1. In order to create a pattern program for the electronic control of a flat flat knitting machine, by means of a light-sensitive head that is movable relative to the multicolor primary pattern and responsive to reflected light from the multicolor primary pattern. A device for reading data information into a store by optically sensing a multicolor original pattern, wherein the sensing head automatically moves in steps above the original pattern only along the length of the original pattern. mounted on a suitable carriage,
A sensing head on the carriage is provided with at least one row of photodiodes extending across the width of the original pattern, each photodiode being associated with a light guide that illuminates the original pattern in a dotted manner and absorbing reflections from the original pattern. Preparation of a pattern program for controlling a flat flat knitting machine, characterized in that the light guide for point illumination is associated with another light guide for picking up light, and the light guide for point illumination is connected to a common light guide for guiding light from a single light source. Device. 2. The apparatus according to claim 1, comprising three photodiode rows arranged parallel to each other over the entire width of the original pattern on the carriage, and a magenta light beam in the reflected optical path of each photodiode row. 1. A pattern program creation device for controlling a flat flat knitting machine, characterized in that a filter, a cyan filter, and a yellow filter are arranged. 3. An apparatus for creating a pattern program for controlling a flat flat knitting machine according to claim 1 or 2, wherein each photodiode row is composed of 256 to 1024 photodiodes. 4. The device according to any one of claims 1 to 3, wherein the store converts the data information into technical pattern draft data after sensing each row of the original pattern or after sensing the entire original pattern. A pattern program creation device for controlling a flat flat knitting machine, characterized in that it is connected to a microprocessor. 5. A pattern program creation device for controlling a flat flat knitting machine, characterized in that the device according to any one of claims 1 to 4 is provided with a terminal for connecting a printer and/or a video display device. 6. The device according to any one of claims 1 to 5, wherein the store changes the size of the raster of stored data according to the stitch gauge, the selected gauge of the knitting stitches, and the knitting material used. 1. A pattern program creation device for controlling a flat flat knitting machine, characterized in that the device is connected to a microprocessor capable of controlling a flat knitting machine.