JPS5950775B2 - Knitting machine forming knitting width display method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to instructions for each contracted stitch for a predetermined forming pattern during knitting on a hand knitting machine, and in particular, forms pattern data is recorded in advance on a recording medium, and this data The present invention relates to a display method and device for determining the display stitch width based on the display method and apparatus.

Conventionally, when forming with a home hand knitting machine, we first knit a gauge, measure the number of stitches and the number of rows, then calculate the pattern drawn on the pattern, and use a knit tracer etc. to determine the number of rows of each knitting. The number of stitches was obtained.

The present invention aims to simplify knitting work by eliminating the need for measuring the number of stitches for each knitting stage using a knit tracer or the like.

In order to achieve the above object, the present invention defines a plurality of points on a molded pattern, approximates the pattern between these points with a function such as a straight line or a circle, and Data representing a function is recorded in advance on a recording medium, and in the forming knitting of a molding pattern, the data representing the function between the points is read, and the knitting width of each knitting is determined by a predetermined calculation from the point to the point. An approximate value is obtained based on the data representing the function between the points and the composition information, and is displayed on the display device.

As a recording medium, a read-only semiconductor storage device RO is used.
M or magnetic tape, a magnetic sheet such as a card, a card for optical detection, or a perforated card can be used, but a magnetic sheet is preferable when a large amount of data is provided, and
In order to easily perform arithmetic processing operations for each formation, a readable/writable semiconductor storage RAM is used together with the magnetic sheet to transfer the data of the molding pattern selected by the operator from the magnetic sheet to the RAM. It is preferable to read data from the RAM.

By making the molding pattern a function that approximately represents the pattern between multiple points, the number of data bits can be significantly reduced compared to the case where all knitting widths for each knitting are recorded in advance on a recording medium. Therefore, the recording capacity of magnetic sheets and semiconductor storage devices can be reduced.

In this way, by approximating the forming pattern with multiple points and a function connecting those points, an approximate value corresponding to the knitting width on the forming pattern is obtained for each knitting based on those data and knitting information. There is a need.

This calculation is a well-known step calculation in pattern approximation in machine tool control (for example, Mechanical Engineering Zensho 1060 Expanded Edition "Numerical Control Machine Tools" 6th Edition, pages 134 to 139,
Written by Kazuto Kenno and Seiemon Inaba, October 30, 1971.
Published by Daidaku Publishing Co., Ltd.

) is preferable.

Next, the present invention will be explained in detail. FIG. 1 shows the appearance of a hand knitting machine implementing the present invention.

A control key 2, a numeric keypad 3, a knitting width display device 4, a knitting display device 5, an operation indicator light 6, and a magnetic card mounting table 7a are installed on the upper surface of the knitting machine main body 1.

A switch 7 such as a micro switch or a reed switch that is controlled to open and close by moving a carriage (not shown).
is installed on the front surface, and a magnetic card reader 8 and an electric circuit board are housed below the top surface of the knitting machine main body 1.

10 indicates organization. This hand knitting machine has a knitting needle of /16 (
The carriage position) is detected and applied to the electric circuit, and the movement of the carriage is detected by the switch means 7, and knitting information of each knitting is applied to the needle selection control mechanism in the knitting machine in response to the knitting needles in the electric circuit. This is a well-known type of hand knitting machine that knits various knittings and patterns.

The knitting width display device 4 is a display unit (display unit) 4R that displays the knitting width on the right side in terms of stitches based on the center line of the knitting piece (for example, front midway, back midway, sleeves, etc.), and displays the left side knitting width. The knitting display device 5 is composed of a display unit 5N that displays knitting from the start of knitting and a display unit 5M that displays the length from the start of knitting in units of n.

When reading data from the magnetic card 9, the magnetic card 9 is inserted into the magnetic card reader 8 as shown in the figure, and the control key 2 is operated.

After reading the data in this way, the knitting pattern represented by the data and the dimensions of each part are displayed in mt years on the back of the magnetic card 9, so the magnetic card 9 is turned over and placed on the mounting table 7a. Please refer to it during the organization work.

