JPH03118091A - Button sewing machine - Google Patents

Abstract

PURPOSE:To easily adjust a height for coiling the root of a button to a required value and to easily read the height by providing an adjusting device to adjust the root coiling height of the button and providing a mechanism to vertically move a button holder holding function and a means to display the height of the button. CONSTITUTION:A holder vertically moving device 13 is equipped with a housing 16 and a frame 20a fitted to this housing so as to be easily vertically moved. The button is held by button facing flanges 26 of button holders 21 and 22 and a knob 18 of the vertically moving device 13 is operated. Then, an interval between the botton and cloth is set to a required value. In the case of sewing- out, the interval between the button and the cloth is made narrow and a stopper 24 fitted to a fit panel 20 of a holder device 17 gets contact with a stopper 25 fitted to a frame 11. Then, the fit panel 20 is prevented from being turned. In the case of sewing-out, it is not necessary to execute the turn and sewing is continued while braking the fitting plate 20. In the case of root coil sewing, the knob 13 of the vertical moving device 13 is operated and the fitting plate 20 and the holders 21 and 22 are set to the root coiling height. Then, sewing is executed while setting the interval to the cloth to the required value.

Description

[Detailed Description of the Invention] The present invention relates to a button sewing machine, and in particular, a button height adjustment mechanism for a double-purpose sewing machine for neck-wrapping button-stitching (a common name for button-wearing without neck-wrapping). Regarding.

When changing the neck wrapping height as shown in Figure 6, loosen the slide part with a hexagonal wrench, move the chuck part up and down by hand (judging visually), and tighten again with a hexagonal wrench.

There are two or three types of m winding heights for a type of sewing product, and when one piece is to be flown, the height must be changed and adjusted, and tightening the screws on the sliding part costs man-hours and increases production. There was a drawback that there was no

An object of the present invention is to provide a sewing machine that can be used for both round stitching and fillet stitching, and to easily create button neck wrapping heights of 1i1 knots.

In order to achieve the above-mentioned object, the button stitch sewing machine according to the present invention is a sewing machine that can be used for neck wrapping button stitches and fill stitches.
An adjustment device is provided to jiff the height of the button's neck wrap.

According to a preferred embodiment, the adjustment device includes a mechanism for raising and lowering the button holder retention mechanism and means for indicating the button height.

Another button stitch sewing machine according to the present invention is a sewing machine for neck-wrapping button stitches and flat stitches, in which when it is possible to reverse from the flat button position to the neck-wrap position, a stopper is inserted between the reversing member and the sewing machine frame to minimize the stitching. A stopper is activated when the winding height is less than the winding height.

According to a preferred embodiment of the present invention, the neck wrapping height sub-section mechanism is provided with a knob, and a click mechanism is inserted into the knob to stop the neck wrapping height at a scale position.

[Operation]- With the configuration of the present invention described above, the height of the button stack can be easily adjusted to a required value, and the height can be easily read.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An exemplary embodiment of the present invention will be described in detail with reference to the drawings.

Although the button holder mechanism shown in FIG. 1 is of the configuration described in the button holder device filed on the same date, the present invention can also use other button holder mechanisms. Briefly, two button holders 21 and 22 each form a rack, and one pinion 2
3 and move by the same dimension in opposite directions within the intersecting sliding grooves of the mounting plate 20, so that the centers of the buttons are always aligned even if the sizes of the buttons to be held are different. These button holders 21.22 are provided with gripping surfaces 26.27 for gripping the buttons.

A frame 11 is fixed on an XY child table 0 on the sewing machine bed, a shaft 12 is passed through the frame, and a button holder up/down device 13 is fixed to one end of the shaft 12.

The other end of the shaft 12 is connected to an air cylinder 15 via a lever 14. This air cylinder moves the holder up and down device 13 through the shaft I2 to a position where the button sewing part of the fabric is centered.
0 @ Rotate.

The holder up/down device 13 has a housing 16 and a frame 20a attached to the housing so as to be movable up and down. This frame is fixed to the mounting FJ, 20. The frame 20a is the second
As shown in the figure, the rack 30 provided on this frame and the pinion 31 supported on the housing 16 are combined to move up and down by turning a knob 18 fixed to the pinion. As another example, as shown in FIG. 3, the frame 20a can be moved up and down within the rod 33 of the holder device 17 by an eccentric wheel 32 connected to the knob 18, and the holder device 17 can be moved up and down. A click mechanism consisting of a ball 34 and a recess 36 facing a spring 35 shown in FIG. 4 is inserted between the housing 1G and the knob 18 to stop it at a desired scale position to prevent accidental movement.

