KR100726499B1 - Electronic sewing machine for zigzag knitting - Google Patents

Abstract

An object of the present invention is to provide an electronic cross-stitch sewing machine capable of executing a start or end lock-stitch in a predetermined pattern in a simple manner and reliably following a needle vibration pattern.

As a means for solving this problem, a lock stitch pattern (pattern numbers 1 to 9) different from the needle vibration pattern is set and stored for the lock stitch formed at the beginning or end of the needle vibration pattern. The stored needle vibration pattern data and the lock stitch pattern are read out, and the needle vibration mechanism is driven in relation to the seam transfer amount and the condense transfer amount based on these data, and a seam corresponding to the needle vibration pattern and the lock stitch pattern is formed. By making the lock stitch pattern different from the needle vibration pattern, it is possible to realize a sure lock stitch according to the cloth and the yarn.

Description

ELECTRONIC SEWING MACHINE FOR ZIGZAG KNITTING}

1 is a perspective view showing an overview of the electronic cross-stitch sewing machine of the present invention.

2 is a configuration diagram showing a schematic configuration of a needle vibration mechanism.

3 is a block diagram showing a control configuration of the electronic knitting machine.

Fig. 4 is a layout view showing the arrangement of various switches and indicators of the operation panel.

5 is an explanatory diagram showing a seam by needle vibration patterns of various kinds;

6 is an explanatory diagram showing various unique data of a needle vibration pattern.

Fig. 7 is an explanatory diagram showing the unique data of the needle vibration pattern, (B) is an explanatory diagram showing the seam when the lock stitch pattern and the needle vibration pattern are the same, and (C) the lock stitch and the needle vibration pattern. Explanatory drawing which showed the seam of this other case.

Fig. 8 is an explanatory diagram showing a seam when the lock stitch pattern and the needle vibration pattern are different.

Fig. 9 is a flowchart showing a flow of setting a starting lock stitch pattern.

Fig. 10 is a flowchart showing a flow of setting a custom pattern of lock stitches.

Fig. 11 is a flowchart showing a flow of setting a custom pattern of the start lock stitch.

Fig. 12 is a flowchart showing a flow of setting a custom pattern of end lock stitch.

Fig. 13 is a table showing the display of the lock stitch pattern and the pattern number.

Fig. 14 is a flowchart showing the flow of operation when performing lock stitch.                 

※ Explanation of symbols about main part of drawing ※

2: needle bar 3: needle

6: Feed scale dial 7: Condense scale dial

11: needle vibration motor

The present invention is a cloth feed device having a cloth feed tooth for sending the cloth on the needle plate and sending the cloth, a needle moving in conjunction with the sewing machine spindle rotated by the main motor, and the needle in the cross direction of the cloth feed direction The present invention relates to an electronic cross stitch sewing machine for forming a cross stitch seam on a cloth by a needle vibrating mechanism.

In the conventional knitting machine, the needle vibration mechanism is operated by using a needle vibration cam that rotates in conjunction with a sewing machine main shaft, and generates a predetermined needle vibration pattern. Since it was necessary to prepare, there was a problem that the replacement work of the cam was awkward and the manufacturing cost of the cam was increased.

For this reason, an electronic cross-stitch sewing machine has recently been known which stores a needle vibration pattern as data and drives a pulse motor or the like which controls the needle vibration amount based on the read needle vibration pattern data.

However, in this type of electronic knitting machine of the present type, it is necessary to make or change the needle vibration pattern by using a data input device using a coordinate input device or a personal computer, without changing the needle vibration pattern or creating a new one. I should have done it.

In addition, in the conventional electronic knitting machine, the start or end of a predetermined knitting pattern is set by setting the number of stitches at the beginning or the end of the lock stitch to perform a lock stitch to prevent the seam from loosening at the start or end of sewing. At the end, a lock stitch pattern was set. Since the needle vibration position at the start or end of the lock stitch does not become the intended position because the number of needles at the start or end of the lock stitch is set, the transition from the lock stitch to the normal stitch or from the normal stitch is to the lock stitch. There was a problem that the needle oscillation position was shifted and the quality of the finished product was lowered.

In addition, as the lock stitch pattern, the needle vibration pattern cannot be made into a pattern different from that of the cross-stitch pattern.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object thereof is to provide an electronic cross-stitching sewing machine capable of executing a start or end lock stitch in a predetermined pattern in a simple manner and reliably before or after a needle vibration pattern. .

