DE3108353A1 - Automatic sewing machine pattern control - Google Patents

Abstract

Pattern data for the automatic sewing machine allows manual selection of at least two blocks of pattern information units from one store, to be transferred into a second store to be held in the sequence of input. The second manual control uses the values of the temporarily held data to give modified position data to be used as control signals to execute the pattern, coordinated in time with the needle movement. The system allows patterns to be built up, to create letters or symbols and the like, giving easy adjustment for positioning and spacing. It also allows a positive stop action in the event of a thread break, and return the needle and fabric to the position where the thread broke to pick up the pattern.

Description

The invention relates to a monogram or embroidery sewing machine for the automatic formation of an embroidery or of stitch patterns on different types of work pieces, such as shirts, handkerchiefs, towels, etc., on the basis of pattern information that in memory devices for storing pattern information corresponding to initials, symbols or others Patterns are stored. In particular, the invention relates to an automatic sewing machine which includes various modified patterns or different combination patterns according to the pattern information stored in the storage means.

As sewing machines = of this type, many were already automatic proposed according to the prior art, in which pattern information stored in storage devices, such as cams, Paper punched strips, etc. are stored, can easily be played back. In US-PS 2,624,302 there is a monogram machine described, which can form patterns of different sizes from a stencil, which pattern information stores according to a desired pattern. In US-PS 4,116,144 and US-PS 4,122,786 each is an automatic, electronic sewing machine described in which digital pattern information stored in a static memory are stored, are temporarily stored in a dynamic memory and part of the digital pattern information is modified by modifying means so that patterns of different pattern widths can be formed; the second patent describes an automatic electronic sewing machine in which a variety of Pieces of pattern information from a plurality of pieces of pattern information stored in a storage device are stored, can be selected in order to subsequently form new combination patterns.

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* · When a combination stitch pattern is used on these well-known sewing machines from two or more uniform stitch patterns, such as letters, symbols or other patterns to be shaped on a workpiece is to change the size of the individual unit stitch patterns or the spacing not possible between individual uniform stitch patterns. To form a stitch pattern on a workpiece, in which the size of only one of the standard stitch patterns differs from the others or the size of only one distance between the standard stitch patterns differs from the rest, it is necessary in these known machines to select a suitable one Storage device, such as a template or a punched tape for the new combination pattern, accordingly to prepare for these special requirements, so that a time-consuming work is required, and an enormous one Space required for storing the stencils and the punched tape results. Another problem with these loads is |

known machines is that a malfunction in the |

Sewing process, like a thread break, the needle in a little \

distant position from the one at which the thread break actually occurred, since the machine cannot stop at the same time as the malfunction occurs. Once the problem has been handled in an appropriate manner, the operator must perform, when the fault actually occurred manually back the needle to the site \ when the '

The sewing process is resumed, and the storage device, such as the templates or paper tapes, must also can be manually returned to the position at which the fault occurred. For the exact execution of this Operations are required a lot of time, so that the machine performance deteriorates.

The main object of the invention is thus to provide an automatic sewing machine which, when formed a combination stitch pattern of individual unit stitch patterns of initials, symbols or other patterns

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on a workpiece, can form a desired combination pattern in which the size of each unit stitch pattern and / or each separation between two adjacent unit stitch patterns is easily set or arbitrarily changeable.

Another object of the invention is to provide an automatic sewing machine which when it occurs a malfunction, such as a thread breakage in the course of the sewing process and a related stoppage of the Drive motor is easy to return the needle to the position at which the thread break actually occurred and in which this return to resume sewing is performed accurately.

To achieve these goals, a sewing machine according to the invention is provided with memory devices, the multiple blocks of unit pattern information corresponding to respective unit stitch patterns of initials, symbols or other patterns are stored, with first hand-operated devices for the selective designation of a combined unit pattern information, i.e., combination pattern information corresponding to a desired combination pattern from the unit pattern information in the storage device as well as with a second hand-operated device for the arbitrary determination of the individual Size of each unit pattern that is on the workpiece based on each unit pattern information is formed and / or the distance between two adjacent unit stitch patterns to be formed. The selective combination pattern information determined by the first hand-operated device is controlled by control means on the basis of the determined value due to the operation the second hand-operated device intended to drive the drive mechanism for driving the stitch forming

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device to control so that the desired combination pattern can be formed. Different from the conventional one Method in which specified pattern information is stored in memory devices to form a combination pattern are played on a workpiece, the unit stitch pattern and the distance between the unit patterns of a predetermined size and length are stored a desired combination pattern can be easily and promptly according to the invention on the workpiece be shaped by the hand-operated device arbitrarily changing the individual size of each unit pattern and / or the individual distance between the unit stitch patterns for each formation process different Combination stitch patterns can be designated. Through this

s.

can be an actual storage device such as stencils or strips of paper for storing combination pattern information corresponding to each desired combination pattern can be omitted so that the required storage capacity is drastically reduced. The downsizing of the maintenance required space of the memory device and easy access to form desired combination stitch patterns can be effectively achieved according to the invention.

Another advantage of the sewing machine according to the invention is that it is provided with a time pulse _{signal generating device f} to generate a timer signal which is different from the synchronization signal which is generated synchronously with the arm shaft, as well as with a selection device which selectively a first operating mode to carry out the usual sewing operation on the basis of the synchronization signal and a second mode of operation for changing the relative position between the needle and the workpiece on the basis of the timer pulse signal, with no vertical reciprocation of the needle taking place,

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so that when a thread break occurs in the course of the usual sewing process according to the first mode of operation the machine operation is switched to the second operating mode, in which the workpiece is relative to the needle is moved to the position in which the thread break actually occurred before the sewing process in the first Operating mode is auigenomrnen again.

In this way, when an emergency signal is generated, for example with regard to the thread breakage in the course of ordinary sewing, the workpiece easily and accurately from the position in which it is actually stopped was to return to the position at which the thread breakage took place - so that the sewing performance is considerable is improved.

The invention is explained in more detail below, for example with reference to the drawing; it shows:

Fig. 1 is a perspective view of an Aus

management example of an automatic industrial sewing machine according to the Invention;

Fig. 2 is a view of a keypad and a

Display panel on a controller for use with the sewing machine;

3A and 3B in the assembled state according to FIG.

a block diagram of an electrical circuit of the control device;

4 shows the addresses of the elements

or devices in the electrical circuit;

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* Fig. 5 shows the content of a data

bank of a read-only memory (ROM) included in the circuit;

6 to 9 representations of registers in an in

read-write memory (RAM) contained in the circuit;

10 to 15 are schematic representations for explanation

of design data stored in the database and of embroidery or stitch patterns, which are shaped according to the data;

16 is a plan view of a position of a workpiece or an embroidery frame of the machine with respect to a needle of the machine in setting an area within which the frame can move;

17 to 21 are schematic representations for explanation

the "layout" data used for the machine;

22A, 22B and 22C in the assembled state according to

Fig. 39 is a flow chart showing a main routine of a control program of the machine;

23 is a flow chart of a SHIFT KEY (shift key

Key) routine of the control program;

Fig. 24 is a flow chart of an AREA KEY routine of the control program;

Fig. 25 is a flow diagram of a LOAD KEY -

Routine of control programs;

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Fig. 26 is a flow diagram of a CAT KEY (catalog key) -Routine of the control program;

Fig. 27 is a flow diagram of an R SHIFT KEY. -Routine of the control program;

Fig. 28 is a flowchart of an L SHIFT KEY (left shift key) -Routine of the control program;

29A and 29B in the assembled state according to FIG.

a flow chart of a CTRL KEY (control. , Key) routine of the control program;

Fig. 30 is a flowchart of a PATN KEY routine of the control program;

Fig. 31 is a flow chart of a DATA KEY routine of the control program;

Fig. 32 is a flow chart of a MCHN LOCK (machine lock key) -Routine of the control program;

Fig. 33 is a flowchart of an SGL DATA (single data key) routine of the control program;

Fig. 34 is a flow diagram of an SGL STIT (single stitch key) -Routine of the control program;

Fig. 35 is a flow chart of a JOG KEY routine of the control program;

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Figures 3 6A, 36B, 36C, 3 6D, 3 6E and 3 6F in composite

State according to FIG. 41 a SEW KEY (sewing button) routine the control program;

37A, 37B and 37C in the assembled state as in FIG

Fig. 42 shows an RTN KEY (return key) routine of the control program;

Fig. 38 is an illustration of the manner in which

3A and 3B are to be assembled;

39 is an illustration of the manner in which FIG

22A, 22B and 22C are to be composed;

Fig. 40 is an illustration of the manner in which

the die.Fig. 29A and 29B are to be assembled;

Fig. 41 is an illustration of the manner in which

36A, 36B, 36C, 36D, 36E and 36F are to be composed; and

FIG. 42 is an illustration of the manner in which FIG

37A, 37B and 37C are to be composed.