Frame 2 attached to mounting plate 20 of button holder device 17
0a is attached to the above-mentioned up-and-down device 13 so as to be able to move up and down,
It has intersecting holder guide grooves, and the holder 21.
Slide 22. A pinion 23 meshes with a rack formed in the holders 21, 22 and moves the holders by the same amount in opposite directions; reference numeral 28 designates a spring which always biases the holders 21, 22 closed.

One end of this spring is fixed to the holder 21, and the other end is fixed to the mounting plate 2.
Fixed to 0.

FIG. 5 shows a stopper section of the up/down device. This stopper section has, for example, the following configuration. The stopper 24 attached to the mounting plate 20 faces the stopper 25 fixed to the frame 11, and when the height of the mounting plate 20 is lowered for flat stitching, the stoppers 24 and 25 come into contact and the upper and lower mounting by the air cylinder 15 is performed. ! '13. By preventing rotation of the holder device 17, contact with the table is prevented.

That is, when the stopper 24 is at the position A-A', the mounting plate can be rotated by the air cylinder 15 for neck wrapping sewing, and when the stopper 24 is at the position B, the mounting plate can be rotated by the air cylinder 15 for neck wrapping sewing.
25 prevents the mounting plate from rotating and serves as a solid stitch.

FIG. 6 shows the operation when wrapping the button.

The button is first placed in a horizontal position 29 when attached to the fabric W.
a to a vertical position 29b, and the neck is wrapped in this vertical position.

The operation will be explained below.

A button (not shown) is held in the opposing jaws 26 of the button holders 21 and 22, and the knob 18 of the up-and-down device 13 is operated to set the distance between the button and the cloth to a required value. In the case of solid stitching, the distance between the button and the cloth is narrow, and the stopper 24 attached to the mounting plate 20 of the holder device 17 contacts the stopper 25 attached to the frame 11, preventing rotation of the mounting plate 20. If rotation is necessary (sewing continues with the mounting plate 20 stationary).

In the case of neck wrapping sewing, operate the knob 18 of the up/down device 13 to set the mounting plate 20 and holder 21, 22 to the neck wrapping height and perform sewing with the required distance from the fabric.Since the mounting plate 20 has risen, the stopper 24 Stay away for .25 minutes. After sewing the predetermined buttons, operate the air cylinder 15 and press the lever 14. axis 12
Via the up and down device 13. The holder device 17 is rotated 90 degrees around the button sewing part of the fabric.

The sewing machine performs neck wrap stitching.The button is removed from the holder 2122, the air cylinder 15 is operated to return the up/down device 13 and the holder device 17 to the horizontal position, the new button is held in the holder, and the next sewing is performed.

With the present invention, the height of the button can be set extremely easily.
Reading set values is easy and reliable. Furthermore, by providing a stopper that operates below the minimum height of the holder mounting plate, it is possible to prevent the holder etc. from being damaged due to contact with the throat plate due to malfunction of the air cylinder.

Furthermore, by inserting a click mechanism into the height adjustment knob, it was possible to prevent accidental changes in height due to slipping of the vertical device.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a button holder up and down and rotation device of a sewing machine according to the present invention, FIGS. 2 and 3 are perspective views showing respective embodiments of the up and down device, and FIG. 4 is a perspective view of a knob in the up and down device. FIG. 5 is a schematic diagram showing a stopper portion of the up-and-down device, and FIG. 6 is an explanatory diagram when the button is in a neck-wrapped state. 11... Frame 12... Axis 13...
・Vertical device t 15...Air cylinder 1
7... Holder device F 1B... Knob 20
...Mounting plate 21.22...Button holder 24, 25...Stopper

Claims (1)

[Claims] 1. In a sewing machine for both neck-wrapping button stitching and solid stitching,
A button sewing machine characterized by being equipped with an adjustment device for adjusting the height of button wrapping. 2. The sewing machine according to claim 1, wherein the adjusting device includes a mechanism for raising and lowering the button holder holding mechanism, and means for displaying the button height. 3. In a sewing machine that can be used for both neck-wrapping button stitching and solid stitching,
A button sewing machine characterized in that a stopper is inserted between a reversing member and a sewing machine frame when the button can be reversed from a flat button position to a neck wrapping position, and the stopper is activated when the height is less than a minimum neck wrapping height. 4. The sewing machine according to claim 2, further comprising a knob provided on the button height adjustment mechanism, and a click mechanism interposed in the knob to stop the button height at a scale position.