The present invention forms a seam on a fabric by cooperating with a needle that is moved by a main motor that rotates the main shaft, and a cloth transfer device having a cloth feed tooth for sending a cloth to the needle plate in relation to the shandong of the needle. It relates to an electronic cross-stitch sewing machine.

The present invention provides means for inputting and storing the data of the needle vibration pattern and the data of the lock stitch pattern formed at the beginning or the end of the needle vibration pattern, and reading the respective data of the needle vibration pattern and the lock stitch pattern and reading the read needle. And a means for driving the needle vibration mechanism according to the data of the vibration pattern and the lock stitch pattern, and forming a seam according to the needle vibration pattern and the lock stitch pattern.

The present invention also provides a seam feed amount setting means, a condense feed amount setting means, means for inputting and storing data of a needle vibration pattern, and a needle vibration pattern for locking stitches formed at the beginning or end of the needle vibration pattern. Means for inputting and storing data of another lock stitch pattern, driving the needle vibration mechanism in relation to the seam feed amount and the condensate feed amount based on the stored needle vibration pattern and lock stitch pattern data, and It is also characterized by having a control means for controlling the seam according to the vibration pattern and the lock stitch pattern.

In any of the inventions, a predetermined lock stitch pattern can be easily created at the beginning or end of the needle vibration pattern, and by reading the data, a certain lock stitch can be performed in a predetermined pattern. In this case, the lock stitch pattern can be selected to be the same as the needle vibration pattern or a different pattern. For example, in the case of a general cloth, the needle vibration pattern can be used as it is, or the cloth is rough. In this case, the lock stitch pattern can be made into needle drop position data for each needle to form a dense lock stitch of the seam. In addition, if the lock stitch pattern can be selected from multiple stitching seam patterns, for example, if the needle vibration pattern is a two-point stitch, the rock stitch pattern can be easily filled with three or four-point stitches. I can do it with a lock stitch.

The present invention also provides an operation panel for sequentially inputting the needle vibration position data corresponding to the needle vibration pattern, storage means for storing the input needle vibration position data, reading the needle vibration position data from the storage means, It is characterized in that it comprises a control means for controlling the seam according to the needle vibration position data by driving the needle vibration mechanism in relation to the seam formation.

Normally, sewing data is two-dimensional data of XY, but in the above invention, since the feed amount in the feed direction (Y direction) can be set by the pitch setting dial of the feed teeth, it is only necessary to set the data of the needle dropping position (X direction) of the needle vibration mechanism. In addition, sewing data can be input efficiently.

EMBODIMENT OF THE INVENTION This invention is demonstrated in detail based on embodiment shown in the following figure.

(Overall configuration)

Fig. 1 shows an overview of the electronic knitting machine according to the present invention, in which the needle 3 supported by the needle bar 2 is moved by the main motor 1 for rotating the main shaft. In connection with the shanghai-dong of this needle 3, the feed teeth (not shown) of the cloth feeder are placed on the needle plate 4, and the cloth pressed by the presser plate 5 is sent accordingly, in cooperation with the cloth feeder. This forms a seam on the fabric. The seam feed amount of the cloth can be set by the feed scale dial 6, and the lock stitch performed at the start or end of sewing is set by the condense scale dial 7 to drive the feed device at the set feed amount. Is done. The condensed feed amount can be set to 0 from the reverse feed amount of the same amount as the normal feed amount, and as a normal set amount, it is a small feed or a new seam seam feed amount. In this case, the stitching can be performed by operating the lockstitch lever 8 or by driving the lockstitch solenoid (not shown) at the time of the lock stitch and converting the feed amount. Reference numeral 9 denotes a power switch, and reference numeral 10 denotes an operation panel for setting various types as described later.

The electronic cross-stitching sewing machine of the present invention is provided with a needle vibration mechanism as shown in FIG. 2, and the needle rod 2 supporting the needle 3 is a needle vibration motor (for example, a stepping motor or a servo motor) 11 By a link mechanism 12 driven by the reciprocating movement in the direction orthogonal to the cloth transfer direction (arrow direction in FIG. 2) while synchronizing with the cloth transfer action of the cloth transfer device, and accordingly, Can be formed. The needle vibrating mechanism is provided with an origin sensor 13 which detects the shielding plate 11a that rotates with the rotation of the needle vibration motor 11 to detect the origin of the needle vibration position.