1 shows an industrial sewing machine with a machine frame attached to a machine table 1 shown, which consists of a bed 2a and an arm 2b. The bed 2a is only provided with a throat plate 3, which has a needle opening 3a almost in its center. At the bottom End of the arm 2b, a needle bar 5 is provided, which holds a needle 4 and with a swing arm 6 via a

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Needle bar connecting pin 5a is connected while on a front side of the arm 2b, an adjusting mechanism 7 that adjusts the swing amount of the swing arm 6, and a first pulse motor 8 is provided which is operatively connected to the adjustment mechanism 7, to set the amount of vibration or deflection. With this arrangement, the needle 4 forms in cooperation with a loop receiver (not shown) built into the machine frame 2 zigzag locking stitches in Longitudinal direction (see arrow B) on a workpiece 9, through the vertical back and forth movement of the needle bar 5 due to a rotating action of an arm shaft (not shown) and a swing actuation of the swing arm 6 (in the direction indicated by arrows B).

At a rear part of an upper surface of the machine table 1, a pair of racks 10 and 11 are attached, which are arranged at a predetermined distance in the longitudinal direction and by means of a plurality of screws on Table 1 are attached. A feed screw 12 and a rotation transmitting shaft 13 are rotatable on their two ends held by the mounting brackets 10 and 11 so that they are parallel to the upper surface of the therebetween Machine table 1 extend. The assembly stand 10 is provided with a second pulse motor 14, which the feed screw spindle 12 drives through a transmission system; the other bracket 11 is provided with a third pulse motor 15, which drives the rotation-transmitting shaft 13.

The feed screw or lead screw 12 is in engagement with a rear mounting part 16a of a movable unit 16, which provides an X-axis movement to a movement of the movable unit in the axial Enable direction of the threaded spindle 12; the movable one Unit 16 comprises guide tubes 16b extending into

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"One to the rotation axes of the feed screw 12 and the rotation transmission shaft 13 extend, as well a front support part 16c- The guide tubes 16b ■ on the movable unit 16 carry another movable Unit 18 that provides Y-axis movement so that the movable unit 18 is in the axial direction of the Can slide pipes; the movable unit 18 is attached to a pair of connecting wires 17, which are connected to the rotation-transmitting shaft 1.3. One made of polyacetal or other synthetic resin materials Embroidery frame 19 includes an attachment portion 19a, on which the frame 19 on the movable Unit 18 is attached, as well as an annular work-

[piece holding portion 19b, on part of its circumference is interrupted to form a radial opening, a clamping screw 19c and an inner embroidery frame 20, which is fitted in the workpiece holding portion 19b and cooperates with this to hold the workpiece 9. Thus, the embroidery frame 19 in the longitudinal direction (along the X-axis indicated by the arrows X) by rotating the second pulse motor 14 via the feed screw spindle 12, the movable unit 16, etc. are moved,

'and in the transverse direction perpendicular to the X-axis direction (along the Y-axis indicated by the arrows Y) by a rotating action of the third pulse motor 15 the rotation transmitting shaft 13, the connecting wires 17, the movable unit 18, etc.

On a front side of the machine table 1 are a power supply on switch 21, a power supply off switch 22, an embroidery start switch 23, and a Emergency stop switch 24 is arranged. At a point near the machine table 1, a control device 25 is attached, which is connected to a cable 26 via which signals for driving a main motor 74a (Fig. 3) for driving the arm shaft (not shown) in the machine body

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2, and to drive the first, second and third pulse motors 8, 14 and 15 are transmitted from the control device 25. The control device 25 has a programmer Keypad 27 which is used to enter data necessary to form an intended embroidery or stitching pattern on the workpiece 9 are required, as well as a display panel 28 which displays data as a result the programming operations can be obtained via the keypad or keyboard 27.

In Fig. 2 is the display board 28 and the programming keyboard 27, which has the following elements in its right-hand part: a plurality of sliding keys 29 which, when depressed, generate signals to drive the second and third pulse motors 14 and 15, so that the embroidery frame 19 is along the X and Y axes and along a straight line at 45 degrees to both the X and Y axes. One RLS button 30 for activating the sliding buttons 29, if they are locked when the embroidery frame 19 is off moved out a predetermined range of motion; a RST button 31 for resetting control circuits the control device 25; an RTN button 32 for returning the frame 19 to its predetermined position for the In the event that the control device in the course of an embroidery cycle due to a thread breakage or other malfunctions is switched off; as well as a MCHN LOCK (machine lock) key 33, an SGL DATA (individual data) key 34 and an SGL STIT (single stitch) key 35, which are used to select a desired control mode, in which the sewing machine is controlled by the control device 25. The MCHN LOCK, SGL DATA and SGL STIT buttons 33, 34 and 35 are each provided with light-emitting diodes 33a, 34a and 35a, which the operator via a Inform currently selected control mode.

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In the left central part of the keyboard 27, a group of many data entry keys 3 6 is provided, of which each bears one or more calibrated characters on its face, namely English characters, Numerals and Japanese "katakana" characters and symbols, each of which is used as an embroidery pattern will. The desired types of characters can be selected by pressing the corresponding selection keys 37, 38, 3 9 and 40 are pressed. The design is made in such a way that the English letters and numbers then can be selected if none of the selection buttons are activated. Before an English letter or number key is pressed, a SHIFT L key 41 or a SHIFT S key 4 2 is operated to select a size of the character. In addition to the group of data entry keys 3 6, a SPACE key 43 is provided to set a distance between the to deliver characters selected by the keys 3 6, as well as a CR / LF key 44 to move the carriage to the start of a traced back to new line of characters.

The following program command keys are arranged in the upper left part of the keyboard 27: an AREA key 45 to set a range within which the embroidery frame 19 holding the workpiece 9 continues without interference the needle 41 can be moved; an ENTER key 46 to terminate a particular program operation to command or indicate the end of the data input command code; a CTRL (control) key 47 to initiate to command the various programming instruction codes; one PATN (pattern) key 48 to display a block of unit pattern information corresponding to respective Chinese characters or other special characters stored in a memory device are pre-stored to? oiqf> n; fine PAUSE button 39, to execute a command during a programming process input to temporarily the main drive motor 74a after

Completion of a stitching pattern shaped by the sewing machine to stop; a CAT (catalog) key; 50 to one Command code to enter in the storage device Store combinations of pattern data command codes of frequently used characters; and a LOAD (Load) key 51 to input an instruction code that loads the combination pattern data loaded by the CAT key entered. On the right side of the CAT key 50, slide display keys 52 and 53 are arranged to to move one digit to the left or to the right, with the data on a later described, on the Display panel 28 provided display element are shown. The programming keyboard 27 also includes a DEL (delete) key 54, which is used to delete only the data which is via one of the previously explained data entry keys was entered if this key was pressed incorrectly, and also a CAN (undo) key 55, which is used to cancel all data entered via any input key, that was pressed before pressing the CAN button.

The display panel 28 includes the following elements: a 16-digit dot matrix display 56 showing the information provided by a Displays data entered by the operator through the data entry keys 36 and the program command keys; one 2-digit 7-segment display 57, which numerical "arrangement" data represents that specify a direction and other factors of arrangement of unit stitch patterns, such as letters and symbols entered using the command keys; also a numeric display 58, which displays "spacing" numeric data indicating a spacing between the unit stitch patterns of letters and symbols specified; a numeric display 59 which displays "mirror" numerical data representing the symmetrical Instructing displacement of an operator selected embroidery pattern; a number display 60, wulchr.

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indicates the numerical "size" data indicating a size of a unit stitch pattern selected by the operator specify; a numeric display 61 which displays "latitude" numeric data indicating a desired Ratio of a pre-stored unit stitch pattern (letter or symbol) -width (amount of deflection of the needle 4 in the B direction) with respect to a standard value; and a numeric display 62, the "number" numeric data indicating the number of stitches corresponding to each stitch zone of the pre-stored embroidery letter or symbol, which is divided into a plurality of stitch zones, in order to display its unit pattern information to form is intended.

Referring now to the flow chart of Fig. 3, the arrangement of the control circuits of the control apparatus will now be explained described according to the invention. A CPU 63, that is, a central processing unit, has 16-bit address signal output terminals ADS on, 8-bit data signal and instruction code signal input / output terminals DBO to DB7, an interrupt input connection INT, etc., the input / output connections DBO to DB7 via a data bus 64 with a RAM 65 (memory with random access) and a ROM 66 (read-only memory) , a PIT 67 (programmable interval timer) and an I / O IF (input / output interface) are connected, while the address signal output connections ADS via an address bus line 69 with an address decoder 70 are connected. Outputs of the address decoder 70 are connected to a chip select connection CS and / or address connections ADO to AD11 are connected by peripheral devices such as RAM 65, ROM 66, PIT 67 and I / O IF 68, thereby making the Addresses of these peripheral devices are assigned (as shown in Fig. 4). With the input / output connectors dos I / O IF 68 are the following elements

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connected: first, second and third driver circuits 71, 72 and 73 for driving the first, second and third Pulse motor 8, 14 or 15; a main drive circuit 74 for driving the main drive motor 74a and stopping the needle 4 in its fixed position; a position detector 75, which is a reference zero position of the first Pulse motor 8 monitored; a keyboard control circuit 76, which key code signals corresponding to the individual Keys of the keypad 27 generated a display control circuit 77 for controlling each display element of the Display board 28; and the embroidery start switch 23. The aforementioned emergency stop switch 24 is connected to the connection INT the CPU 63 connected.

