JPH08206379A - Contracting sewing controller of sewing machine - Google Patents

Abstract

PURPOSE: To improve the work efficiency by indicating that the work is in alternate sewing condition when alternate sewing is designated, and detecting the completion of contracting sewing on the condition that the thread cutting has been completed, based on the combination of information on two sets of contracting sewing patterns stored and the order, and reading out the sewing patterns each time. CONSTITUTION: A sewing pattern input circuit 21 stores sewing pattern data into a sewing pattern circuit 18. Furthermore, an alternate pattern selecting circuit 20 instructs to combine patterns Nos. for continuously sewing a right sleeve and a right sleeve. And, when an alternate mode setting circuit 10 sets an alternate mode, the No of the pattern to be sewn first is indicated on a display circuit 22. According to this, the specified, for example, right sleeve's pattern is sewn. This sewing ends, and a thread cutting completion detecting circuit 15 detects that the thread is cut. With this, a contracted sewing completion detecting circuit 13 detects the completion, and the next pattern is indicated in the display circuit 22, and sewing is made with this pattern.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing machine automatic seizing control apparatus for automatically performing shirring sewing, and more particularly to an apparatus for alternately achieving shirring of different patterns.

[0002]

2. Description of the Related Art Conventionally, when sewing left and right sleeves, for example, this type of sewing machine stores the shirring data of the sleeves as pattern information, and after sewing one sleeve according to the pattern information, the other one is sewn. It is known that the sleeve pattern information is read and set, and the other sleeve is sewn according to the pattern information.

[0003]

For this reason, the work efficiency is reduced due to the complicated work of reading the pattern information of the other after sewing one sleeve.

[0004]

According to the present invention, the shirring stitch pattern information is stored, the stored shirring stitch pattern information is read out, and predetermined shirring stitching is performed while controlling the upper feed amount according to the information. In the sewing control device of the sewing machine, the switch for designating the alternate sewing mode, the display means for displaying the mode when the switch designates the alternate sewing, and the two sets of the alternate sewing for performing the alternate sewing The storage means for storing the combination of the sewing pattern information and the sewing order, the detection means for detecting the completion of the shirring sewing by the set of shirring pattern information on the condition that the thread trimming has been executed, and the switch are specified. And one of the combinations of the false stitching pattern information stored in the storage means is read out, and the other false stitch is detected by the detection means. Comprising a sewing pattern control means for reading only sewing pattern information, on the feed control means for controlling the upper feed amount by read shirring sewing pattern information. Further, according to the present invention, a plurality of shirring stitch pattern information is stored in advance, one of the stored shirring stitch pattern information is read out, and predetermined shirring stitching is performed while controlling the upward feed amount according to the information. In a shirring control device of a sewing machine, a switch for designating one of an alternate sewing mode and a normal shirring sewing mode, display means for displaying at least the switch to be in the mode when the alternate sewing mode is specified, and the previously stored A storage means for sequentially readablely storing at least two designated shirring stitch pattern information among the shirring stitch pattern information, and the shirring stitching by the shirring pattern information on condition that thread trimming is executed. Detecting means for detecting the completion of sewing, and when the detecting means detects the above, the switch designates a normal shirring sewing mode. And the sewing pattern control means for reading the other shirring stitch pattern information from the storing means when the switch designates the alternate sewing mode. And upper feed control means for controlling the upper feed amount according to the superposed stitching pattern information.

[0005]

[Function] When alternate stitching is specified by the alternate stitching switch,
It is displayed that the alternate sewing state is present, and based on the combination and order of the two sets of the set and sewn stitching pattern information, it is determined that the completion of the sewn stitching is detected each time the thread trimming is completed. Two sets of false stitch patterns are read out alternately.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. FIG. 1 is a circuit diagram of a main part for explaining an embodiment of the present invention, showing a case where it is used in a sleeve sewing machine. Reference numeral 1 is a rotation detection circuit for detecting the rotation of the sewing machine, 2 is a shirring switch, 3 is an initial value shirring amount detection circuit, 5 is an alternate switch for instructing alternate sewing, and 6 is a reset circuit. The outputs of the shirring switch 2 and the initial value shirring amount detection circuit 3 are AN
It is connected to the D gate 7.