3 shows a control system of the electronic cross-stitch sewing machine as a block diagram, the main motor 1 is driven by the pedal command 20 through the sewing machine rotation control circuit 21 and the sewing machine main shaft drive circuit 22, Accordingly, the main shaft of the sewing machine is driven so that the feed teeth are transported so-called left and right, up and down, and the cloth 3 is transported at the feed amount set by the feed scale dial 6, and the needle 3 moves up and down to form a seam. The synchronizer 23 detects the main shaft position, detects one needle seam, and detects an upper value and a lower value and transmits the signals to the sewing machine rotation control circuit 21 and the needle vibration control circuit 24. FIG. Is entered. The needle vibration control circuit 24 drives the needle vibration motor 11 through the needle vibration driving circuit 25 and controls the needle vibration mechanism by receiving a signal from the origin sensor 13. During lock stitching, the lockstitch solenoid 27 is operated to become the feed amount set by the condensation scale dial 7. By the operation panel 10, various data necessary for the control of the sewing machine can be set as described below, and these data are once stored in the memory 26 as necessary, and the scale dial is based on these set data. The rotation of the sewing machine spindle is controlled and the needle vibration mechanism is controlled based on the data set by (6) and the condense scale dial 7 or the like.

(Operation Panel)

Next, various switches and indicators disposed on the display panel 10 will be described with reference to FIG. 4.

Reference numeral 41 denotes a setting switch SW for performing various settings such as switching of the setting mode. The switch 42 is a start lock stitch switch for setting the start lock stitch to "turn on / off", and when the switch is operated, the start lock stitch display LED (light emitting diode) 42a is turned on / off. In addition, the switch 43 is an end lock stitch switch for setting the end lock stitch to "do / not". When the switch is operated, the end lock stitch display LED 43a lights up / offs.

Reference numeral 44 is a half needle (or 1 needle) switch, which is a switch for operating the sewing machine half needle (or 1 needle), and reference 45 is a thread cutting prohibition switch that lock stitch is performed on the footrest behind the pedal but not thread cutting is performed. It is a switch to indicate. When this switch is operated, the cut off prohibition display LED 45a lights up to indicate that the cut off prohibition is effective.

Reference numeral 46 denotes a switch for + -displaying the display value of the indicator 48a which displays two items of the real vibration indicator 48 having the segment indicators 48a, 48b, and 48c. In the case where the start lock stitch switch 42 indicated by "A" is operated below, the lock count count setting of the start lock stitch can be changed. Reference numeral 47 denotes a switch for + -displaying the display value of the indicator 48b displaying one item of the needle vibration indicator 48, when the end lock stitch 43 indicated by "B" is operated under the LED 43a. You can change the lock stitch count setting for the end lock stitch. In addition, the indicators 48a and 48b of this one item and two items indicate the setting of the needle vibration width or the number of needles, and each switch indicated by "C" under each of the LEDs 50a to 56a and 60a. If you operate, you can change the needle vibration width or the number of needles. The other indicators 48a, 48b and 48c display the baseline positions of 3 items set by the operation of the base line switch 61 indicated by " D " under the LED 61a.

Reference numeral 49 denotes a needle vibration pattern straight needle selection switch, which indicates that the straight needle indication LED 49a lights up, and a straight needle is selected as the needle vibration pattern. The two-point bird knitting switch 50 is a switch for selecting two-point bird knitting of the needle vibration pattern, and when the two-point bird knitting is selected as the needle vibration pattern, the two-point bird knitting display LED 50a lights up. . The three-point bird knitting switch 51 is a switch for selecting the three-point bird knitting pattern of the needle vibration pattern, and the three-point bird knitting display LED 51a lights up as a needle vibration pattern. In addition, the four-point bird knitting switch 52 is a switch for selecting four-point bird knitting of the needle vibration pattern. When this switch is operated and four-point bird knitting is selected as the needle vibration pattern, the four-point bird knitting display LED 52a is turned on. Lights up.

The left scallop switch 53 is a switch for selecting the needle vibration pattern left scallop stitch. When the left scallop stitch is selected as the needle vibration pattern, the left scallop display LED 53a lights up. The right scallop switch 54 is a switch for selecting the needle vibration pattern right scallop stitch. When the right scallop stitch is selected as the needle vibration pattern, the right scallop display LED 54a lights up. On the other hand, the left blind stitch switch 55 is a switch for selecting the needle vibration pattern left blind stitch. When the left blind stitch sewing is selected as the needle vibration pattern, the left blind stitch indication LED 55a lights up. The right blind stitch switch 56 is a switch for selecting the needle vibration pattern right blind stitch sewing. When the right blind stitch sewing is selected as the needle vibration pattern, the right blind stitch indication LED 56a lights up. The custom pattern switch 57 is a switch for selecting the needle vibration pattern custom pattern sewing. When the custom pattern sewing is selected as the needle vibration pattern, the custom pattern display LED 57a lights up.                     