The CPU 63, the RAM 65, the ROM 66, the PIT 67 and the I / O IF 68 together form a computer with a stored program, the input and output devices connected to the I / O IF 68 corresponding to FIGS instruction codes pre-stored in ROM 66 are controlled. Signals for controlling the input and output devices connected to the RAM 65, ROM 66, PIT 67 and I / O IF 68 are arranged at respective addresses according to an address map shown in FIG. A memory area extending from the address 0000 to the address 7FFF is assigned to the ROM 66 . In the area from the address 0000 to 1FFF, a control program 66a is stored, which consists of instruction codes such as a main program and various subroutines which control the control device 25, while the area from the address 2000 to 7FFF is determined as a database 66b, in which many blocks of unit pattern information corresponding to various unit embroidery or unit stitch patterns such as letters, symbols and pattern symbols available on the keypad 27 are stored. (See the figure and the following table).

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Tabel

Data in the data Content of each date Bank MASK B data The maximum amount of needle deflection in a unit pattern information MASK X (Y) data The maximum amount of movement a Unit pattern information in the X-axis (Y-axis) direction NON-STITCH A stitchless feed code and (stitch-free) Position data from two vertices FEED data a square stitch zone that immediately after the stitch-free Feed is to be sewn STITCH ZONE A stitch zone code and position (Stitch zone) data data from two vertices one square stitch zone DATA END A code that terminates a (End of data) data Indicating unit pattern information

A memory area is assigned to the RAM 65, which extends from the address 8000 to the address 9FFF, in which Groups of different work registers are provided to control and compute operations of the control device 25 (see FIGS. 6 to 9). The PIT 67 is a memory area from the address COOO to CFFF assigned and the I / O IF 68 is provided with a memory area from the address DOOO to FFFF, the specified Bits are assigned to the output signals from the PIT 67

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as well as control signals to and from the input and output devices, these signals control the first, second and third driver circuits 71, 72 and 73, respectively.

The contents of the pattern data for forming a stitch pattern stored in the database 66b will now be explained with reference to Figs. 5 and 10 to 12 and the table. To prepare unit pattern information, that is, a group of pattern data on a unit stitch pattern such as a "katakana" character ^{n /} f ": first, a reference zero position PO of the pattern is located; the character pattern is then, as in FIG shown, divided into a suitable number of triangular or square stitch zones (SA1, SA2, ... SA8); X and Y coordinate values [ (X1, Y1), (X2, Y2), ... (Xn, Yn) J of each vertex (SD1, SD2, SDn) of these stitch zones are calculated for then the order of forming embroidery stitches of the character pattern is appropriately determined. In this particular order the entire group of data on a given letter pattern is prepared: first, data, the stitch-free feed from the pattern reference zero position PO to the first stitch zone SZ1 (no stitches are formed during this feed movement) as a stitch-free feed date NF1, which includes a code to D date to be referred to as a stitch-free feed date, as well as data of the X and Y coordinates (X1, Y1) and (X2, Y2) of the vertices SD1 and SD2; then, data relating to the stitching zone SA1 is stored as stitching zone data which includes a code for designating the date as stitching zone data, and data of the X and Y coordinates (X3, Y3) and (X4, Y4) of the vertices SD3 and SD4, which appear on lie on the baseline of the rectangular zone SA1; now, a series of data is sequenced on the subsequent stitch zone data-stitch-free-feed data of the pattern in a similar manner

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saved. The triangular stitch zone can be viewed as an extreme or special case of the square stitch zone with two adjacent vertices of the quadrilateral being overlapped to form one vertex. Be in this connection at the first three bytes of the initial address of each block of unit pattern information for the aforesaid Unit stitch pattern three data stored; namely MASK B, MASK X or MASK Y. The data MASK B represent a maximum The amount of deflection of the needle 4 along the B-axis (X-axis) and the data MASK X and MASK Y denote the maximum Amounts of movement along the X and Y axes of the embroidery frame 19 made by the second and third pulse motors is driven.

The working register area in the RAM 65 is at the specified addresses (8000 to 9FFF) with the following Group of working registers 65a provided:

ABS X REG and ABS Y REG store data of moving distances of the embroidery frame 19 from an absolute zero position, described later, along the X or Y axes (register for storing current coordinates of the frame 19);

ABSO X REG and ABSO Y REG save data from X and Y

Coordinates of the frame 19 at which the Formation of a combination of stitch patterns is started (register for storing Coordinates of an embroidery start position);

AREA MODE REG stores data that are circular or

Select rectangular mode for determining the geometry of an area, within the frame 19 of which is movable;

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^'25 "310835

AREA R REG stores numeric data that have a circular shape

permitted range of motion of the frame 19 indicate;

AREA X-y REG stores numeric data that have a rectangular shape indicate the permitted range of motion of the frame 19;

CMND DATA REG sequentially stores various input command codes entered via the keyboard will;

CMND SGN B REG, CMND SGN X REG and CMND SGN Y REG, the

* temporarily at the time each stitch is formed, the direction and angle of rotation of the first, store second and third pulse motors 8, 14 and 15 based on movement commands;

CMND STORED REG records · that these directional and

Angle data has been transferred to the CMND SGN register;

CTRL REG stores data entered via the keyboard

were or standard tax dates;

CTRL KEY REG temporarily saves standard control data or

Control data entered using the keypad;

CYCLE END REG records that the end of a cycle of operation of the machine has been reached;

CYCLE MODE REG stores data indicating an operating mode

of the control device, namely the data input mode or the shift mode ;

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* FILE DATA REG collect control data and command codes from

Letters or symbols entered on the keyboard, i.e. programmed Data;

FILE TABLE REG records addresses of the FILE DATA REG,

on which data is stored;

FILE ADR REG records addresses of the FILE TABLE REG,

entered on the keyboard;

FROM SEW REG records that the control device in

the sewing mode is brought;

ISM REG records an internal synchronization mode;

JOG TIM REG records that a JOG timer is in a

JOG key routine is in operation;

KEYIN DATA REG sequentially stores standard control data

and codes entered on the keyboard;

L ADR KEY REG stores the address of the KEYIN DATA REG,

from which the control data and codes are extracted or read;

L ADR CMND REG records addresses of the CMND DATA REG,

from which data are read;

L ADR SEW REG saves recording addresses of the SEW

DATA REG, from which sewing data are read;

L ADR BANK REG records addresses of database 66b,

read out from the desired sample data

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MCHN LOCK REG records the on-state of the light-emitting diode 33a

(Machine lock mode) on;

MMD REG draws drive conditions for the main drive motor

on;

OUT B REG, OUT X REG and OUT Y REG count the number of

Pulses sent to the first, second and third drive circuits according to the Direction and angle command data are given, which are stored in the CMND SGN B REG, CMND SGN X REG and CMND SGN Y REG are stored;

ON STIT REG records that the controller is currently

controls a sewing process;

ON ALL RTN REG records that frame 19 is about to

returns to an embroidery start position with the RTN key 32 activated and the light-emitting diodes 34a and 35a are both in the switched-off state;

ON RTN REG records that frame 19 is moving backwards

moved while the RTN button 32 is activated and the diodes 34a and 35a turned on are;

PATN KEY REG stores numeric data that are accessed via the

Keyboard entered after the PATN key 48 was pressed;

SEW DATA REG stores data, the positions of stitches,

indicating a stitch pattern;

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S ADR SEW REG stores addresses of SEW DATA REG at which

Stitch position data is stored;

S ADR KEY REG records addresses of KEYIN DATA REG,

in which the codes entered through the keyboard are stored;

S ADR CMND REG records the address of the CMND DATA REG

in which the command codes entered through the keyboard are stored;

SGL DATA REG records when the LEDs 34a are switched on (SGL DATA MODE, single data mode) ;

SGL STIT REG records the on-state of the light-emitting diodes 35a

on (SGL STITCH MODE, single stitch mode);

as well as other registers.

Having described the arrangement of the control device 25 above, the mode of operation of the device will now be described in detail with reference to the flow diagrams of FIGS. 22 to 42. These flow charts show an example of how the Japanese "katakana" letters "-f", "Π" and ¹ W are formed as a combination stitch pattern ¹ IfO y \ " on the workpiece 9 based on various operations of the operator via the keyboard 27. The "arrangement" data specifies the direction of arrangement of the letter patterns successively formed on the workpiece, the "size" data specifies the size of each letter pattern, the "width" data specifies the ratio of the width or thickness of each Letters to a predetermined standard value (amount of deflection of the needle 4), the "mirror" data determine a symmetrical offset of the letters, and

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the "number" data specifies the number of stitches to be formed in each of the divided stitch zones of each letter; all of the foregoing data are designated by predetermined standard control data, while on the other hand the "spacing" data specifying a spacing between letters is determined by data inputted from the keyboard by the operator. First, the standard control data given for this particular embodiment of the control device will be described: As shown in FIGS. 17 to 19, the arrangement data (AX30) specifies the direction of arrangement of the letters "-f", "o" and "* - \" so that the reference point P3 confining at the lower left corner of each letter or receiving rectangle lies on a straight line, ^ which is indicated by an arrow AXO. The size data (size 08) selects 8 mm and 10 mm as the dimensions of each letter, measured along the X and Y axes, respectively. The distance date (distance 10) selects 10 mm as the distance between the letters. The width date (width 1.0) means that the desired ratio of the width to the standard value is 1.0, ie the width of the letters has not changed compared to the standard value. The mirror date (mirror 00) means that there is no symmetrical displacement of the letters. The number date (number 04) allows four stitches to be formed in each of the stitch zones that represent each letter.

