JP2548240Y2 - Cloth holding mechanism of button sewing device - Google Patents

Description

[Detailed description of the invention] [Industrial use distribution] The invention relates to a cloth holding mechanism of a button sewing device, and in particular, a button sewing device which can easily adapt to a change in cloth thickness of various sewing cloths. And a cloth holding mechanism.

(Prior art)

Currently, a button sewing device shown in FIGS. 3 to 6 has been proposed.

In FIG. 3, reference numeral 4 denotes a frame. The frame 4 is connected to motors M ₁ and M ₂ by rotating belts B ₁ and B ₂ and is movable in the X and Y directions.

Reference numeral 3 denotes a button holder provided on the frame 4, and A denotes a position adjusting mechanism for adjusting the position of the button holder 3.

The button holder 3 can open and close the arm 3a by rotating an internally provided gear 3b as shown in FIG. 4A, and can hold the button B.

The button holder 3 is moved up and down by the position adjusting mechanism A while holding the button B, as shown in FIG. And a vertical position.

And 2 is a set holder, which has a curved plate shape,
The front end has a sewing needle avoiding notch 2a, and the other end is pivotally supported by the frame body 4 and the sewing cloth (not shown) bent along the set holder 4 is attached to the button holder 3. (Cloth setting position) below the horizontal position.

Reference numeral 1 denotes a cloth receiving body, and 1a denotes a cloth contacting plate which is horizontally fixed to a fixing plate C having one end fixed to the frame 4, and is located below the horizontal position of the button holder 3 (cloth setting position). A sewing cloth to be bent, which is bent in the set holder 2, is brought into contact with the upper surface of the set holder 2 so that the sewing cloth is held and fixed between the lower surface of the set holder 2 and the sewing machine. You can do it.

Reference numeral 1c denotes an upright portion provided vertically, which comes into contact with the front end portion (bent portion) of the sewn cloth bent by the set holder 2, and is set by the elastic portion (not shown). Can be moved horizontally according to the thickness of the cloth.

Next, the operation when the button is sewn to the cloth to be sewn will be described with reference to FIGS.

In FIG. 5, N is a single thread ring stitch sewing machine (not shown).
Sewing needle.

The button B held by the arm 3a below the button 3A has an appropriate distance L between the set holder 2 and the upper surface of the cloth W to be sewn sandwiched between the cloth receiver 1 by the position adjusting mechanism A. ing.

In this state, a single thread chain stitch is performed with the sewing needle N, and the button B is sewn to the cloth W to be sewn with the sewing thread T at an appropriate distance L as shown in FIG.

Next, as shown in FIG. 6, the button B is vertically positioned by the position adjusting mechanism A, and the sewing thread T
By performing single thread ring stitching, a root winding portion Ta can be formed as shown in FIG.

[Problems to be solved by the invention]

However, the above prior art has the following problems.

That is, since the cloth receiver for holding and fixing the sewn cloth with the set holder is provided on the frame body 4 and cannot be moved up and down, the set holder must be sewn to respond to various changes in the cloth thickness of the sewn cloth. It is necessary to adjust up and down with respect to the receiving body, so that the sewing operation becomes complicated and the work efficiency is low.

[Means for solving the problem]

The present invention is directed to a cloth holding mechanism of a button sewing device provided with a frame for moving a cloth and a button in the XY direction. The cloth holding mechanism is provided on the frame, clamps a button to be sewn, and holds the button horizontally and vertically. And a plate-shaped set holder provided on the frame body and capable of moving back and forth between a cloth setting position set below the horizontally held buttons and a predetermined retracted position. And a cloth receiver for holding the sewn cloth folded along the set holder at the cloth setting position between the lower surface of the set holder and the cloth receiver. And a holding member provided on the frame, and a cloth contact plate that is held horizontally by a spring member that urges the holding member upward,
An object of the present invention is to solve the above-described conventional problem by sandwiching and fixing a sewn cloth between a cloth contact plate and a lower surface of a set holder.

[Action]

The cloth holding mechanism of the button sewing apparatus according to the present invention is configured such that the cloth to be sewn is held between the set holder and the cloth holder by a cloth contact plate horizontally held by the holder through a spring body that urges the set holder. By clamping and fixing, the cloth contact plate is moved up and down according to the change in the cloth thickness of the cloth to be sewn, so that the cloth to be sewn can be set without performing an adjusting operation.

[Example of the invention]

 An embodiment of the present invention will be described with reference to the drawings.