In accordance with this display, data on the surface of the magnetic card is recorded in units of n.

Inside the knitting machine body 1, there are an electric circuit that detects the press of a knitting needle and thereby indicates knitting needle rot due to the press, an electric circuit that generates knitting information (for example, a pulse) in response to a change in the state of the switch means 7, a control key 2, Built-in is an electric circuit that generates a control code when the numeric keypad 3 is pressed, and a microcomputer system consisting of RAM, ROM, input/output interface, and central processing unit.

Next, as mentioned above, data on the magnetic card 9 when a magnetic card is used as a recording medium will be explained.

For example, the knitting pattern shown in Figure 2 (Maegoro)
In this case, a pattern is printed on the back of the card 9 with the dotted line section omitted and the length of each outline section expressed in Im, and the data on the front is printed on only a part of the pattern. If it is data, the partial room is also printed,
Identification indicators (infant, child, adult, gender, height, L, S, M, belly band, curve gun, sweater, front midori, back midori, etc.) are printed as necessary.

On the front of the magnetic card 9, in addition to these identification information data and attribute information such as the number of information bytes contained in the card, pattern data in units of u is displayed on the left and right sides of the center line LC. It is magnetically recorded in the form of

To explain the pattern data with reference to the pattern in Figure 2, it is necessary to take multiple points (X marks in Figure 2) on the outline so that it can be approximated by a straight line and a circle, and to place points on the part to be approximated by a circular arc. Then, set the center of the arc (marked with *), and connect those points to
The data is a function between points (in this case, a straight line and a circle), but in the case of a straight line, the function can be expressed by the coordinates of the start and end points and the information that it is a straight line, and in the case of a circle, , the coordinates of the starting point and the ending point, the coordinates of the center of the circular arc, and the following information: 1 circle.

In addition, since each segmented section (the two between the x marks and below is referred to as one operation step) is interconnected to form a closed loop (pattern), when displaying each section, the coordinates of the end point of that section are displayed as data. , the starting point coordinates match the ending point coordinates of the previous section, so data display is omitted.

To summarize the above, the information on the magnetic card 9 is shown in FIG.

The data shown in FIG. 3 is for the molding pattern shown in FIG.

Next, FIG. 4 shows the configuration of the electrical section that reads the data on the magnetic card 9, calculates and displays the knitting width of each knitting based on the command code and knitting information obtained by key and carriage operations. Explain.

The electrical equipment section includes a microcomputer system 12 consisting of a read/write memo IJ RAM 12a, a central processing unit 12b, a read-only memory 12c, and an input/output interface 12d, the aforementioned magnetic card reader 8, a card reader control circuit 11, a buzzer 13, Buzzer drive circuit 14
, display drive circuit 15, 16, indicator light activation circuit 1
7 and each of the above-mentioned devices 2 to 7.

Data read from the card read 8 and needle selection information are read into the RAM 12a as needed, and read out onto the data bus in response to the operation of the keys 2.3, changes in the state of the switch means 7, or knitting needle rot codes.

In addition to various control programs such as a composition input/output program, the ROM 12c reads data read from the magnetic card 9 and read into the RAM 12a, which will be explained later, and also reads out data on changes in the state of the switch means 7. It has a program that calculates the knitting width (in units of ゛ stitches) of each knitting by a stumble step calculation from the knitting information obtained by counting the number of times, and displays the difference between the previous knitting width and the current knitting width on the display device 4.

The buzzer 13 and the buzzer drive circuit 14 are configured to use the buzzer 13 as a collector load of a transistor and apply an energizing signal of the interface 12d to its base, and the card reader 8 has a card feed roller, a motor that drives it, and Are the reduction gear, card guide, and card inserted? Is the card finished or not? The card sensor that determines the information is composed of, for example, a photosensor, a microswitch, and a magnetic head.