When the power supply to the control device 25 is initially turned on, that shown in FIG. 25 starts Control program at a start address 100 and runs sequentially up to a monitoring loop 106 through the following steps: an initiation routine 101, a display routine 102, a B-axis automatic zero return routine 103, a data transfer and display routine 104, and a main address 105.

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Initialization routine 101 is used to initialize the various working registers and the input and output devices. The display routine 102 is provided to keep all display elements of the 16-digit display 56 and the numerical displays 57 to 62 on the display panel and the light-emitting diode 33a, 34a and 35a on the keyboard 27 illuminated for a predetermined time interval. The B-axis automatic zero return routine 103 resets the first pulse motor 8 to its predetermined zero position at which the amount of oscillation or deflection of the needle 4 adjustable by the adjusting mechanism 7 connected to the motor is zero. The data transfer and display routine 104 effects the transfer of the standard control data stored in the KEYIN DATA REG to the CTRL REG and the display of this standard control data on the indicators of the display panel 28. The monitor loop 106 which monitors whether one of the keys has been activated or not, it is then repeated until a key has been pressed. Overall, when the control device 25 is in operation, in this step all display elements of the display units are illuminated by the display routine 102 for the preset period of time; the amount of deflection of the needle 4 is zeroed by the B-axis automatic zero return routine 103 and the letters "AX", "S", etc., which are the command codes for the standard "arrangement", "size" and other control data are displayed on the 16-digit 28-point matrix display 56 and appropriate numerical values of this control data are shown on the numeric indicators 57-62 by means of the data transfer and display routine 104. The letters representing the command codes shown on the dot matrix display 56 are white characters on black as shown in FIG. 2 so that they are distinguishable from the later-described stitch pattern letters which are displayed on the same indicator as black characters on white.

13Ö0S2 / 063S

EPO COPY

310835c

By simultaneously pressing one of the sliding buttons 2 9 and the RLS key 30 in the next step, the control program exits the monitor loop 106 and proceeds sequentially through the following steps: a routine 107 shown in Fig. 35 which is the on-off state the RLS button checked; a JOGA address; a routine 108, which the .Speicherinhalte of the JOG TIM REG checked for high-low (H-L) levels; and a routine 109 which causes the second and third drive circuits 72 and 73 generate pulses to drive the second and third pulse motors 14 and 15. From routine 109 the control program returns to the main address via other routines and the monitor loop 106 becomes again executed repeatedly. In this step, the second and / or the third pulse motor 14 and 15 are consequently through Simultaneous depression of the slide and RLS buttons 29 and 30 started and the workpiece held by the frame 19 9 is moved relative to needle 4. If the buttons 29 and 30 by the operator at this time are held down, the control program executes routine 109 repeatedly after following the same route has taken as described above, so that the second and / or the third driver circuit 72, 73 during deliver drive pulses with a given time interval for a period determined by the JOG TIM REG, the essentially by a command execution time of the is intended for this control device set program, whereby the frame 19 continuously in a selected one Direction is moved. The frame 19 can be moved in this way that a presumed center of the substantially annular inner frame 20 is in alignment with the Center line of the needle 4 is brought, namely in-by the RLS button 30 is used in the correct way and the sliding buttons 29 are selectively operated, which are selected depending on directions of movement, the by the arrows on the buttons are angex.oiqt.

130052/0698

When the area button 45 is pressed after the frame

19 has been moved to the point at which it suspected Center of the substantially annular inner frame

20 with the center of the needle 4, as in FIG. 16 is aligned, the control program jumps from monitor loop 106 to the area key address shown in FIG and runs up a monitor loop 112 in the following steps: a routine 110 that does the AREA MODE REG for a selected mode (circular or rectangular) of the permitted movement area of the frame 19 checked; a routine 111 which causes the dot matrix indicator 56 indicates an alphabetical "R" indicating that the allowable range of motion of the frame 19

"has a circular or round shape; and an AREA 00 address. The monitor loop 112, which is used for monitoring the on-off state of the AREA button is carried out repeatedly. Now is the framework

19 arranged in its absolute zero position.

The operator now calculates a numerical value representing a range within which the frame is located

20 is allowed to move relative to the needle 4, i.e. a distance "Romax" which is a difference value between the distance "Rh" measured from the needle 4 to the inner diameter of the inner frame 20 and one half of a maximum The oscillation path of the needle 4 represents "Bmax" (Romax = Rh - 1/2 Bmax). For example, if the value "Romax" is 10 cm, the operator inputs the data "R", "1" and "0" via the corresponding data input keys 36.

With this data input process via the keys, the control program leaves a routine 113 in the monitor loop 112 and proceeds to a routine 114 that stores the entered numeric data at specified addresses of the AREA REG is used as well as for their display on the dot matrix display 56; then it goes into a routine 115 that ABS X REG and the ABS Y REG clears, after which the program

130052/089 $

eventually returns to main address 105. Accordingly the dot matrix indicator 56 currently represents the area setting data "R1O" in addition to the Standard control data "AX", "S", "D", "W", "M" and "N". Moreover, since the ABS X REG and the ABS Y REG were cleared during the routine 115, the absolute zero position of the frame 19 with respect to the needle 4 is set so that subsequent relative movements of the frame 19 from the absolute zero position of the ABS X REG and the ABS Y REG are monitored in order to prevent the frame 19 from moving beyond the permitted range of motion moved, which is predetermined with respect to the needle 4. The permitted range of movement of the frame is now set.

In the next step, the operator determines an embroidery start position on the one held by the frame 19 Workpiece 9, which is different from the previously established absolute zero position, in particular in Depending on whether one is on. The embroidery pattern to be formed on the workpiece 9 extends in the longitudinal direction (along the X-axis) or in the transverse direction (along the Y-axis); then the operator operates the appropriate one Shift key 29. The control program of the monitor loop 106 now jumps to the JOG (shift) key address (Fig. 35) as described above, from which the control program finally to the main address 105 via the Routines 107a, 107b, 107c and the JOGA addresses that Routines 108 and 109, etc., returns. The routine 107a checks the content of the AREA MODE REG. The routine 107b calculates the sum of the data collected in the ABS X REG

to the power of two, namely / "(ABS X) + (ABS Y) J , and

2 a value "Romax" in the second power, namely (Romax) The routine 107c compares the two obtained values for

Check whether / "(ABS X) ² + (ABS Y) ² ] is greater than

(Romax). Thereafter, the control program repeats the aforementioned routines one after the other when other sliding keys

■ "* 29 must be pressed.

By selectively actuating two or more sliding buttons 29, the frame 19 can move to the embroidery start position are moved, which is best for a special to be embroidered on the workpiece 9 held by the frame Pattern is suitable. If a relative event of the Frame 19 a? Jert from its absolute zero position that is set and stored in the AREA REG, the control program would become the main address return from routine 107c through routine 107d which causes all of the data on the dot matrix indicator 56 flash and therefore neither the second and third pulse motors 14 and 15 are driven, nor the Frame 19 is moved further so that there is no risk of the frame 19 and the needle 4 colliding. Now the frame 19 is arranged at the embroidery start position.

If it is desired, a distance between the ^ and Jhstabenmuster, for example, to 5 mm (distance 05) from deir. To change the value of 10 mm (distance 10) specified by the predetermined standard control data, the operator then successively presses the CTRL key 47, the data entry keys 36 "D", "0" and "5"_; and the ENTER key 46. The control program then jumps from the monitor loop 106 to a CTRL key RcutLnu, which is shown in FIG. 29, via a CTRL key display. With this data entry process, the tol-.end ^ r: routines are executed in sequence before the Ste'iurpr ^ crarr; eventually returns to the main address and the monitor loop 106 repeats again through; oi l \\ <: t. λ \ r <l : -a Routi.no 116, which stores the key code signal ··· r "'- ·: -. · ■: -" in dom KKYIN DATA REH; Rnui. ;;> r. · '- _:. ; . '.. that check the' fast 'actuated after the CTRL key 47;

130052/0698 BATH ORIGINAL

310835:

a CTRL 1 address; a routine 118 which the key code signaie of the keys pressed after the CTRL key 4 7 in the KEYIN DATA REG and the corresponding ones represents numerical data on the dot matrix display 56; routines 119a and 119b contained in KEYIN DATA REG store the key code signals generated by pressing the numeric keys, and these present numerical data on display 56; a routine 120 which, by pressing the ENTER key 4 6 generated key code signals in the KEYIN DATA REG and at the same time stores the numerical data, which by routines 119a and 119b are stored in KEYIN DATA REG were transferred to the CTRL REG; and a

Routine 121 which checks whether the operator's actuation of the above keys is to be changed of the distance control data or other control data such as the arrangement data contradicts the predetermined data.

The key code signals of the operated keys for performing the change in the standard distance control data are consequently stored in sequence in the KEYIN DATA REG and the numerical data entered through these keys are stored in the CTRL REG (FIGS. 6 to 8) instead of the originally stored data; thereby the Letter "D" is displayed on dot matrix display 56 after the unchanged data, i.e., indicator 56 is pointing currently "AX, S, D, W, M, N, R10, D". Furthermore, the numerical value "10", which is shown on the digit display 58 was now changed to "05". The desired change in the distance data is thus completed.