The output of the AND gate 7, the output of the rotation detection circuit 1, and the output of the alternate switch 5 are connected to an AND gate 8. The output of the AND gate 8 and the output of the reset circuit 6 are mode-switched. It is connected to the circuit 9, and the output of the mode switching circuit 9 is connected to the alternating mode setting circuit 10 and the alternating mode releasing circuit 11. The shirring end detection circuit 13 includes the output of the exchange mode setting circuit 10, the output of the thread trimming completion detection circuit 15, and the AND
The output of the gate 7 is connected, and the squeeze end detection circuit 13
Of the sewing pattern storage circuit 1 is connected to the sewing pattern control circuit 17.
8 is connected.

Reference numeral 20 is an alternating pattern selection circuit for selecting the patterns of the right sleeve and the left sleeve to be sewn alternately, and 21 is a sewing pattern input for inputting various sewing patterns of the right sleeve and the left sleeve. It is a circuit. The sewing pattern input circuit 21 is the sewing pattern storage circuit 18
The alternating pattern selection circuit 20 is connected to the sewing pattern storage circuit 18 and the sewing pattern control circuit 1.
It is connected to 7.

FIG. 2 is a flow chart for the control operation. The operator uses the sewing pattern input circuit 21 to
The pattern data to be sewn is set to the pattern No. It is input and stored in the sewing pattern storage circuit 18 for each. In this embodiment, the pattern No. Is No. 1 to No. 4 of 4
Types are prepared and No. The sewing pattern of the right sleeve is input to No. 1 and No. The sewing pattern of the left sleeve corresponding to the right sleeve is input to 2. Similarly, No. In No. 3, the sewing pattern of the right sleeve of the other sleeve is input, and No. 3 is input. A sewing pattern of another left sleeve corresponding to the other right sleeve is input to 4.

In addition, the operator can select the alternate pattern selection circuit 20.
To sew right sleeve and left sleeve alternately and continuously,
No. 1 and No. The combination of No. 2 (or No. 3 and No. 4) is instructed. This combination is stored in the sewing pattern control circuit 17 (FIG. 2, block 30, hereinafter referred to as block).

In this state, the output of the rotation detecting circuit 1 detects that the sewing machine is stopped, and then the outputs of the shirring switch 2 and the initial value shirring amount detecting circuit 3 indicate that the shirring amount is the initial value shirring amount. Is detected. The output from the alternate switch 5 turns the alternate switch O
When the N state is detected and it is detected from the content of the instruction of the mode switching circuit 9 that the current sewing mode is not the alternate sewing mode, the alternate mode setting circuit 10 sets the alternate mode and the alternate sewing mode is set. Display the status of setting circuit 2
The LED is turned on and displayed in 2. At this time, the display circuit 22
Is the pattern No. to be sewn first based on the content of the sewing pattern control circuit 17. , In this case No. 1 is also displayed (blocks 31, 32, 33, 34, 3
5).

On the other hand, on the other hand, each of the blocks 31, 32,
If the discrimination output at 34 is the opposite of the above condition, that is, if the blocks 31 to 33 are NO outputs, the alternate sewing mode is not set. When the alternate sewing mode is already set and it is desired to cancel the alternate sewing mode setting and return to the normal sewing mode, the alternate switch 5 is turned on again. This second turn-on of the alternate switch 5 is detected by the blocks 33 and 34, the mode switching circuit 9 instructs the alternate sewing mode release, the alternate mode release circuit 11 releases the alternate mode, and the display circuit 22 displays. The LED is turned off and the alternate sewing mode display is canceled (block 3
3,34,36).

When the sewing machine is driven in the state where the alternate sewing mode is set, the operator can see the pattern No. displayed on the display circuit 22. The right sleeve pattern No. 1 is sewn. At this time, the upper feed control circuit 23 sets the pattern No. 1
The upper feed amount is controlled in accordance with the sewing pattern (blocks 37, 38). The thread trimming completion detection circuit 15 detects that the right sleeve has been sewn and thread trimming is performed (block 39), and the alternate sewing mode is not released (block 4).
0), when the shirring completion detection circuit 13 detects the completion of the shirring (blocks 41, 42), the display circuit 22 displays the other than the previously set alternate sewing based on the contents of the sewing pattern control circuit 17. Pattern No. Show LE
D is turned on (block 43).