The card reader control circuit 11 includes a relay circuit or a transistor circuit that receives a motor drive signal and energizes the reader's motor, and an amplifier that amplifies the reader's read signal.

The display of the functional knitting width of this electrical equipment section is shown in a block diagram as shown in FIG. 5, and the operation is shown in a flowchart as shown in FIG. 6.

Hereinafter, the operator's operations and the corresponding operations of the electrical equipment section will be explained with reference to FIG. 6.

First, the operator knits a certain gauge and a certain width, and then calculates the length and width of the knitted item, because the size of the knitted item varies depending on the thickness and tension of the knitting yarn, even if the shape is the same. Enter the length in U units (■ and ■: Figure 6).

This input is performed using the vertical keys and horizontal keys of the control key 2, the numeric keys of the numeric keypad 3, and the end key of the control key 2.

These numerical values are displayed on the display device 3 each time the end key is pressed.

If the display is incorrect, press the cancel key and perform the above input operation again.

The cancel key of the control key 2 backs up input one by one and cancels the information that has been backed up.

Therefore, if there is an error in previous inputs, the process goes back to the step where the error occurred, cancels it, and performs a new input operation.

This input control program is stored in the uROM 12c.

To explain the outline below, after turning on the power, the ROM12
The program c is in a state where the vertical key is held down, and when the vertical key is pressed, it enters a state where it waits for the numeric keypad 3 to be pressed.

When the numeric keypad 3 is pressed, the data of the pressed key is stored in the work area of the RAM 12a, and it waits until the key 3 is pressed again or the end key is pressed.

During the waiting state, the numbers stored in the work area of the RAM 12a are constantly displayed on the display device 4.

When the end key is pressed, the program converts the contents of the work area of RAMI 2a into a complete CD code, and
Calculate the length per step, that is, the gauge coefficient Yg, and store it in the RAM
The process advances to the step of storing the data at a specific address of 12a (table store).

Once this is completed, the program proceeds to the monitor program, which checks to see if the cancel key has been pressed, and if not, moves on to the next horizontal gauge reading.

However, if it is pressed, the vertical reading routine is repeated (see ■ above).

The operator then presses the horizontal key of the control key 2 and inputs the horizontal measurement value using the numeric keypad 3.

When this is completed, press the end key, and if there is a mistake, press the cancel key and press the horizontal key again (■)
.

Next, the operator confirms that the READY lamp of the operation indicator 6 is lit, and then uses the control key 2 to turn the computer into a card reading state.

Then, insert the magnetic card 9 having the desired molding pattern into the entrance of the card reader 8.

The data on the magnetic card 9 (FIG. 3) is read into a predetermined buffer of the RAM 12a, and this reading is stopped after reading the END signal on the card 9 (■).

Then, the reading is checked (■), and if there is an abnormality, the buzzer 13 sounds to issue a warning.

In this case, the operator inserts the card 9 again into the card reader 8.
0 Insert into the inlet.

After completing this reading, the operator turns the magnetic card 9 over and places it on the mounting table 7a with the molded pattern visible.

When the data reading is completed, the flag TOG = 1 is set (■) to command the calculation of the number of stitches in the knitting, and this causes the calculation of stitches in the left half of the first knitting row of the read data X8R
/Xg (in the pattern of Fig. 2, discharge /Xg if the X component of the a coordinate is discharged) is performed (■), and when this is completed, TOG = 1 is set (■), and then the left side of the first knitting row is Half stitch calculation XSL/X g (bx/Xg if the X component of the b coordinate is bX) is performed (■), and the flag is set to TOG.
= 0 (commands the difference from the number of words in the previous stage).

([phase]). In the first stage, the number of words in the previous stage is zero, so
a X / X g and b
(0).

This display indicates the knitting width (number of stitches) on the right and left sides from the center knitting needle in the first knitting row.

The operator looks at this display, sets the number of knitting stitches, and knits.

Next, while monitoring the change in the state of the switch means 7 (0.0), when the operator scans the carriage (not shown) over the needle bed to knit the first row, the right half of the second row is Stitch calculation is carried out by a step calculation based on the data (FIG. 3) of the right one calculation step (ac) (0).

