JPH03251430A - Supersonic weld stitching device - Google Patents

Abstract

PURPOSE:To upgrade the decorative effect of the surface of a product by stitching a plurality of sheet-shaped materials to be bonded not only lineally but also curvingly and forming linear stitching lines and curved stitch lines. CONSTITUTION:An upper surface side skin material 20 and a lower surface side skin material 22 are stitched together by means of stitching sections 31 of the same dimension as the length of projected sections 25 by pressure welding a supersonic vibrator 11 intermittently on the projected sections 25 formed continuously on the peripheries of flat plate-shaped disk components 23 and the corrugated board-shaped disk components 24, and stitching lines 29 and 30 are formed continuously following the feeding of a core material, the upper surface side skin material 20 and the lower surface side skin material 22 by means of a feeding roller. As the corrugated board-shaped disk components 24 and the flat plate-shaped disk components 23 are mounted fixingly on a rotating shaft 14 alternately at the given interval, the super-sonic vibrator 11 is pressure welded with said disk components 23 and 24 intermittently, and in the case sheet-shaped bonding materials 19, 20 and 22 are stitched, linear stitch lines 20 and curved stitch lines 30 are formed alternately.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to an ultrasonic welding and suturing device, and particularly to an ultrasonic welding device capable of suturing a plurality of heat-melting sheet-like materials to be joined by ultrasonic welding. Relating to a suturing device.

[Problems to be Solved by the Prior Art and the Invention 1] Conventionally, when a so-called composite sheet material is created by overlapping a plurality of sheet-like materials to be joined, a sewing machine is used to stitch together the plurality of sheet-like materials to be joined. is used.

When a plurality of sheet-like materials to be joined are overlapped and sewn together using a sewing machine in this manner, a sewing line is formed by the sewing machine on the surface of the sheet-like materials to be joined.

Since the suture lines formed by such a sewing machine form a kind of pattern when the sheet-like materials to be joined are made into a product, they also serve as a decorative feature of the product.

However, when the sheet-like materials to be joined are sewn together using a sewing machine as in the past, it is common to sew them in a straight line, and in order to sew them together along a curved line using a sewing machine, very complicated work is required. Therefore, when a plurality of sheet-like materials to be joined are sewn together using a sewing machine as in the past, most of the suture lines formed are straight lines.

Incidentally, conventionally, members having heat-fusible properties have been joined by ultrasonic welding. In other words, such joining by ultrasonic welding converts ultrasonic electrical energy into mechanical vibration energy, applies pressure to the joint surfaces of a plurality of thermofusible members, and supplies the mechanical vibration energy to the joint surfaces. This method generates strong frictional heat to melt the materials to be joined, thereby welding the plurality of materials to be joined.

Therefore, if it is possible to use such ultrasonic welding to sew together multiple sheet-like materials to form a suture line consisting of not only straight lines but also curves, it will be possible to create a decorative effect when the product is commercialized. can be further improved.

Therefore, the technical problem of the present invention is to use ultrasonic welding to suture a plurality of sheet-like materials to be joined not only in a straight line but also in a curved line to form a straight suture line and a curved suture line. This improves the decorative effect of the surface of the product when it is manufactured.

[Means and effects for solving the problem] In order to solve such technical problems, the present invention provides an ultrasonic vibrator capable of generating mechanical vibration energy converted from ultrasonic electric energy, A rotary transducer receiver disposed below the sonic transducer and capable of placing a plurality of heat-melting sheet-like materials stacked in the thickness direction between the ultrasonic transducer and the ultrasonic transducer. The rotary vibrator receiving part has a rotating shaft disposed perpendicular to the length direction of the sheet-shaped materials to be welded, and a rotary shaft that is fixed to the rotating shaft and rotates as the sheet-shaped materials to be welded move. It rotates and is formed by a plurality of disc members each having a convex portion continuously provided on its periphery that presses against the ultrasonic vibrator through a sheet-like material to be welded, and this disc member is a flat disc member. , a corrugated disc member, and by intermittently press-contacting the ultrasonic transducer to a convex portion provided on the periphery of the disc member via a plurality of heat-melting sheet-like materials to be welded. , is configured to be able to stitch together a plurality of sheet-like materials to be joined.

[Examples] Hereinafter, the present invention will be described in detail based on examples shown in the accompanying drawings.

As shown in FIG. 1, the ultrasonic welding and suturing device IO according to the present embodiment includes an ultrasonic vibrator 11 that can generate mechanical vibration energy converted from ultrasonic electrical energy, and A rotary vibrator that is disposed below and can place a plurality of heat-meltable sheet-like welded materials 19, 20, and 22 stacked in the thickness direction between the ultrasonic vibrator and the ultrasonic vibrator. The receiving part 12 is provided.