The stop position instruction switch 58 is a switch for designating the needle stop position by pedal neutral. In the left stop, the left stop indication LED 58a lights up, and in the right stop, the right stop indication LED 58b. Lights up, and both LEDs 58a and 58b go out in case of arbitrary stop.

The detail setting switch 59 is used in combination with the setting switch 41, and the setting switch 41 makes detailed settings. When this switch is operated, the detailed setting display LED 59a lights up. The needle number setting switch 60 is used when setting the needle number of the scallop blind stitch, and the needle number setting display LED 60a lights up when the needle number is set. The base line switch 61 is used to change the base line position, and when the base line position is set, the base line position display LED 61a lights up.

Reference numeral 62 is a bobbin counter reset switch, which is used to reset the bobbin counter of the sewing machine. The lower thread counter "+" "-" switch 63 is a switch for setting the number of counts in the counter. The number of these counters is displayed on the lower thread counter indicator 64 having four segments 64a to 64d.

(Needle vibration pattern)

In the electronic cross-stitch sewing machine according to the present invention, a needle stitching pattern includes a straight stitch, a 2-point cross-stitch, a 3-point cross-stitch, a 4-point cross-stitch, a scallop, a blind stitch and a custom pattern. The straight stitch is a pattern for straight stitching at the baseline position without performing needle vibration as shown in Fig. 5A. The needle vibration width NW is zero. Two-point bird knitting is a sewing method in which one needle vibration width drops needle to two points left and right in accordance with the base line as shown in Fig. 5 (D), and the three-point bird knitting is shown in Fig. 5 (E). Similarly, the needle vibration width is 1/2 of the needle vibration width (NW), and the needle is dropped to the three points of the left, center, and right. The needle vibration width is a sewing method in which a needle drops from one third of the needle vibration width (NW) to four points of left, center, and right.

On the other hand, the scallop is a crescent-like sewing method in which two circular arcs are sewn with 12 needles or 24 needles as shown in FIG. 5 (B). In addition, the right and left scallop is defined as the right and left scallop in the direction of the arc and the left and right stipulations are defined as the right scallop. As shown in Fig. 5 (C), the stitches start to sew in a straight line, and the needle vibrates to the needle vibration width (NW) with two needles of the final needle of the number of needles, and returns to the original position with one needle. A sewing method that performs a repeating operation. Also in this case, there are left and right blind stitches in the needle vibration direction, and the right (left) blind stitch is a pattern in which the needle vibrates to the right (left) in the straight stitch. In addition, a custom pattern is an original pattern created arbitrarily.

(Unique data)

Each of the needle vibration patterns described above has unique data of the needle vibration width NW, the baseline position NP, the baseline reference position NPs, the sewing start position NS, the sewing end position NE, and the number of needles NC. .

The needle vibration width (NW) represents the needle vibration width in each needle vibration pattern. For example, in the case of four-point tide weave as shown in Fig. 6 (A), one needle width (NWs) is divided into three values of the needle vibration width (NW). . That is, NWs = NW / 3. In this case, if the remainder appears in the split value, it should be equalized to the left and right on the basis of the center position of the needle vibration width. When NW is 5.0, NWs = 1.6 remainder 0.2. Therefore, the first needle is 1.7, the second needle is 1.6, and the third needle is 1.7, and inverted to 1.7, 1.6, 1.7. For example, in the case of a scallop, the needle vibration width is the shape width, and the needle vibration data is used for the needle vibration, and the needle vibration data is defined as the center distribution. The pattern has 24 needles and 12 needles, and the needle position calculation is performed by NDn as the needle data, NDp as the needle position, and NP as the base position, according to the formula of NDp = NP + (NW * NDn / 8.2).

The baseline position NP is the needle vibration with the center of the sewing machine needle vibration mechanism as "0" as shown in Fig. 6 (B), the inside of the sewing machine as "+" (right) and the opposite side as "-" (left). The vibration starting point position is set within the range of -5.0 to 0 to +5.0 within the range not exceeding the maximum needle vibration width WPx.

