JPH01293897A - Electronic sewing machine - Google Patents

Abstract

PURPOSE:To make it possible to alternately sew a right-hand sleeve and a left-hand sleeve by a method wherein several sewing patterns are previously inputted to a memory and both the sleeves are alternately sewed by combining these stored sewing- patterns. CONSTITUTION:An operator, which each pattern number, inputs the pattern data sewed by a sewing-pattern input device 21 which is related with each pattern number switch, to a sewing pattern memory 18. When a sewing machine is now started in the state that an alternately sewing mode is selected, the operator sews the right-hand sleeve pattern of a No.1 pattern indicated on a visual display device 22. In this case, a waling controller 23 controls an amount of walking corresponding to the sewing pattern of the No.1 pattern. After the sewing of the right-hand sleeve is completed, it is detected by a thread cutting detector 15 that the thread cutting is done, and when it is detected by a contraction detector 13, without releasing the alternately sewing mode, that the contraction is completed, a LED lights up on the visual device 22 and indicates another No.2 pattern instead of the alternately sewing pattern which is previously selected on the basis of the data of a sewing pattern controller 17. The walking controller 23 is also controlled by the amount of walking corresponding to the left-hand sleeve pattern of the No.2 pattern.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a sewing machine that stores a plurality of sewing patterns in advance and that combines the stored sewing patterns to sew alternately. This invention relates to an electronic sewing machine suitable for sewing.

[Conventional technology]

Conventionally, this type of sewing machine stores sewing patterns for each sewing pattern, reads out the stored sewing patterns for each sewing pattern, and performs sewing.

[Problem to be solved by the invention]

The present invention improves on this point by combining sewing patterns stored in advance and sewing them alternately, furthermore, making it possible to alternately sew the left sleeve and the left shaft. To provide a sewing machine that does not require inputting the distinction between right and left when storing and inputting sewing patterns.

[Means for solving problems]

According to the present invention, there are provided a means for storing a plurality of sewing patterns in advance, an alternating stitch pattern selecting means for preselecting a sewing pattern to be alternately sewn from among the stored sewing patterns, and a means for setting an alternating stitching mode. The sewing machine includes means for controlling the sewing mechanism according to the alternating stitching pattern, and means for canceling the alternating stitching mode.

[Effect]

Therefore, it is possible to automatically repeat and sew a combination of sewing patterns among a plurality of sewing patterns, especially when sewing the sleeves. Furthermore, the alternate sewing mode can be canceled and normal sewing can be performed.

〔Example〕

An embodiment of the present invention will be described based on the drawings.

FIG. 1 is a diagram showing the main circuit configuration of an embodiment of the present invention. 1st
The figure shows the case where the present invention is used in a sleeve sewing machine. That is, in FIG. 1, 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 alternating switch for instructing alternate sewing, and 6 is a reset circuit. are shown respectively. The outputs of the shirring sinch 2 and the initial value shirring amount detection circuit 3 are connected to an AND gate 7. The output of this AND gate 7, the output of the rotation detection circuit 1, and the output of the alternating switch 5 are connected to an AND gate 8, and the output of this AND gate 8 and the output of the reset circuit 6 are connected to a mode switching circuit 9. , the output of this mode switching circuit 9 is connected to an alternating mode setting circuit 10 and an alternating mode canceling circuit 11.

The output of this exchange mode setting circuit 10 is connected to the shirring completion detection circuit 13, and the output of the thread trimming completion detection circuit 15 and the AN
The output of D gate 7 is connected. The output of this shirring completion detection circuit 13 is connected to a sewing pattern control circuit 17.

A sewing pattern storage circuit 18 is connected to this sewing pattern control circuit 17. Further, numeral 20 in FIG. 1 indicates an alternating pattern selection circuit for selecting the shaft pattern and the left shaft pattern to be sewn alternately.

Further, 21 indicates a sewing pattern input circuit for inputting various sewing patterns for the right and left axes.

The sewing pattern input circuit 21 is connected to the sewing pattern storage circuit 18, and the alternating pattern selection circuit 20 is connected to the sewing pattern storage circuit 18 and the sewing pattern control circuit 17, respectively.

The output of the sewing pattern control circuit 17 is connected to a display circuit 22, and the outputs of the alternating mode setting circuit 10 and alternating mode canceling circuit 11 are connected to the display circuit 22. The output of the sewing pattern control circuit 17 is connected to an upper feed control circuit 23.

FIG. 2 is a 70-chart of the embodiment shown in FIG.

〔motion〕

The characteristic operation of one embodiment of the present invention configured in this way will be explained.

The operator inputs sewing pattern data for each pattern number into the sewing pattern storage circuit 18 using the sewing pattern input circuit 21 in cooperation with the pattern NO switch. In this example, the pattern N01tNO1-NO4 (7
) 4 types are available, N.