This drunken walking calculation will be described later.

In the same way, the stitches in the left half of the second row are calculated (0), and from the number of stitches in the right and left second rows obtained in this way, the stitches in the previous row, that is, the right and left stitches in the first row, are calculated. The values obtained by subtracting the respective numbers are displayed on the display units 4R and 4L, respectively.

And the display value (1) of 5N (display unit until then) is 1
The value (0) obtained by adding Yg is displayed on the display unit 5N, and the value obtained by multiplying the display value by Yg (in units of U) is displayed on the display unit 5M.

Then, it is necessary to monitor whether the carriage has traveled for the second formation by checking whether a state change occurs in the switch means 7 (0, [phase]), and when a state change occurs in the switch means 7, the RAM 12
It is checked whether the read data from a is END or not, and if it is not END, it returns to the above-mentioned Stellar movement, and the third
Calculate the number of stitches on the right half of the knitting row.

In this way, each time the carriage is moved by the operator's operation and causes the switch means 7 to change its state, the number of stitches of the next knitting is displayed on the display device 4, and the next crimping and length are displayed on the display device 4. 5.

During this time, each time the displayed value of the composition Figure 3).

When the read data of the RAM 12a becomes END (FIG. 3), the buzzer 13 is energized and the operation indicator light 6 is turned on.
The END indicator light is energized.

This informs the operator that he has finished organizing the pattern represented by the data.

Next, the calculation of the number of stitches of each knitting by the step calculation in step i and σkun will be explained.

Assume that one calculation step section is represented by starting point coordinates (xi, x r ) and ending point coordinates (xe, ye) as shown in Figure 7a, and the calculation unit is n and Yg = 4x.
If i/number of eyes, Xi → xl+1, yi = y
Calculate Fi=xeyi X1ye as i and find Fi≧0
In other words, when the coordinate point Xi-+Xi+1 is on or above the straight line indicated by the dotted line, then Xi→x z
+ 1, yi, and when F<00, that is, Xi → x r
When the coordinate point set as +1 is below the straight line, Xi-+
When the calculations are performed sequentially such as Xi, yi-+yi+1, the locus of the coordinate points sequentially determined in this manner becomes as shown in FIG. 7a.

Therefore, when the increase in yi reaches the gauge number Yg (=4), that is, when the increase corresponds to one stitch in the longitudinal direction, the increase in the X component of the coordinate point is the increase in the next assembled stitch width (right half) or the decrease (when half is on the left).

Since this increase or decrease is in units of 1 rillLN,
Dividing this by the gauge number Xg in the direction gives the number of increased or decreased stitches (displayed in 4R14L).

In this way, at the upper right corner, that is, when yeVi/XeX1≧0, the UxX coordinates are sequentially shifted in the form of +1.

When descending to the right, that is, when ye yi/xe Xi<0, the X coordinate is sequentially shifted in the form of -1 as shown in FIG. 7b.

In this case, in the calculation for the right half, the shift in the X direction between contractions becomes the decrease in the knitting width (Il), and in the calculation for the left half, it becomes the increase.

In this way, the data only includes the start point coordinates, the end point coordinates, and a straight line display, and the knitting width difference between each contraction between them can be determined.

Next, in the case of the circular arc shown in Figure 8, the arc center (xoy
o) to the virtual coordinate origin (0,0), and accordingly, the starting point coordinates are converted to xl-+X1-Xo, yI→yi-yo, and the ending point coordinates are similarly Xe
→Convert to XeX□, ye″'je'lo.

By doing this, the number of digits will be reduced in subsequent calculations.

First, let F i = 0 and then F t =F t
2 Calculate X t + 1, set F i = F r,
Xi→x i + 1, y i−+y.

and update.

Next, if F, ≧0, set XI−+Xi+1, yi → yi,
If Fi<0, xi→Xi, yi→y r + 1,
Fi=F i+2y :, Fi=F: as Xl, y
i is obtained as an output value.