Baseline reference position (NPs) shows the baseline reference position when the needle vibration can be set to “center reference distribution, right reference vibration, left reference vibration” as shown in FIG. 6 (C). The vibration reference is specified in the center, right and left with respect to the base line position NP. For example, if the baseline position (NP) = 0.0, the needle vibration width (NW) = 3.0, and the baseline reference position (NPs) = left in two-point knitting, the needle vibrates between 0.0 and 3.0.

The sewing start position NS is to set the next sewing start position to "left and right" after the thread cutting as shown in FIG. 7A. The initial setting is left sewing start. In the scallop and blind stitches, there are left and right, but in the case of the right scallop and the right scallop stitch, the left sewing start is the sewing start position.

The number of needles NC is the number of needles of the scallop and the blind stitch, and in the case of the scallop, the standard is 24 needles, the crescent shape is also 24 needles, evenly 12 needles and 24 needles, and the blind stitch is set between 3 and 250 needles. The initial setting is 24 stitches with standard, crescent and even for scallop, and 4 stitches for blind stitch.

In addition, the lock stitch pattern (also called a condense pattern) formed at the beginning or end of the needle vibration pattern is effective for each pattern of straight stitching, two-point knitting, three-point knitting, four-point knitting, and custom patterns. . The number of needles can be set in a pattern unit from the start of sewing to returning in one pattern, and the number of needles can be set within 19 needles. In addition, the condensed conveyance amount at the time of condensation is set by the condense conveyance amount setting dial 7. For example, in the case of four-point knitting, six patterns are possible as shown in FIG. 7 (B), and the number of needles is 18 since three stitches are formed in one pattern.

In addition, as an option for lock stitch (condensation), the first method is to perform a lock stitch in a pattern different from the needle vibration pattern, and secondly, as a custom setting for the lock stitch, the needle vibration width is narrowed within the needle vibration width (NW). There is a method of oscillating the needle in the needle vibration width NW in the same direction, and third, a lock stitch custom pattern (original pattern).

The method of performing the lock stitch in a lock stitch pattern separate from the first needle vibration pattern is performed by the lock stitch pattern (PC), the needle vibration width (CW), and the condensation recovery for each start lock stitch and end lock stitch separately from the needle vibration pattern. By setting (CC), the baseline position NP, baseline reference position NPs, and sewing start position NS are the same as the needle vibration pattern. For example, as shown in FIG. 7 (C), the starting lock stitch pattern is four-point knit, the needle vibration pattern is two-point knit, and the end lock stitch pattern is three-point knit. The needle vibration width is CW1 and the condensation frequency is three times. The needle vibration pattern following the lock stitch is two-point knitting. In this case, if the starting position is not necessarily determined, such as 2-4 point knitting in the needle vibration pattern after the start lock stitch is finished, The needle vibrates at the start of the nearest needle vibration. If the end position of the start lock stitch pattern does not coincide with the start of the needle vibration pattern, the speed between one needle after the end of the lock stitch is limited. In addition, the end lock stitch pattern is three-point cross stitch, the needle vibration width is CW2 and the condensation number is four times. In this end lock stitch, one needle is required to shift from the needle vibration pattern to the end lock stitch pattern, so that the condensation number is +1 needle.

As the custom setting of the second lock stitch, the number of needles can be set by narrowing the needle vibration width within the needle vibration width NW, and a method of needle vibration in the same direction will be described next while the needle vibration within the needle vibration width NW is performed. . In this custom setting, the start lock stitch, the pitch width (CPs) to fill the start condensation for each end lock stitch, the number of pitch needles (CNs) to fill the start condensation, the pitch width (CPe) to fill the end condensation, and the end condensation The filling pitch CNe can be set, and the filling pitch * filling pitch cannot be set in the case of the filling needle number> needle vibration width.                     

When the lock stitch pattern is two-point knitting, the needle vibration width minus the filling pitch needle vibration amount is defined as the normal needle vibration width (NI). Transition Needle Vibration Width (NI) = Needle Vibration Width (NW)-Infill Pitch (CP *) * Infill Pitch Needle Number (CN *). In the case of three-point knitting, if the subtracted needle movement amount minus the needle vibration width is smaller than the needle needle vibration width NTs, the transition needle vibration width NTe is used. In case of three-point knitting, if the subtracted needle vibration is subtracted from the needle vibration width, the needle vibration width is subtracted by the needle vibration width by one needle needle width (NWs). The filling is controlled in the order of pitch control, transition needle vibration, and needle needle vibration. Similarly, in the case of four-point knitting, if the remaining pitch minus the filling pitch width (NN) is larger than the needle needle vibration width, NN is divided by the needle needle vibration width and the remainder is the transition needle width (NI), and the share is 1 needle. Needle vibration width Set the number of needles (NCn). The number of condensed needles is the remaining number of needles minus "the number of filling needles, the number of transition needles and the number of remaining pattern needles", and the number of needle vibration patterns is the number of possible needles. The pattern which performed the filling also counts in one pattern.