Pressing each of the Japanese "katakana" letter keys 36 "* f", "o" and "y \" to select these letters and to form the combined box embroidery "<ftJ ^ \" on the workpiece 9, jumps: now as next the jamming program from the Monitorsch! .ei ^r c 1Of ₁ /.u ei nor ΠΛΤΛ-'Ρλγ. ι . <■ · .-

address, wio shown in Fig. 31, and the following Routines are executed sequentially before the program returns to monitor loop 106 via the main address: a routine 122 which stores the key code signal of the letter key in the KEYIN DATA REG; a routine .123, which represents the corresponding letter on dot matrix indicator 56; a routine 124 that contains the KEYIN DATA REG transferred to the CMND DATA REG and the CTRL DATA REG; a routine 125 which the unit pattern information corresponding to the keyed in letter corresponds, reads from the database 66b within the ROM 66 and checks whether the movement amounts of the frame 19 in the formation of the letter pattern a \ if of the workpiece 9 are smaller than that previously set in accordance with the above-mentioned control data the values set for the permissible range of motion. The path from monitor loop 106 back to this via the routines explained above are run through every time the three different letter keys printed one after the other, i.e. the control program repeats the execution of the path three times. After repeating this path three times, the Monitor loop 106 executed repeatedly.

Correspondingly, according to FIG. 2, the dot matrix indicator 56 finally shows "AX, S, D, W, M, N, R10, D, * f , Π, ^ V" by executing routine 123 and the Command codes entered by the letter keys are sequentially stored in the KEYIN DATA REG and CMND DATA REG (see Figs. 6 to 8). Moreover, by executing the routine 125, the maximum amounts of the X and Y movements of the frame 19 necessary for the embroidery according to the unit pattern information selected by the letter keys from the database 66b are calculated and when the calculated values are greater than those before to establish the permissible range of motion of the frame

1300B2 / 0691

EPO GOPY

set numeric values, then indicator 56 would flash to notify the operator that that an operator error has occurred. The desired blocks of the unit pattern information are now selected.

If the operator presses the embroidery start switch 23 in this state in order to initiate the embroidery cycle for the formation of the Japanese "Katakana" letter patterns "sf", "Ω" and Vl "on the workpiece, then the control program jumps from the monitor loop 106 to an SEW- (Sewing) address, as shown in FIG. 36, from which the control program runs in the following steps to a routine 131: an SEW OO address 126, a routine 127, which contains the memory contents of the ABS B REG, ABS X REG and ABS Y REG transferred to the corresponding ABSO B REG, ABSO X REG and ABSO Y REG, which are provided to store absolute coordinate data of the embroidery start position along the B, X and Y axes; a routine 128, which stores a start address of the CMND DATA REG in the L ADR CMND REG, which stores an address from which memory contents of the CMND DATA REG are sequentially read; an SEW address 129; and a routine 130 which stores the memory contents of the CMND DATA REG discriminates which is designated by an address stored in the L ADR CMND REG. The routine 131 increases the memory content of the L ADR CMND REG, which sequentially reads out the memory content of the CMND DATA REG. The control program returns from routine 131 to SEW 10 address 129 and runs through a routine 133 via routine 130 and a routine 132, which updates the memory content of the CTRL REG according to the command codes stored in the CMND DATA REG. The routine 133 increases the memory content of the L ADR CMND REG. The control program runs from routine 133 to an SEW 20 address 138 through the following steps: routine 130; a routine 134 which, in the first step, contains pattern data

1300527069a

3103353

reads out which including coordinate data SD1 (X1, Y1), SD2 (X2, Y2) ... SDn (Xn, Yn), the respective stitch zones (as shown in Figs. 12-15) are stored in the database 66b, and accordingly the pattern data command code stored in the CMND DATA REG, then actual stitch positions in the second step SN1, SN2, SN3, SN4 ... SNn according to various Control data, which are stored in the CMND DATA REG, elaborated from the sample data, which in the first step are read out, then sewing data or processed pattern data including position data in the third step calculated to move the frame 19 to the positions SS1, SS2, SS3, SS4 ... SSn to move, as well as deflection or oscillation amounts B1, B2, B3 ... Bn of the needle 4 when the frame in these positions SS1, SS2, SS3, SS4 ... SSn, and then sequentially in the last step the calculated Stores data in the SEW DATA REG shown in Fig. 12; a routine 135 which stores the memory content of the L ADR CMND REG increased; a routine 136 that generates a high level signal in the FROM SEW REG; and a routine 137, which stores a start address of the L ADR SEW REG, which in turn stores an address from the sequential The memory contents of the SEW DATA REG can be read out.

After the routines explained above have been executed, they are stored in the CMND DATA REG entered command code is read out sequentially, starting with one stored at the start address Start command code to code details indicating a distance and the "katakana" letters "<", and the data to move the frame 19 relative to the needle 4 in each Stitch position of the "katakana" letter "-f" of the stitch pattern (the number of pulses for driving the second, third and first pulse motors 14, 15 and Π and the character codes to designate the direction of their rotation) are saved in the SEW DATA REG.

130062/0698

After the control program to SEW 20 address 138, in 36, it advances to a routine 139 which stores the memory contents of the SEW DATA REG reads and discriminates; then it runs to a routine 140, which the memory contents of the L ADR SEW REG increased in order to sequentially read out the next command code stored in SEW DATA REG. Then it returns Control program back to routine 139, from which it goes to SEWF address 141 and on to a routine 145 via the following individual routines: a routine 142 which checks whether there is a high level signal in the MMD REG; a routine 143 which controls the second and third pulse motors 14 and 15 drives to the frame 19 along the X and Y axes "are moved according to the stitch-free conveying data stored in the SEW DATA REG; and a Routine 144, which increases the memory content of the L ADR SEW REG. Routine 145 checks to see if there is a high level signal in the SGL STIT REG is available. The control program now returns to the SEW 20 address 138.

After the above routines have been carried out, the routines stored in the SEW DATA REG become start-free and stitch-free The conveying data is read out and the frame 19 is moved relative to the center point of the needle 4 from the embroidery start position (Pattern reference zero position PO) is moved to a position SS1 as shown in Fig. 16, and although by the second and third pulse motors 14 and 15 according to the stitchless feed data.

Then the control program leaves the SEW 20 address 138 and goes into a routine 151, namely via the following routine Addresses and Routines: routine 139; an SEW S address 14 6; a routine 147 which checks whether a high level signal in the MMD REG which stores data indicating whether a main drive command signal MMD is on

130052/081

Ύ 0}

- 10 -

driver circuit 74 is applied; a routine 148, the drive pulses to the driver circuits 72 and 7 3 is applied to drive the second and third pulse motors 14 and 14 in accordance with the processed pattern data, the are stored in SEW DATA REG; a routine 149 that increases the memory content of the L ADR SEW REG; and a routine 150 which stores the contents of the registers, such as the MCIIN LOCK REG, SGL DATA REG and SGL STIT REG checked. The routine 151 asserts the main motor drive command signal MMD to driver circuit 74. The control program returns from routine 151 to the SEW 20 address return.

After the routines described above have been carried out in the order given, the main drive command signal MMD is applied to the driver circuit 74 to control the operation of the main drive motor according to the first processed stitch data chert in the SEW DATA REG qe.spe i to start. Since the frame 19 with the seamless feed data has been moved to the specified position SS1 at which the first stitch is formed, no drive pulses are applied to the second and third drive circuits 72 and 73 at this time, but a drive pulse signal is applied to the first Driving circuit 71 is applied to adjust the adjusting mechanism 7 so that an amount of deflection of the needle 4, as shown in FIG. 13 shown, B1 is.

In the next step, the control program again leaves SEW 20 address 138 and proceeds to a routine continues through the following addresses and routines: routine 139; the SEWS address 146; routine 147; a routine 152, which is a main motor drive speed signal MOSPD to the main drive circuit 74 after the most suitable Drive speed depending on the number of

130052/0693

Pulses have been calculated to be sent to the second and third Driver circuits 72 and 73 are set up in accordance with the processed pattern data stored in the SEW DATA REG will; a routine 153 that checks whether the Main motor drive speed signal MOSPD for one of four predetermined types of speed signals MOSPD1, 2, 3 and 4 can be adopted; a routine 154, which generates a signal to select that circuit from MOSPD1 to MOSPD4 which has the most suitable speed signal supplies; a routine 155 that checks whether a synchronization signal SYC, which is on a Needle-up signal based on NDLUP from the driver circuit 74 is discharged, through the needle 4 the workpiece 9 upwards, during its vertical reciprocating movement leaves, is compatible with the memory content of an internal synchronization mode register ISM REG; a routine 156, which drive pulses to the first, second and third driver circuits 71, 72 and 73 deliver, according to the next processed stitch data, that are stored in SEW DATA REG; and a routine 157 which stores the memory content of the L ADR SEW REG elevated. The routine 158 checks the memory contents of the SGL STIT REG and the MCHN LOCK REG. The control program returns from routine 158 to the SEW 20 address 138 back.

After the above routines are executed in the order given, a main drive motor speed command signal becomes is applied to the driver circuit 74, in accordance with the information stored in the SEW DATA REG first stitch data processed, and the first stitch will be at the first stitch position SN1 on the workpiece 9 executed in accordance with the first processed stitch data, moreover, the drive pulses are sent to the first, second and third circuits 71, 72 and 7 3, respectively created the second processed design data so that the

1 3 0 0 S 2/0 8 9 a

* · Frame 19 moves from a position SS1, corresponding to the first stitch position SN1 to a position SS2, corresponding to the second stitch position SN2, after the needle 4 the workpiece 9 has moved to a position above the first stitch position SN1 after completion of the first stitch and in this way a swinging movement of the needle 4 and the frame 19 along the X and Y axes is set is moved so that the second stitch is at the second stitch position SN2 on the workpiece by the operation of the first, second and third pulse motors 8, 14 and 15, respectively.