The method of determining the increase in knitting width relative to the number of rows is the same as in the case of straight lines.

Next, FIG. 9 shows a flowchart of Stella Sugi, which calculates the knitting width difference between the previous assembly and the current rope membrane by such straight-line and circular-arc gait calculations, and will be explained.

Incidentally, step (2) is also substantially the same as the flow shown in FIG.

However, in the calculation seconds in the right half and the strategy in the left half, the directions of increase and decrease of stitches are opposite.

When the operator operates the carriage to form the first stage, the switch means 7 is temporarily closed and the BGN
A search is made to see if the S=1 flag is set.

That is, at X, =Xe, a search is made to see if the flag "1" requesting data for the next calculation step (FIG. 3) is set (o).

In the first knitting stage, X, ~Xe, so Xi, yi force direction shift judgment item F of the drunk walking calculation described earlier.

Set it to zero (■).

That is, it is determined that the Xi force direction is first shifted by +1 or -1.

Then, it is necessary to judge whether it is a straight line or a circle from the data of the first calculation step.) In the example shown in Fig. 3, it is a straight line (ac: Fig. 2), so the movement of the origin Hx = 0, HY = 0 Without moving the origin as @), looking at Xe Xi≧0,
In other words, look at whether the straight line is upward to the right or downward to the right (
■), if it is going up to the right, set the soft DX in the X-axis direction to +1 (■: corresponds to Figure 7a), and if it is going down to the right, DX
is set to -1 (■: corresponds to Fig. 7b).

In either case, the shift DY in the y-axis direction is determined to be +1 (■).

If ■ indicates that it is an arc, move the origin to the center of the arc (0), move the starting point of the arc, that is, the coordinates of the end point of the previous calculation step, accordingly (■), and determine whether it is upward to the right or downward to the right. Next to (@) and ■, depending on whether it is a straight line or an arc (0), see that Fi≧0 in either case (0
, ■), In the progress so far, F i = O in ■, so first shift by Dx in the X-axis direction (add or subtract 1)
Then, (■, 0), it is checked whether the X component Xi of the shifted coordinates has reached the end point coordinates Xe (o).

And if it is not the end point coordinate (X component), BGMS
Set the flag to "0" 46a) and shift number n in the y-axis direction.
-Check whether DY has reached the gauge number Yg, that is, whether it has reached the shift number for one step (0), and if it has not reached the number of shifts for one step, step @-■-■...・After 0・
Then, look at F≧0 and continue shifting in the X-axis direction until Fi<0. When Fi<0, shift in the y-axis direction (o
, o) Continue the drunken walking calculation of the starting point coordinates and the ending point coordinates.

During that time, when the shift in the y-axis direction n-DY becomes the number of knots Yg for one knitting row, the corresponding shift in the X direction is divided by Output as the difference from the knitting width of the next knitting.

This means that the number of increase/decrease numbers for the right half of the second stage has been obtained (48a).

Then, the flow moves to the next left half, flow 〇, which obtains the number of increases and decreases in the second stage.

In this flow 〇, the number of increases and decreases in the second stage of the left half is determined using a similar flow.

Once the numbers of increase/decrease in the right half and left half of the second row are determined, they are displayed on the display units 4R and 4L, respectively, and the display 5 shows the display representing the second row and the length from the beginning of knitting to the second row. is displayed.

In this way, if knitting is continued while determining the knitting width with reference to the displays on the display units 4R and 4L, the drunk walking calculation will finally reach the end point coordinates in the data of the first calculation step (Fig. 3). ■, ■), the BGNS7 lag is set to "1" (49a).