Further, the upper feed control circuit 23 uses the pattern N
o. The upper feed amount is controlled so as to correspond to the left sleeve pattern of No. 2 (block 44). In this state, unless the alternate switch 5 is turned on again, that is, the blocks 33, 3
Alternate stitching is performed by the same operation as described above, unless processes 4 and 36 are executed.

Since the present embodiment shows the case of sleeve sewing, the sewing patterns of the right sleeve and the left sleeve are input as described above, but the sewing pattern is limited to the sleeve as long as the sewing pattern is to be alternately sewn. It is clear that it cannot be done. It is also clear that the sewing patterns to be combined can be selected arbitrarily.

[0016]

[Effect] According to the present invention, when alternate stitching is designated, the mode of alternate stitching is displayed, and the shirring pattern information is alternately switched based on the combination and order of the patterns for performing shirring stitching. Alternate sewing is possible, and this alternate sewing can be switched by detecting completion of sewing based on each pattern information.
Even when sewn into symmetrical sewn items such as left and right sleeves, it is no longer necessary to specify a pattern for each item at the time of sewing, and switch operation is not required, which simplifies work and improves work efficiency. To improve.

Further, the sewing machine can be used not only for the symmetrical shirring but also for the seizure sewing which alternately uses the pattern information, thereby improving the versatility of the sewing machine. Further, since the next pattern information is read out after the completion of the sewn-in sewing is detected on condition that the thread trimming is performed, the thread is connected to the previous cloth before the thread trimming is performed. Since the next pattern information will not be read out as it is, the pattern information and the usage state of the sewing machine can be surely matched, and malfunctions can be prevented.

[0018]

[Brief description of drawings]

FIG. 1 is a circuit diagram of a main part of an embodiment of the present invention.

FIG. 2 is a flowchart of an embodiment of the present invention.

[Explanation of symbols]

 5 is an alternate switch 10 is an alternate mode setting circuit 17 is a sewing pattern control circuit 18 is a sewing pattern storage circuit 20 is an alternate pattern selection circuit 22 is a display circuit 23 is an upper feed setting circuit

Claims (2)

[Claims] 1. A shirring control device for a sewing machine, which stores shirring stitch pattern information, reads the stored shirring stitch pattern information, and performs predetermined shirring sewing while controlling the upper feed amount according to the information. , A switch for designating the alternate stitching mode, a display means for indicating that the mode is the mode when the switch designates the alternate stitching, a combination of two sets of shirring sewing pattern information for performing the alternate stitching, and a sewing order. Storage means for storing, detection means for detecting the completion of shirring sewing by a set of shirring pattern information on the condition that thread trimming has been executed, and acting based on the designation of the switch, One of the stored combination shirring sewing pattern information is read, and the other shirring sewing pattern information is read by the detection means. A barbed sewing control device for a sewing machine, comprising: a sewing pattern control means; and an upper feed control means for controlling an upper feed amount based on the read out stitching pattern information. 2. A sewing machine that stores a plurality of shirring stitch pattern information in advance, reads out one of the stored shirring stitch pattern information, and performs a predetermined shirring stitch while controlling the upper feed amount according to the information. In the shirring control device, a switch for designating one of an alternate sewing mode and a normal shirring sewing mode, a display means for displaying at least the switch to be in the mode when the alternate sewing mode is specified, and the previously stored Of the shirring stitch pattern information, at least two designated shirring stitch pattern information items are sequentially stored in a readable manner and a storage means is provided. Detection means for detecting completion,
At the time of detection by the detecting means, when the switch designates the normal shirring stitching mode, the shirred stitching pattern information of the completed sewing is read again from the storing means, and when the switch designates the alternate sewing mode, the storing means Sewing machine seizure characterized by further comprising sewing pattern control means for reading the other shirring sewing pattern information and upper feed control means for controlling the upper feed amount based on the read in sewing stitch pattern information. Sewing control device.