After the step explained above, the control program takes the route via the SEWS address or SEW F address 141 already mentioned, in accordance with the memory content of the SEW DATA REG (stitch or stitchless feed data), which are read out sequentially by routine 139. The procedure mentioned is repeated as often as is specified in the SEW DATA REG. As a result, the frame 19 is moved step by step to the positions SS3, SS4 ... SSn, in accordance with the actual stitch positions SN3, SN4 ... SNn, in accordance with the commands and data stored in the SEW DATA REG required number of stitches is formed on the workpiece; the deflection or. The vibration amount of the needle 4 is set so that the stitches are formed at the positions corresponding to the stitch positions SN3, SN4 ... SNn. Thus, the required number of stitches for forming the "katakana" letter pattern "-f" of the combined embroidery or the combination pattern represented by the letters "4", "CT" and V \ "can be formed.

The control program then leaves the SEW 20 address 138 and advances to a routine 161b via the following routines: routine 139; a routine 159,

130052/0693

which establishes a low peyel signal in the ON STIT REG and FROM SEW REG; a routine 160 which applies a needle stop signal to the driver circuit 74 to stop the needle 4 in a position above the workpiece; and a routine 161a that checks whether there is a high level signal in the SGL STIT REG or SGL DATA REG. The routine 161b applies drive pulses to the second and third drive circuits 72 and 73 in accordance with the distance data of the control data to move the frame 19 to the reference zero position PO of the second letter pattern "Q" . The control program jumps from routine 161b to SEW 10 address 129.

Accordingly, the needle 4 is stopped by the routine 160 at the position above the workpiece after stitching the stitches of the "katakana" letter "Y", and thereafter the distance data is read out by the routine 161b, thereby moving the frame 19 a distance corresponding to the distance data to embroider the next letter "Q".

Thereafter, the stitches of the "Katakana" letter "Π" are formed on the workpiece 9 in the same manner as was done when the stitches of the letter "yf " were embroidered, with the exception that the stitch data for the stitch zones SAn, SAn + 1 ... etc. of the letter "ΰ", which are stored in the SEW DATA REG, now worked out stitch positions SNn - 1, SNn, SNn + 1 ... etc. represent to which the frame 19 is moved, and that the first pulse motor 8 for adjusting an amount of vibration of the needle 4 in forming the pattern according to this processed stitch data is fixed at its zero position, whereby the frame 19 by the second and third pulse motors and 15 without Vibration of the needle 4 is moved so that zigzag stitches are formed on the workpiece 9 as shown in FIG.

130052 / 089S

EPO COPY

After all of the letter patterns "4" , "π" and "y \" have been formed on the workpiece, the control program again returns to the SEW 10 address 129, then runs through routine 130 to routine 162 which sends frame 19 to Moves to a routine 163 which establishes a high level signal in the CYCLE END REG. The control program returns from routine 163 to the main address and the monitor loop 106 is carried out repeatedly.

Accordingly, the frame 19 becomes the embroidery start position returned, i.e. to the reference zero position PO of the first letter pattern after the stitches for all three of the operator programmed letters have been embroidered. It is therefore possible to embroider another cycle to begin when the workpiece 9 is replaced with a new one.

If the X and Y movements of the frame 19 are too great, to be completed while the needle 4 is over the workpiece 9 during the formation of each letter of the Embroidery is located, a routine 164 is executed to to apply a signal to the driver circuit 74 which temporarily stops the needle 4 in a position above the workpiece. The stopped needle 4 is restarted by executing a routine 165 which is sent to the driver circuit 74 outputs a signal to resume operation of the main drive motor. The operation of the main propulsion engine 47a can therefore be interrupted and started again.

Although the standard control data for forming the above-mentioned embroidery of the letters "- /", "CJ" and ¹ Vx "includes the" arrangement "data (AX30) indicating the arrangement of the letters as shown in FIG ca also possible to change this arrangement, as in the

130052/0690

EPO COPY

20 or 21 by changing the "arrangement" data (AX3O) in (AX11) or (AY2O) by operating the keyboard in a manner similar to that for changing the "spacing" described above. "Data from (distance 10) to (distance 05). In other words, changing the "layout" data allows the operator to select any desired reference point (P1, P2 as shown in Fig. 18) as well as a straight line (AX3, AX2 AY-1, AYO .... as shown in FIG. 17) along which the "Katakana" letters "V", "Q" and "y \" are arranged on the workpiece 9, the selected reference points also being placed on this line. It is also possible to select the desired X-axis dimension of each letter in a range from 1 mm to 99 mm by changing the "size" data via the keyboard. The "size" data of the selected dimensions are sequentially stored in the SEW DATA REG by executing routine 134 shown in the flowchart of Fig. 36; the letters are embroidered with the selected size by executing the routines following routine 134,

Although the standard "size" data for the above-mentioned formation of the embroidery "Y D Λ" selects the same size for all three letters, it is possible to enlarge the size of a particular letter such as the letter "Q" alone or to zoom out. In this case, the "size" data indicating a desired smaller or larger size of the letter "O" can be input after the control data of the letter "- /" is completed and before the input of the selection command signal of the letter "£ 7 " he follows. Thereafter, the input of the control data of the letter "s \ " is carried out in the same way as for the letter "-f".

130052 / OS9

Of course, in addition to the "size" data, the other Control data for a specific letter or several letters of an embroidery or a combination pattern be different. Such different control data i

can be used during a series of data entries via the;

Keyboard for each letter can be entered in the same way j as explained above.

Although a specific example of making the embroidery of the combination pattern "-Y £ 7 / V, which consists of the Japanese" katakana "letters " J ", " θ "and " / \ " has been described above, Chinese letters or special Letters or symbols from which the

differ on the data entry keys 36 on the keyboard 27 / (English letters, numbers, "Katakana" letters and symbols), if desired, are embroidered on the workpiece 9, since various blocks of unit pattern information are stored in the database 66b of the ROM 66, which correspond to such particular letters and symbols, one or more of which can be selected from memory bank 66b by actuating the PATN key 48; the formation of these symbols on the workpiece by inputting the control data via appropriate keys takes place in the same way as it was also done for the control data input for the embroidery "/ Ü / \", namely according to the flowchart of FIG. 30, which shows the PATN Key routine shows. The database 66b also stores pattern data corresponding to Japanese "Hiragana" letters, as well as English cursive letters which can be selected by the operator using the selection keys 37, 38 and 39 in conjunction with the SHIFT L and S keys 41 and 4 2 are.

? In the above embroidery front-ana for BiI Duner the "katakana" embroidery "4Q /)", which can Stickereivorrrangs-; ykliis to Hliduny dc >> .Stickerei "AQ -O" au: Λ <· \\ ι Werr: piece can be started by turning the embroidery hard switch

130052/0698 "" "

COPY Λ

is operated, which boim the main drive circuit 74 Pressing it down activates while the LEDs 3 3a, 34a and 35a are on the MCIIN LOCK, SGL DATA and SGL STIT buttons 33, 34 and 35 are all in the off state. When the MCHN LOCK button 33 is pressed and the diode 33a is turned on by executing a routine 166 shown in Fig. 32, however, the control program jumps from SEW key routine 150 (Fig. 36) to SEW 20 address 138 without going to routine 151; therefore, there is no main drive signal applied to the driver circuit 74. The control then follows a loop path to turn return to SEW 20 address 138 via routines 139, 147, 148, and 150; then the control proceeds to routine 148, which operates only the second and third pulse motors 14 and 15, so that the frame 19 can move. When the SGL DATA button 34 is depressed and the diode 3 4a is activated by executing a routine i67 (Fig. 33) is turned on, the control program jumps from routine 161a (Fig. 36) to the main address, and therefore the embroidery cycle becomes temporarily at the end of the formation of the first "katakana" letter "- < "interrupted. When the SGL STIT button 35 is pressed and the diode 35a by executing a routine 169 (Fig. 34) is turned on, the control program returns from routine 145 to the main address and therefore becomes the embroidery cycle is only stopped when the first feed command for the first letter "- /" has been executed is.; if the start switch 23 is pressed in this state, the control program takes a loop path, in turn via routine 150 and routines 170 and 171 to return to the main address, whereby the restarted cycle is stopped again after the first processed stitch data have been executed.

In this embodiment, it is also possible to store various program data in the FILE REG of the RAM 65 including, for example, "R10, D05, / as \",

130052/0698 _r

EPO COPY if)

* · Which designates the permitted range of movement of the frame, the spacing between the letters and the selection of the letters "- <", "£ f" or VV. Specifically, the control program jumps to a CAT key routine (Fig. 26) when the CAT key 50 is pressed, and the programmed data is stored at specified addresses of the FILE REG in the RAM 65 by the execution of the routines 172, etc., saved. When the LOAD key 51 is pressed thereafter, the control program jumps to a LOAD key routine (Fig. 25) and the data stored in the FILE REG are read out by executing the routines 173 and so on. Accordingly, if the operator stores the programmed data for the letter patterns "4", "Π" and "/ \" in the FILE REG by pressing the CAT key after the embroidery cycles are finished, the stored data for the same embroidery can be easily thereby can be recovered that the LOAD key 51 is pressed, even after an embroidery of other letters or symbols on the same or a different workpiece 9 has been formed. This feature eliminates the need to re-enter the programmed data for the first embroidery "/ D Λ" after the programmed data for the second embroidery has been executed.