When this happens, the end point coordinates (Xe, ye) of the first calculation step are taken in through step 47.31 (■).
, look at the TOG flag (Q) 1 to TOG, that is, when the left and right patterns are not closed (the closed position is Uk in Figure 2)
and R, and closing in this way means that one pattern has been completed), check whether the data is END (■), and if it is END, close the END switch ( C3), if it is not END, check whether the left and right end point coordinates of the second calculation step match (0,
■), if they do not match (the pattern does not close even in the second calculation step), use the end point coordinates of the second calculation step, and in the case of a circular arc, the end point coordinates of the first calculation step. The calculation of drunken walking and the number of increases and decreases on the left and right sides of each formation are displayed.

In this way, the calculation steps are updated one after another, that is, the end point coordinates are updated, and the number of increases and decreases for each composition is displayed in conjunction with the composition.

Then, when the left and right end point coordinates match, the buzzer 13 is energized, the lamp is energized to light up (@), and the TOG flag is set to "1" (Q).

When the drunk walking calculation for this calculation step is completed, that is, when the formation for this calculation step is completed, the judgment of O becomes YES, so the TOG flag is set to 0 and the left and right patterns are reset to a state where they are not closed, and (e) , reads the horizontal width (mw) data of the first knitting row (m-1 in Figure 2) of the next pattern, divides these by Xg, and displays the number of knitting width stitches (equal to the number of increase/decrease stitches) on the display device 4. ■).

Move to flow 〇.

The END switch is closed regardless of whether the data end occurs before or after the left and right end point coordinates match (G).
Next, when the switch means 7 is closed, the buzzer 13 and the end indicator lamp 6 are energized through 0 (FIG. 6).

Therefore, the operator determines that the knitting for one magnetic card has been completed, and when the entire pattern is displayed on the card, the operator concludes the knitting as having finished knitting the entire pattern, When only part of a pattern is displayed, the continuation text is displayed.
The card reader 8 reads the magnetic card having the following information, and the organization continues in the same way.

If the knitting of a pattern recorded on one magnetic card is interrupted in the middle of knitting and the power is turned off, when continuing the knitting next time, the operator must press the control key after reading the same magnetic card again. Press the advance stage key, then enter the formation start stage using the numeric keypad 3, and press the end key.

This reads the feed stage set ([phase]) and determines if it is a blank feed. The judgment (@) becomes YES, the input knitting start row number is set (O), and the left and right increase/decrease number power [phase] of each knitting starting from the first knitting row is calculated sequentially according to the store opening (■ ,
(2) When the predetermined number of stages is reached, (2) the process moves to flow 0 to calculate the number of increments and decreases in the next stage.

From this point on, the progress of the drunk walking calculation is performed in synchronization with the change in the state of the switch means 7.

In other words, progress is made by the formation of each formation by carriages (
[phase]).

The above explanation assumes that the molding pattern is, for example, the shape shown in Figure 2.
The y-axis is taken parallel to the center line Lc, and the y-axis is taken at right angles thereto, and the knitting is performed sequentially from the bottom (a-b) to the top (vertical knitting).

On the other hand, if the flat knitting command key of control key 2 is pressed, this is read and (0) Is it flat knitting? The judgment is Y
It becomes ES (@), and the data in the RAM 12a is changed to the y-axis and the y-axis replaced (@).

In this knitting, the number of left and right increase/decrease stitches is displayed on the display device 4 with the stitch direction parallel to the center line Lc, resulting in flat knitting.

In the above explanation, the parts related to the gist of the present invention have been explained in detail, but the program stored in the ROM 12C and the temporary R
The data stored in the AM 12a is not limited to the above-mentioned data, but also programs and data for pattern knitting control and pattern change control, or programs and data that are desirable to be added to the fine knitting machine.

For example, when inserting a special stitch (such as a braided stitch) into a regular stitch (flat stitch), a program is required to input and set the position in advance, and a buzzer or indicator light is activated when the rope membrane and stitches come to that position. You can add more programs to control the size of the pattern, or add a program to adjust the actual formation size by multiplying the length of the pattern by a coefficient and selecting that coefficient by setting a multiplier coefficient even for the same pattern. If the information read by the card reader differs from the attribute information of the rotor or pattern, it is a good idea to add a program to energize a buzzer or indicator light.