An illustration of the starting lock stitch for three patterns is shown in FIG. 8.

[Setting of lock stitch pattern]

Next, the setting method of the start (end) lock stitch pattern is demonstrated.

9 shows the flow of setting the starting lock stitch pattern. In step S1, it is determined whether the setting switch SW 41 and the detailed setting switch 59 of the operation panel 10 are turned on at the same time. When it is turned on at the same time, the detailed setting LED 59a lights up (step S2). If the start lock stitch 42 is turned on in step S3, the start lock stitch LED 42a lights up, the lock stitch pattern number is displayed on the segment 64d of the indicator 64, and the lock stitch pattern number is displayed on the indicator 48. When it is 1-3, the needle vibration width is displayed (step S4).

FIG. 13 shows the pattern number displayed on the indicator 6 and its lock stitch pattern. The pattern number "0" indicates the same pattern as that of the needle vibration pattern, and the vibration width of the bristle stitch is also the same pattern. Pattern numbers "1" to "4" are two-point knitting, three-point knitting, four-point knitting, and a straight stitch pattern. Pattern numbers "5" to "9" are custom patterns as the third lock stitch ( Original pattern), in this case, the pattern number is displayed on the segment 64a of the display 64, "C" indicating the custom pattern is displayed on the segment 64b, and the steps 64c and 64d are displayed. The number (corresponding to the step number to the number of needles) is displayed.

If the setting switch 41 is turned on in step S5 of Fig. 9, data corresponding to the display is stored in the memory 26 (step S6). When the pattern or vibration width is changed, the pattern is changed by the lower thread counters "+" and "-" switch 63 (steps S7 and S8). When the pattern numbers are "1" to "3", the switch 46 ( 47) is used to change the vibration width (steps S9 to 11). The changed pattern and the vibration width are stored in the memory by turning on the setting switch 41 (step S5, step S6).

The above is the setting of the start lock stitch pattern, but when setting the end lock stitch pattern, step S3 determines whether the end lock stitch switch 43 is turned on, and at step S4 the end lock stitch LED 43a lights up. The only difference is that it is the same as the setting of the other starting lock stitch pattern.

FIG. 10 shows a flow of processing for setting the lock stitch number (condensation number) of the lock stitch pattern. When the setting switch 41 is on (step S21), the needle vibration pattern indicator 64 lights up, and when the lock stitch switches 42 and 43 are on (step S23), the needle vibration pattern indicator lights up and locks. Stitch LEDs 42a and 43a flash (step S24). If the number of lock stitch patterns displayed on the display 64 in step S25 is "0" to "4", the number of lock stitches can be set. In the case of starting lock stitch in step S27, the start lock stitch is displayed on the display 48a. The number of times the end lock stitch is displayed on the display 48b in the case of the end lock stitch, and on the display 48a and 48b when the number of the lock stitch patterns is other than "0" to "4". "P" is displayed, respectively (step S26).

When the setting switch 41 is turned on in step S28 and step S29, the displayed data is stored, the lock stitch LEDs 42a and 43a stop blinking in step S30, and the needle vibration width is displayed on the indicator 48. (Step S30). When changing the number of lock stitches, the start lock stitch count is switched to the switch 47 corresponding to the display 48b without turning on the setting switch 41 in step S29, and the switch 46 corresponding to the display 48a. The number of end lock stitches is changed (steps S31 and S32).

11 shows a flow of setting the custom pattern when the start lock stitch pattern is the third custom pattern (original pattern). When the custom pattern switch 57 and the start lock stitch switch 42 are operated (step S41), the start lock stitch LED 42a lights up (step S42), and the setting switch 41 is not turned on (step S43). ), When the lower thread counter switch 43 is turned on (step S44), the custom numbers "5" to "9" are displayed on the segment 64a of the indicator 64, and "C" is displayed on the segment 64b. (Step S42). This display state is shown in the custom pattern column of FIG. If the setting switch 41 is on (step S43), the number of steps (the number of needles) is displayed on the segments 64c and 64d of the display 64 (remarks column in Fig. 13). Position data is displayed (step S45).