When any new embroidery pattern or a combination stitch pattern "which is partially different from the combination stitch pattern based on the programmed data recorded in the specified addresses of the FILE REG is to be formed on the workpiece, for example a combination stitch pattern which has only one letter "* /""" from a series of letters "/ & s \" is to be larger than the remaining letters, the operator can easily change the programmed data so that it is adapted to the required combination stitch pattern, that is, by pressing the LOAD key 51 that

⁺ ie: R1O, D05 and "fO / \"

130052/0698

Control program is returned from the LOAD key address (Fig. 28) via routine 173 to the main address. The programmed data for the combination stitch pattern recorded in the FILE REG is read out into the KEYIN DATA REG and an indication "AX, S, D, W, M, N, R1O, D, -f, O, / \ " appears on the dot matrix display 56. as shown in FIG. Thereafter, if the operator repeatedly presses the R shift key 53 three times, the control program is returned to the main address 105 after executing the R shift routine (FIG. 27) three times, so that "AX, S, D, W, M, N, R1O, D "appears. When the operator sequentially presses the CTRL key 47, the English letter "S" key, the "1" key, the "6" key in the group of data entry keys 36 and the ENTER key 46 to set the size of the "katakana" letter "-f" to a desired extent, for example, 16 mm in the X-axis direction 20 mm in the Y-axis direction, the control program proceeds from the monitor loop 106 through the routines 116, as explained above, 117a, 118, 119a, 119b, 120, 121, etc. to finally return to the monitor loop 106 again. Therefore, "AX, S, D, W, M, N, R10, D, S" appears in the dot matrix display 56, and the display in the numerical display 60 changes from "08" to "16". Thereafter, when the L-slide key 52 is pressed once, "AX, S, D, W, M, N, R10, D, S, -f" is displayed on the dot matrix display 56 by the execution of the L-slide routine 28. If the operator then presses the CTRL key 47 and the key for the English letter "S", the "O" key, the "8" key in the group of data input keys 36, and the ENTER key. Key 46 to keep the size of the "Katakana" letters "£ 7" and "/ \" at 8 mm in the X-axis direction and 10 mm in the Y-axis direction (size 08) runs the control program from the monitor lock ■ f o 106 through exactly the same routines as above

130052 / 069S _EP0 COPY Jp

* · Mentioned, to the monitor loop 106. As a result, the display "AX, S, D, W, M, N, R10, D, S, " (ι S "and the display" 16 "appear on the dot matrix display 56) the numerical display 60 changes to "08". Another double press of the L-slide key 52 by the operator produces a display "AX, D, S, W, M, N, R10, S, -f, S, £ 3 , / \ "on the dot matrix display 56 by executing the L-shift routine of FIG.

The maximum amount of movement of the embroidery frame 19 in the direction of the X and Y axes during the formation of the combine stitch pattern were determined by executing routine 125 in calculated in a similar manner as explained above. If the calculated value exceeds the allowable range of motion of the Exceeds the range specified by the area setting (R10) is determined, the dot matrix display 56 flickers to alert the operator of the malfunction of the machine to warn. The partial resizing of the combination stitch pattern is finished in this way.

Pressing the embroidery start switch 23 by the operator in this state enables the sewing machine to form a new combined pattern on the workpiece in a manner similar to that explained above, with only the letter "^ f" having a larger shape (S16) and " O " and W are standard size (S08).

Of course, in addition to the size change explained above, this exemplary embodiment can also be newly compiled Form patterns in which a qowunKchtcrs unity pattern, a space between the desired s 1 ·! Identity patterns Uüw. partly with regard to the sizes "distance", "width" and "Number" can be changed.

13 0 0 5 2/0698 BAD ORiGiNAL

The following description explains the case in which the transmission of drive signals to the main drive circuit 74 and to the driver circuits 71, 72 and 73 of the first, second and third pulse motors due to a thread breakage monitoring signal (BROKEN signal) from a thread breakage detector (not shown) or is interrupted because of an emergency stop signal (EMERGENCY signal) from the emergency stop switch 24; these signals are generated by automatic activation of the detector or by the operation of the switch by the operator during the embroidery cycle to form the above-described embroidery pattern " / O / \".

When the drive signals due to the generation of a BROKEN signal early in the embroidery cycle are stopped and the operator presses the PTN button 32, then the control program jumps from the monitor loop 106 to an RTN key routine (Fig. 37) and runs up to the main address via the following addresses and routines: a routine 174 that checks whether the needle 4 is in a position above the workpiece 9; a routine 175 that checks whether the light-emitting diode 34a or the SGL DATA key 34 or the diode 35a on the SGL STIT key 35 are illuminated; a routine

176 showing the X and Y distances of travel of the frame 19 in its current position to the embroidery start position is calculated based on the X and Y coordinate values of the current position contained in the ABS X REG and ABS Y REG are stored, as well as due to the X and Y coordinate values of the start position, which are in the ABSO X REG and ABSO Y REG are stored; a routine

177, which gives the required number of drive signals to the second and third driver circuits 72 and 73, in accordance with the calculated moving distances, so that the second and third pulse motors 14 and 15 are driven will; an RTN OO address 178; and a routine

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PPO COPY

179, the driver signals to the first driver circuit 71:

sets to the first pulse motor 8 in its zero position i

to drive. From the main address, the control program returns to the monitor loop 106, which is then repeatedly executed will.

Accordingly, the frame 19 is moved to the embroidery start position PO of the letter "■ 4 " by the pulse motors j 14 and 15, and the adjusting mechanism 7 is brought to its zero position so that the amount of deflection of the needle 4 becomes zero. The embroidery cycle can then be restarted from the beginning by the operator by pressing the start switch 23 after threading the needle and removing stitches already formed on the workpiece 9 or by replacing the workpiece with a new one. The frame 19 would go through the routine 174 cannot be brought into the start position if the needle 4 is not above the workpiece, ie below the workpiece when the BROKEN signal is generated the needle 4 has automatically been raised to the position above the workpiece.

If the transmission of the drive signals to the driver circuits is interrupted due to the generation of the BROKEN signal a short time after the start of the formation of the letter "0 " and the RTN key 3 2 is pressed after the SGL DATA key 34 has been pressed, to turn on its light emitting diode 34a, the control program will jump from monitor loop 106 to the RTN key routine and proceed to routine 188 via the following addresses and routines: routines 174 and 175; a routine 180 which checks whether there is a high level signal in the CMND STORED REG; an RTN 20 address 131; a routine 182 which reduces the memory content of the L ADR SEW REG, which stores the addresses of the SEW DATA REG, from the

130052/0698

Ϊ— Ii '■ <**? WW * Sri ''

read out the sewing data or processed pattern data will; a routine 183 which reads the processed pattern data from the addresses specified by the memory contents des L ADR SEW REG are designated and in the CMND SGN B REG, CMND SGN X REG and CMND SGN Y REG driver signals stores which are processed to the first, second and third driver circuits 71, 72 and 73 in accordance with the read out Sample data are created; a routine 184 which the sign of the memory contents of each CMND SGN register reverses; a routine 185 which checks the data read out from the SEW DATA REG; an RTN address 186; and a routine 187 which sends drive signals to the first, second and third drive circuits 71, '72 and 73, respectively the memory content of the respective CMND SGN register. Routine 188 checks to see if diode 35a is on SGL STIT button 35 is illuminated. From routine 188 would control will jump to RTN 20 address 181 and retry walk the same path as r> e wrote above, namely, the loop through routines 182 through 188. If routine 185 found that neither feed nor Stitch commands have been read out, but instead a start command code has been read out from the SEW DATA REG, the control program would return to the main address via a routine 189 which checks whether the diode 34a or 35a is illuminated. Then the monitor loop 106 would be executed repeatedly.

Accordingly, when the RTN key 32 is pressed by the operator, the frame 19 is first temporarily stopped and then moved back to the reference zero position of the letter "P" , namely along a path,

the
moved over the / frame. In this state, the operator threads the needle and removes the stitches already formed in the second letter area of the workpiece 9; then the operator presses the embroidery- ._.-

130052/069

* - Start switch 23 to restart embroidery from the beginning of the letter "Q" . If the drive signals have not been generated before the frame 19 one of the positions SS1, SS2 ... etc. corresponding to the stitch positions SN1, SN2 ... etc., as shown in FIGS. 13 to 15, then the control program would jump from routine 180 to RTN 20 address 181 after having run through routine 119, which has transferred the memory content of the OUT B REG, OUT X REG and OUT Y REG to the CMND SGM B REG, CMND SGN X REG and CMND SGN Y REG, as well as via the routine 191, which the sign of the memory content of each of the CMND SGN- Register reversed. The frame 19 is thus returned to the start position of the letter "Π" in the same way as explained above.