Furthermore, the algebraic calculation circuit that performs the drunken walking calculation is already publicly known (for example, described in the aforementioned book "Numerically Controlled Machine Tools"), so the aforementioned drunken walking calculation can be performed separately from the computer system 12. You can also do it.

As described above, in the present invention, the molding pattern is expressed by a plurality of points and a function between the points (for example, a straight line and a circle), and the knitting width between the points is determined by approximate calculation, so it is recorded on a recording medium such as a magnetic card. The amount of data becomes smaller.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the main parts of an embodiment of the present invention, Fig. 2 is a plan view showing the molding pattern, Fig. 3 is a plan view showing the breakdown of data on the magnetic card, and Fig. 4 is the top view showing the details of the data on the magnetic card. FIG. 5 is a block diagram showing the configuration of the electrical equipment built into the hand knitting machine shown in the figure. FIG. 5 is a block diagram showing the functions of the microcomputer system 120 shown in FIG. 4. FIG. 6 is a block diagram showing the main flow of knitting width display. Flowcharts FIGS. 7a, 7b, and 8 are graphs each showing one aspect of the drunk walking calculation, and FIG. 9 is a flowchart showing details of one block of flow 0 shown in FIG. 6. 1... Hand knitting machine body, 2... Control key,
3...Numeric keypad, 4.5...Display device, 6...Indicator light, 7...Switch means, 8...Card reader , 9... Magnetic card, 10... Needle bed.

Claims (1)

[Claims] 1. A method of determining a plurality of points on a molded pattern, approximating the pattern between those points with a function, and permanently or semi-permanently recording data representing those points and the function between the points on a recording medium. ,
In the molding of the molding pattern, the data representing the points and the functions between the points are read, the knitting width of each contraction between the points is determined as an approximate value using the function, and this is displayed on the display device for each contraction. How to display the formed knitting width of the knitting machine. 2. A method for displaying a formed knitting width of a knitting machine according to claim 1, wherein the approximate value is determined by a step calculation. 3. A method for displaying formed knitting width on a knitting machine according to claim 1, wherein the recording medium is a magnetic sheet, the data is read into a semiconductor storage device, and then sequentially read out from the semiconductor storage device. 4. A method for displaying a formed knitting width of a knitting machine according to claim 3, wherein a visible image of a formed pattern whose data is recorded in advance on a magnetic sheet is recorded. 5. Claims 1, 2, 3, or 4 in which the indication for each contraction of the molding pattern is the difference between the knitting width of the previous row and the knitting width of the contraction to be knitted this time. The method of displaying the formed knitting width of the knitting machine as described. 6 A recording medium that records data representing functions between multiple points on the molding pattern, means for reading the data on this recording medium, operating means for inputting knitting information from outside the knitting machine, and for each contraction. A formed knitting width display device for a knitting machine, comprising means for generating assembly progress information, a calculation device for calculating an approximate value of a knitting width from the assembly progress information and the data, and a display device for displaying the calculation result. 7 The recording medium is a magnetic sheet and a semiconductor storage device capable of reading and writing, the means for reading data is a magnetic reproducing device and a semiconductor memory read/write electric circuit, and the arithmetic unit is a central processing unit and a device for writing data from the magnetic sheet to the semiconductor storage device. 7. A formed knitting width display device for a knitting machine according to claim 6, comprising a semiconductor storage device storing a control program and a program for reading data from the semiconductor storage device and calculating an approximate value of the knitting width. 8. A formed knitting width display device for a knitting machine according to claim 7, wherein the program for calculating the approximate value is a program for calculating a drunken walk. 9. The forming knitting machine of the knitting machine according to claim 7, wherein the program for calculating the approximate value includes a program for multiplying the approximate value by a conversion coefficient between the number of stitches and the braid length. Width indicator. 10 The semiconductor storage device storing the program further includes a program for displaying the difference between the previous knitting width and the current knitting width, and displays the difference. The molded knitting width display device according to item 7, item 8, or item 9.