The same parts as in the prior art are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 1 and FIG. 2 are views showing an embodiment of the present invention.

FIG. 1 is an exploded perspective view showing the structure of the cloth receiver 1. In the figure, reference numeral 1a denotes a cloth contact plate having vertical pins 5 and 5 at both ends on the lower surface.

Reference numeral 1c denotes a rising portion, which is provided at both ends with engaging feet for engaging with the cloth contact plate 1a.
It is slidably held in the direction.

8 and 8 are leaf springs, one end of which is a cloth contact plate 1
a, the other end is in contact with the rising portion 1c,
The rising portion 1c is urged against the cloth contact plate 1a.

Reference numerals 7, 7 denote holders having vertical holes 5a, 5a for engaging the vertical pins 5, 5 of the cloth contact plate 1a.
1a can be held horizontally.

Reference numerals 6 and 6 denote spring bodies provided between the cloth contact plate 1a and the holders 7 and 7, which are stored in the spring body receiving holes 6a and 6a of the holders 7 and 7, respectively. Wind the vertical pins 5,5, and touch the cloth contact plate 1a.
Is urged upward.

S, S is a stopper, which has an inverted L-shape and has a long hole at the bottom, and is fixed to the holders 7, 7 so as to be vertically adjustable by screws, and the upper part is a cloth contact plate. A predetermined gap is formed between the cloth contact plate 1a and the holders 7, 7 in contact with the upper surface of 1a.

Next, the operation of the cloth receiver 1 having the above-described structure for holding the cloth to be sewn will be described with reference to FIG.

The holding member 7 of the cloth receiving body 1 is mounted on a fixing plate C having one end fixed to the frame body 4, and the cloth contacting plate 1 a is urged upward by the spring 6 to contact the sewing cloth W. In contact.

Here, in changing the cloth thickness of various sewing cloths W,
This can be accommodated by changing the gap H between the cloth contact plate 1a and the holder 7.

That is, when the cloth thickness of the cloth to be sewn W is large, the gap H
Becomes smaller (the cloth contact plate descends), and conversely, if the cloth thickness is thin, the gap H becomes larger (the cloth contact plate rises), thereby performing the complicated vertical adjustment of the set holder 2. Without depending on the cloth thickness of various sewing cloths W,
Sewing work efficiency can be improved.

[Effect of the invention]

As described above, according to the present invention, the cloth receiving body for holding the cloth to be sewn with the set holder is fixed via the holding body fixed below the set holder and the spring body biasing the holding body upward. And the cloth abutment plate is held horizontally so that the cloth abutment plate can be moved up and down according to the thickness of the cloths to be sewn. Can be set, and the sewing work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, showing the structure of a cloth receiving body. FIG. 2 is a partially cutaway sectional view showing the operation of the cloth receiving body in FIG. 6 to 6 are views showing a conventional technique, FIG. 3 is an external perspective view showing a structure of a cloth holding mechanism, and FIG. 4 is a view showing a button holding body, and FIG. FIG. 5B is a front view showing the state, FIG. 5B is an explanatory view showing the operation when the position of the button is changed, and FIG. 5 is a view showing the sewing state of the button, and FIG.
Is a partially cutaway sectional view showing a related configuration of each mechanism, FIG. 6B is a side view showing a sewn product after sewing in FIG. 7A, and FIG. FIG. 1A is a partially cutaway sectional view showing a related configuration of each mechanism. FIG. 1B is a side view showing a sewn product after sewing in FIG. 1A. In the figure, W: cloth to be sewn B: button 1 ... cloth receiver 1a ... cloth contact plate 2 ... set holder 3 ... button holder 6 ... spring body 7 ... holder

Claims (1)

(57) [Scope of request for utility model registration] 1. A cloth holding mechanism for a button sewing device provided with a frame for moving a cloth and a button in an XY direction, wherein the button to be sewn is clamped on the frame, and the button is moved horizontally and vertically. A button holder that can be held in a state, a plate-like set that is provided on the frame, and that can advance and retreat between a cloth setting position set below the button that is held in a horizontal state and a predetermined retreat position A holder, and a cloth receiver for holding the sewn cloth bent along the set holder at the cloth setting position between the lower surface of the set holder and the cloth receiver. A holding member provided on the frame, and a cloth contact plate horizontally held by the holding member via a spring body that urges upward, the cloth contact plate and a lower surface of the set holder. Between the fabric and the fabric A cloth holding mechanism for a button sewing device.