If the drive signals are not generated due to the generation of the BROKEN signal when most of the stitches to form the letter "-f" have already been formed, for example the frame 19 is at a position SSn + (see FIG. 12) corresponding to a Stitch position SDn + 2 is, and the letter "Ύ " has already been formed up to the stitch SNn and the RTN key 32 has been pressed after the SGL STIT key 35 has already been pressed to switch on the diode 35a, the control program would jump from monitor loop 106 to routine 188 of the RTN key routine through the following steps: routines 174, 175 and 180; RTN 20 address 181; Routines 182, 183 and 185; RTN 30 address 186; and routine 187. From routine 188, the ί-'touerprogramrri would return to the main address and the Hon Ltorschleif υ Kd is again executed repeatedly.

As a result, the frame 19 stopped at the position SSn + 2 corresponding to the stitch position SNn + 2 becomes the stitch position SSn + 1, corresponding to the stitch position SNn + 1 moves that

130052/0698

In the NcM he is in position 5! -Mn ι . '. when the RTN TnntT 32 is pressed. If <ier praise Ί ⁽ ) noc \\ had not been moved to Par, i I ion SSn ι 2, corresponding to .let-Sl iehposjl ion SNn + 2, then Stenerprogranim would transfer from routine 180 to RTN 30 address 186 routines 190 and 191 jump. In this case, therefore, the frame 19 will be returned to the position SSn + 1, corresponding to the stitch position SNn + 1 in the same way as explained above. If the RTN key 3 2 is pressed again, the control program takes the same path as described above, ie via routines 174, 175 and 180, RTN 20 address 181, routines 182, 183 and 185, RTN 30 Address 186 and routines 187 and 188 to return to the main address, again executing the monitor loop 106 repeatedly.

By actuating the RTN key 32, the frame 19 can ultimately be moved to the position SSn, corresponding to the stitch position SNn, at which the stitches were actually formed. The embroidery cycle can now be started again from the position SNn of the letter "4 " in that the start switch 23 is pressed after the diode 35a has been switched off by pressing the SGL STIT key 35.

When the operator returning the embroidery frame 19 has made a mistake for position SSn and has taken it beyond this position, for example to the position SSn - 1, the return of the embroidery frame 19 can be easily corrected by pressing the embroidery switch 23 after the above MCHN LOCK button 23 mentioned is pressed.

In the description of the above embodiment, an industrial sewing machine was assumed at v / elcher the needle in addition to the vertical back and forth

130052/069

- is deflected swinging sideways; the invention can but can of course also be provided in an ordinary sewing machine in which the relative movement between the needle and the workpiece only takes place in one direction by moving the workpiece holder alone and not laterally Movement of the needle is provided.

In the return operation of the workpiece 9 and the embroidery frame 19, which were stopped at the position SSn + 2 by a yarn break signal or the like, back to Yarn break position SSn, the operator should press the RTN key in the exemplary embodiment explained above Press 32 to move these parts intermittently to the yarn breakage position SSn, the arrival of this Parts at the target position is ensured by visual observation. However, this process can be performed by a automatic return of the workpiece 9 and the embroidery frame 19 can be replaced with intermittent movement. For this purpose, a counter is used to count the number of vertical movements of the needle 4 after the occurrence of the Thread breakage provided. After a suitable after-treatment of the thread breakage, one moves by actuation of the operator caused return signal this TeHo automatically just by the number stored in the counter to return to Target position and also starts the embroidery pattern formation again.

In the embodiment described above, a unit stitch pattern is divided into a plurality of stitch zones and the number of stitches to be formed for each stitch zone is determined in common for all stitch zones. It is however, it is possible to individually use a certain uniform stitch pattern; different stitch densities in each stitch zone to form that different number of stitches for each stitch zone; determined: will. With a simple one

130052/0698 EPO copy Jf

"'" 310835;

Uniform stitch pattern, which as a whole can be treated as a continuous stitch zone, is a subdivision of the Incidentally, pattern in a large number of zones is not necessary.

130052/0698

Claims (9)

Claims 1. Automatic sewing machine with a device for shaping of stitches on a workpiece, including a reciprocating needle and one with the needle cooperating loop pick-up, with a workpiece holder to hold the workpiece during the sewing process, with a drive device that works with the workpiece holder and / or the stitch forming device is connected and which changes the relative position between the workpiece holder and the needle, and with Storage means for storing a plurality of blocks of unit pattern information, of which each corresponding to a respective predetermined plurality of unit stitch patterns, each of the plurality of blocks of unit pattern information consists of a plurality of positional data related to the Relate the relative position of the workpiece holder to the needle, characterized by first manual actuation devices for generating selection commands, 130052/0698 epc-cofv 3109353 at least two desired blocks of unit pattern information from the first memory device by a further memory device to save the selection commands from the first Manual control device were generated, in the order of the first manual control device performed selection process, by second Manual operating devices for generating a command signal which the size of the by the selection commands selected individual unit stitch pattern, and by control means for modification the position data of the selected unit pattern information corresponding to that by the second manual operating device generated command signal and for supplying the modified position data to the drive device in timely relationship with the reciprocation of the needle. 2. Automatic sewing machine according to claim 1, characterized characterized in that each of the plurality of blocks of unit pattern information is so is designed that a unit stitch pattern to be formed accordingly within a through a square Limited predetermined range is included that the second manual control device further another command signal indicating the direction of arrangement is generated so that the selected stitch patterns be arranged such that one of the vertices of the quadrilateral is on a straight line is arranged, and that the control device means for modifying the selected Unit pattern information corresponding to the other generated by the second manual operating device Includes command signal. 130052/0698 3. Automatic sewing machine according to claim 1, characterized in that the first manual operating device a programming keyboard with a plurality of keys, and that each of the Selection commands generated by the first manual operating device are assigned to one of the plurality of keys is. 4. Automatic sewing machine according to claim 1, characterized in that the control device comprises a microprocessor connected to the first and second manual operating devices and program storage devices to store a program for modifying the selected unit pattern information, and further temporary storage means for storing the modified unit pattern information. 5. Automatic sewing machine having a device for forming stitches on a workpiece, including a reciprocating needle and a loop pick-up cooperating with the needle, with a workpiece holder for holding the workpiece during the sewing process, with drive devices that are connected to the Workpiece holder and / or the stitch forming device are connected and the relative position between the Workpiece holder and the needle change, and with storage devices for storing a variety of blocks of unit pattern information each of which is one corresponding to predetermined plurality of unit stitch patterns, each of the plurality of blocks of unit pattern information consists of a plurality of positional data indicating the relative position between correspond to the workpiece holder and the needle, characterized in that the plurality of blocks of unit pattern information as a combination 1300B2 / 089S _Λ EPO COPY pattern information including predetermined distance information between every two adjacent ones of the unit stitch patterns to form a combination stitch pattern are stored that the sewing machine manual control devices for generating a command signal to denote the individual size of the unit stitch pattern and / or the individual distances between each comprises a pair of unit stitch patterns, and that control means are provided to each the multiple blocks of predetermined unit pattern information and / or each of the predetermined distance information in accordance with the command signal, and the modified information in synchronism with the sewing process. to deliver the drive device. 6. An automatic sewing machine according to claim 5, characterized in that each of the unit pattern information is designed in such a way that a unit stitch pattern to be shaped accordingly within a predetermined area bounded by a square is included that the manual operating device a with the control device connected programming keyboard and generates a further command signal that the Indicating the direction of arrangement so that each of the multiple unit stitch patterns of the combination stitch pattern is arranged such that one of the vertices of the square is arranged on a straight line and that the control device means for modifying the Combination pattern information corresponding to the further command signal generated by the manual operating device. 7. Automatic sewing machine according to claim 5, characterized in that the control device has a includes microprocessor connected to the manual control device, as well as program storage devices 130082/0693 EPO COPY for storing a program to read the combination pattern information to modify, as well as temporary storage facilities for storing the modified combination pattern information. 8. An automatic sewing machine having means for forming stitches on a workpiece, including one reciprocating needle and a loop pick-up interacting with the needle, with a workpiece holder for holding the workpiece during the sewing process, with drive devices that are connected to the Workpiece holder and / or the stitch forming device are connected and which the relative position between change the workpiece holder and the needle, and with storage devices for storing multiple blocks of unit pattern information each of which is respective predetermined multiple unit stitch patterns corresponds to each of the multiple blocks of the unit pattern information from a. Variety of position data exists, which are linked to the relative position between the workpiece holder and the needle, thereby characterized in that the position data include movement data which indicates the amount of movement of the Specify the workpiece relative to the needle, as well as direction data that indicate the relative direction of movement of the workpiece indicate to the needle that the sewing machine first control devices for reading out the position data from the Storage device in a predetermined order and for supplying this position data to the drive device synchronous with the operation of the device for forming stitches, comprise that means for producing a Timer pulse, which is asynchronous for the operation of the device for forming stitches, are provided that Second control devices are provided for stopping the device for forming stitches, in order to retrieve the movement data and the direction data from the memory device 130052/0698 in the reverse order of the predetermined order to read out the direction data of the position data to modify, and to send the modified position data to the drive devices in synchronism with the timer pulse to deliver, and that means are provided for selecting the operation of one of the two control means are. 9. Automatic sewing machine according to claim 8, characterized in that the device for Generating a timer pulse includes manually operable switch means for generating a Timer pulse can be actuated depending on the actuation of the manually actuatable switch device are. 130062/0698