A sewing pattern with a shaft is input into No. 1, and a sewing pattern with a left shaft corresponding to the sewing pattern with a shaft is input into No. 2. Similarly N
Other shafted sewing patterns for sleeves are input to O3, and NO.
4, the sewing pattern of the left shaft corresponding to the shafted shaft is inputted. Further, the operator uses the alternating pattern selection circuit 20 to select NOI and N in order to alternately and continuously sew the left and right shafts.
Indicates the combination with O2 (or NO3 and NO4). This combination is stored in the sewing pattern control circuit 17 (block 30 in FIG. 2, hereinafter simply referred to as block).

In this state, alternating stitching is performed in the sewing machine as follows. That is, the output from the rotation detection circuit 1 detects that the sewing machine is stopped, the outputs from the shirring switch 2 and the initial value shirring amount detection circuit 3 detect that the shirring amount is the initial value shirring amount, When it is detected that the one-to-one switch is ON based on the output from the alternating switch 5, and it is detected from the instruction contents of the mode switching circuit 9 that the current sewing mode is not the alternating sewing mode, the alternating mode setting circuit 10
sets the alternating stitching mode, and indicates that the alternating stitching mode is being set by lighting the LED on the display circuit 22. At this time,
The display circuit 22 also displays the pattern NOI to be sewn first based on the contents of the sewing pattern control circuit 17. (Block 31.32.33.35).

On the other hand, if the discrimination outputs in blocks 31, 32, 33, and 34 are opposite to the detected conditions, the alternate sewing mode is not set (i.e., the No.
for output).

Furthermore, if the alternating stitching mode has already been set and the user wishes to cancel the alternating stitching mode setting and return to the normal sewing mode, the alternating switch 5 is turned on again. This second ON of the alternating switch 5 is detected by the blocks 33 and 34, the mode switching circuit 9 instructs to cancel the alternating sewing mode, the alternating mode canceling circuit 11 cancels the alternating mode, and the display circuit 22 indicates the alternating sewing mode. Cancel the display and press L
Turn off the ED (blocks 33.34.36).

When the sewing machine is driven with the alternating sewing mode set, the operator sews the shaft pattern of pattern NOI displayed on the display circuit 22. At this time, the top feed control circuit 23 controls the top feed amount in accordance with the sewing pattern No. 1 (blocks 37 and 38). The thread trimming completion detection circuit 15 detects that the shafted sewing has been completed and thread trimming has been performed (block 39), and the alternate sewing mode is not canceled (block 40), and the shirring completion detection circuit 1
3 detects completion of shirring (block 41.42)
, the display circuit 22 displays the other pattern number of the alternate stitching previously set based on the contents of the sewing pattern control circuit 17.
The LED displaying 2 is illuminated (block 43). Further, the upper feed control circuit 23 is controlled to the upper feed amount corresponding to the left axis pattern of pattern No. 2 (block 44).
.

In this state, unless the alternating switch 5 is turned on again to cancel the alternating stitching mode (i.e. block 33
．． As long as the processes of 34 and 36 are not carried out), the alternating stitches continue with blocks 31-33 and 36-44 in the same manner as described above.

Note that since this embodiment shows the case of sleeve sewing, the above-mentioned sewing patterns with a shaft and a left shaft are input, or sewing patterns to be alternately sewn are not limited to sleeve sewing patterns. That is clear. It is also clear that the sewing patterns to be combined can be arbitrarily selected.

[Effects] As explained above, according to the present invention, there are provided a means for storing a plurality of sewing patterns in advance, an alternating sewing pattern selecting means for previously selecting and setting sewing patterns to be alternately sewn from among the stored sewing patterns; The sewing machine includes means for setting an alternating stitching mode, means for controlling a sewing machine mechanism according to the alternating stitching pattern, and means for canceling the alternating stitching mode.

Therefore, a combination of sewing patterns among multiple sewing patterns can be automatically repeated and sewn, and especially when used for attaching sleeves, it is advantageous in that both the left and right shafts can be sewn with one sewing machine. It has a great effect. Furthermore,
You can also cancel the alternate sewing mode and perform normal sewing.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram of a main part of an embodiment of the present invention. FIG. 2 is a 70-chart of one embodiment of the present invention. 5 Alternate switch 9 Mode switching circuit 10 Alternate mode setting circuit II Alternate mode release circuit 17 Sewing pattern control circuit 18 Sewing pattern memory circuit 20 Alternating pattern selection circuit 2I Sewing pattern input circuit 22 Display circuit 23 Upper feed setting circuit (external φ name)

Claims (1)

[Claims] (1) In an electronic sewing machine that stores a plurality of sewing patterns in advance, reads out the stored sewing patterns at the time of sewing, and sews a workpiece according to the read sewing patterns, the sewing machine alternately sews among the stored sewing patterns. means for selecting and setting a sewing pattern to be sewn; means for setting an alternating stitching mode; means for controlling a sewing machine mechanism according to the contents of the alternating stitching pattern setting means; and means for canceling the alternating stitching mode. An electronic sewing machine characterized by comprising: