JPS63196669U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 shows a state in which the support is retracted to the bed surface during normal sewing. FIG. 2 is a diagram showing the embroidery frame attached for embroidery sewing. Fig. 3 is a diagram showing selection and storage of embroidery characters, manual setting of embroidery position, start of embroidery, and stop key; Fig. 4 is a detailed view of the embroidery frame facing the embroidery frame detection device of the first embodiment;
Fig. 5 is a detailed view of the embroidery frame facing the electromagnet attached to the support body in Embodiment 2, Fig. 6 is a system block diagram, Figs. 7 and 8 are flowcharts of Embodiment 1, and Fig. 9 The figure is a flowchart of Example 2. 7 in Figure 4 is an embroidery frame, 13 is an embroidery frame detection device, 10 is a display device in Figure 2, and 23 in Figure 5
is an electromagnet.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A method for moving the embroidery frame relative to the sewing needle through a cloth feeding device that feeds the fabric in a direction perpendicular to the swinging direction of the sewing needle and an indicator that indicates the embroidery frame. The sewing machine has two modes: a driving device that moves and positions the sewing machine; a normal sewing mode in which normal sewing is performed using the cloth feed device; and an embroidery sewing mode in which the driving device moves the embroidery frame relative to the sewing needle to perform embroidery sewing. In a sewing machine having a switching device for switching operating states, an embroidery frame detection device determines whether the embroidery frame is connected to a support, and when the switching device is switched, the embroidery frame detection device detects whether the embroidery frame is attached. If the embroidery frame is not attached, perform the evacuation or return operation, and if it is attached, the display device instructs you to remove the embroidery frame, and after the embroidery frame is removed,
A safety drive device for an embroidery sewing machine having a means for retracting or returning the machine. (2) When the switching device is switched, the display device instructs the user to remove the embroidery frame, and after removing the embroidery frame, instructs the user to press a predetermined key, and when pressed, the key that causes the evacuation or return operation to be activated. A safety drive device for an embroidery-capable sewing machine as claimed in claim 1. (3) The embroidery frame detection device has an electromagnet for holding the embroidery frame on the support, and when the switching device is switched from the embroidery sewing mode to the normal sewing mode, the electromagnet is de-energized and the embroidery After the holding state of the frame and the support body is released, the retraction operation is performed, and when switching from the normal sewing mode to the embroidery sewing mode, the electromagnet is de-energized and the return operation is performed while the holding state of the embroidery frame and the support body is released. A safe drive device for an embroidery-capable sewing machine according to claim 1, which has means for exciting an electromagnet after the support is returned to a state where the embroidery frame can be held against the support.