One of the operation switches of steps 46, 48, 52, and 54 is monitored. In step S54, the lower thread counter switch 63 is operated to increase or decrease the number of steps. The changed number of steps is displayed on the segments 64c and 64d of the display 64 (step S55). Further, the needle drop data in the number of steps can be set by operating the setting switch 46 in step S52, and the data can be displayed on the display 48 (step S55). By turning on the setting switch 41 in which "E" is displayed on the segment 48b of the display 48 as the final number of steps being set according to the on-off of the cutting cut prohibition switch 45 (step S49). The data of the needle drop position at each step number set up to is stored in the memory 26.

In this way, by setting the number of steps and the data of the needle drop position at the step number, the needle drop position data, that is, the needle vibration pattern, can be formed for each needle, and the pattern can be stored in the memory 26 as a custom pattern.

Moreover, although the flow which sets the custom pattern of an end lock stitch is shown by step S61 of FIG. 12 in S75, it is basically the same as that of S55 in step S41 of FIG. 11, and the end lock stitch switch 43 is operated in step S61. Only the point where the end start stitch LED 43a lights up in the switch 62 is different from step S41 and step S42 in FIG.

When the data input of the above lock stitch pattern is put together, when the lock stitch pattern is "0", the needle vibration pattern is the same pattern, the needle vibration width is the same, and the lock stitch number (condensation number) is performed according to the flow of FIG. All. In the case where the lock stitch patterns are "1" to "3", the oscillation width and the number of lock stitches are set by setting the starting rock stitch or the ending rock stitch as the two to four point knitting patterns, respectively. Set according to the flow. If the lock stitch pattern is "4", the stitch is straight, so only the number of needles is set. If the lock stitch pattern is "5" to "9", since it is a custom pattern, the position data of all the needles is input in accordance with the flow of FIG. An example of the seam when the lock stitch pattern is the same as the needle vibration pattern is, for example, as shown in Fig. 7 (B), and in other cases as shown in Fig. 7 (C) or Fig. 8, for example.

[Overall operation]

In Fig. 14, the lock stitch operation is shown as a flowchart. If the start lock stitch switch 42 is turned on in step S81 and the start lock stitch switch 42 is turned on (step S82), the start lock stitch is performed, and the start lock stitch pattern number is set using the switch 63. The pattern numbers "0" to "9" are discriminated in steps S83 and S84, and the start lock stitch pattern is read from the memory 26 according to the respective pattern numbers, and the needle 3 is clothed according to the read pattern. The reciprocating movement is performed in a direction orthogonal to the transfer direction while synchronizing with the transfer operation of the transfer device, and seams corresponding to each pattern are formed. In this case, when the lock stitch pattern is "0", the needle number N is equal to the needle vibration pattern (step S85). When the lock stitch pattern is "1" to "4", the number of needles of the lock stitch pattern is (step S86). In addition, when the lock stitch pattern is "5"-"9", it becomes the number of needles of a custom-set pattern (step S87). Then, the speed limit is added to the Nth needle (step S88), and the process moves to sewing of the needle vibration pattern shown in outline step S100.

After the sewing of the needle vibration pattern is finished, the pedal becomes the back foot (step S91), and when it is determined that the end lock stitch 43 is turned on (step S92), the end lock stitch pattern sewing shown in S98 in step S93 is performed. To fulfill. Similarly, the pattern numbers "0" to "9" are discriminated in steps S93 and S94, and the end lock stitch is read out by reading the end lock stitch pattern from the memory 26 according to each pattern number. In this case, when the lock stitch pattern is "0", the needle number M is equal to the needle vibration pattern (step S95), and when the lock stitch pattern is "1" to "4", the number of needles in the lock stitch pattern is (step). S96), and when the lock stitch pattern is " 5 " to " 9 ", the number of needles of the customized pattern is set (step S97). When the M needle is set to limit the speed (step S98), and if cutting is possible (step S99), the cutting is performed in step S101 to end the operation.

As described above, in the present invention, a predetermined lock stitch pattern can be easily created at the beginning or the end of the needle vibration pattern, and the lock stitch can be performed by reading the data. In this case, by making the lock stitch pattern different from the needle vibration pattern, it is possible to realize a sure lock stitch according to the cloth and the yarn.

In particular, since the data of the start or end lock stitch pattern can be used as needle vibration position data for each needle, for example, fabric or thread is easy to come off, and if the cloth is rough, a few stitches of seam can be pitched during the lock stitch. By making a seam with a seam, you can be sure of a lock stitch.

In the present invention, since the lock stitch pattern can be selected from the knitting pattern, for example, if the needle vibration pattern is two-point knitting, the lock stitch can be simply three- or four-point knitting. You can do In this case, since a dedicated switch corresponding to the picture shape of each pattern to be selected is provided, the lock stitch pattern can be easily selected and directly selected.

In the present invention, it is possible to select whether the lock stitch pattern is the same as the needle vibration pattern or a different pattern. For example, in the case of a general cloth, when the input is a simple needle vibration pattern or the cloth is a rough cloth, The lock stitch data can be created as needle drop position data every needle and registered as a custom pattern, so that a certain lock stitch can be performed.

In general, the sewing data is two-dimensional data of XY. However, in the present invention, since the feed amount in the feed direction (Y direction) can be set by the pitch setting dial of the feed teeth, only the needle drop position (X direction) of the needle vibration mechanism may be used. You can also enter seam data simply and efficiently.

Claims (8)

A needle feeder having a needle moving in conjunction with a main shaft rotated by a main motor, and a cloth feed sprocket that emerges on the needle plate and sends cloth, and a needle vibration needle vibrating the needle in a cross direction of the cloth feed direction. In the electronic cross-stitch sewing machine which forms a seam on the cloth by cooperation with a mechanism, Means for inputting and storing the data of the plurality of lock stitch patterns for the data of the needle vibration pattern and the lock stitch formed at the beginning or the end of the needle vibration pattern; Selecting means for selecting a lock stitch pattern formed at the beginning or the end of the needle vibration pattern from the plurality of lock stitch patterns; Read the data of the needle vibration pattern and the selected lock stitch pattern, drive the needle vibration mechanism in accordance with the read data of the needle vibration pattern and the lock stitch pattern, and form a seam according to the needle vibration pattern and the lock stitch pattern Electronic cross-stitch sewing machine comprising a means for. A needle feeder having a needle moving in conjunction with a main shaft rotated by a main motor, and a cloth feed sprocket that emerges on the needle plate and sends cloth, and a needle vibration needle vibrating the needle in a cross direction of the cloth feed direction. In the electric cross-stitch sewing machine which forms a seam on the cloth by cooperation with a mechanism, Seam feed rate setting means, Condense feed amount setting means, Means for inputting and storing data of the needle vibration pattern; Means for inputting and storing data of a plurality of lock stitch patterns different from the needle vibration pattern for the lock stitch formed at the beginning or end of the needle vibration pattern; Selecting means for selecting a lock stitch pattern formed at the beginning or the end of the needle vibration pattern from the plurality of lock stitch patterns; Driving the needle vibration mechanism in relation to the seam feed amount and the condensate feed amount based on the stored needle vibration pattern data and the selected lock stitch pattern data, and controlling the seam with a seam according to the needle vibration pattern and the lock stitch pattern Electronic sewing machine sewing machine comprising a control means. The method according to claim 1 or 2, And said lock stitch pattern data is formed as needle drop position data of a needle vibration mechanism every needle. The method according to claim 1 or 2, The lock stitch pattern is electronic stitching sewing machine, characterized in that selected from a plurality of needle vibration pattern. The method according to claim 1 or 2, Electronic pattern sewing machine, characterized in that each selected pattern is provided with a dedicated switch corresponding to the picture shape of each pattern. The method according to claim 1 or 2, And a means for converting the lock stitch pattern into the same or different pattern as the needle vibration pattern is provided. delete A needle feeder having a needle moving in conjunction with a main shaft rotated by a main motor, and a cloth feed sprocket that emerges on the needle plate and sends cloth, and a needle vibration needle vibrating the needle in a cross direction of the cloth feed direction. In the electronic cross-stitch sewing machine which forms a seam on the cloth by cooperation with a mechanism, Means for storing at least the needle vibration position data among the needle vibration patterns; An operation panel for sequentially inputting at least the needle vibration position data among the lock stitch patterns formed at the beginning or the end of the needle vibration pattern; Storage means for storing the input lock stitch pattern; And a control means for reading data of the needle vibration pattern and the lock stitch pattern and controlling the seam according to the needle vibration pattern and the lock stitch pattern by driving the needle vibration mechanism in relation to seam formation by the main motor. Electronic cross-stitch sewing machine.

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