The ultrasonic transducer 11 is a sheet-like material to be joined 19.20
．． It is arranged along the width direction of 22 and is formed in a generally rectangular shape as a whole. As shown in FIG. 1, this ultrasonic transducer ll is connected and fixed to the lower end of a booster 26 that constitutes the ultrasonic welding and suturing device 10, and the booster 26 is connected and fixed to a converter 27. ing.

In the converter 27, the electrical signal is converted into mechanical vibration energy, and the booster 26 is configured to further effectively convert the mechanical vibration energy converted in the converter 27 into the materials to be joined. ing.

Further, as described above, the rotary transducer receiving portion 12 is disposed below the ultrasonic transducer 11, and is disposed perpendicularly to the length direction of the sheet-like materials 19, 20, and 22. The ultra-gT wave vibrator 11 and the sheet-like material to be welded are fixed along the rotating shaft 14 and rotated along with the movement of the sheet-like material to be welded 19, 20, 22. 19,20
It consists of a plurality of disk members 13 each having a convex portion 25 continuously provided on the periphery thereof, which presses into contact with the disk member 13 at an angle of 22 degrees.

And 1. As shown in FIG. 2, the plurality of disc members 13 include a flat disc member 23 and a flat disc member 2.
3 and corrugated disc members 24 arranged alternately at predetermined intervals.

In addition, in this embodiment, as shown in FIG. The core material 19, the upper surface surface material 20, and the bottom surface surface material 22 are each sequentially coated by a feed roller 18. -75
The wave transducer 11 is configured to be supplied from the left side in FIG. 1 to the right side in FIG.

Further, as shown in FIG. 1, these sheet-like materials to be joined 19, 20, 22 are sewn together by pressure contact between the ultrasonic transducer 11 and the rotary transducer receiver 12, thereby creating a sewn product 21. If it is, the cutter 17 is configured to cut the product into an appropriate product size.

Further, as shown in FIG. 2, the rotating shaft 14 is provided with a flat disk member 2 constituting the plurality of disk members 13, as described above.
3 and corrugated disc members 24 are attached and fixed alternately at predetermined intervals.

A spacer 15 is fitted between the flat disc member 23 and the corrugated disc member 24. The core material 19 constituting the above-mentioned sheet-like material to be joined is housed in the gap 28 defined by the flat disc member 23, the corrugated disc member 24, and the spacer 15, and the feed roller 18 is rotated. It is also configured to be transported.

The ultrasonic transducer 11 is connected to a convex portion 2 that is continuously provided on the periphery of the flat disc member 23 and the corrugated disc member 24.
5, the upper surface side skin material 20 and the lower surface side skin material 22 are brought into contact with -1-
The stitching is performed by the stitching portion 31 having the same length to υ as the length of the convex portion 25, and is continuously sewn as the core material 19, the upper skin material 20, and the lower skin material 22 are fed by the feed roller 18. Sutures 11!29.30 are formed. That is, as shown in FIG. 3, the flat disc member 23 and the I
By pressure contact with the fl sound wave vibrator 11, -L surface side skin material 2
0 and the lower surface side skin material 22 are sewn together, a straight suture line 29 is formed, and the -1- surface side surface material Material 20
When the lower skin material 22 is sewn together, a curved suture line 30 is formed.

Therefore, in the ultrasonic welding and suturing device 10 according to the present embodiment, as described above, the corrugated disc member 24 and the flat disc member 23 are alternately attached and fixed to the rotating shaft 14 at predetermined intervals. Therefore, when the ultrasonic transducer 11 is intermittently pressed against these disk members 23 and 24 to sew the sheet-like materials to be joined 19° and 20.22, as shown in FIG. , a straight suture line 29 and a curved suture line 30
are formed alternately.

In this embodiment, the case where the flat disc member 23 and the corrugated disc member 24 constituting the disc member 13 are arranged alternately at a predetermined interval has been described as an example. The arrangement order of the flat disc member 23 and the corrugated disc member 24 on the rotating shaft 14 and the spacing between the flat disc member 23 and the corrugated disc member 24 are not limited to the example. It is not limited to, and can be changed as appropriate.

Then, the arrangement order of the flat disc member 23 and the corrugated disc member 24 is changed as appropriate, and the linear suture line 29 formed by the flat disc member 23 and the corrugated disc member Straight suture line 30 formed by member 24
By configuring these as appropriate, it becomes possible to form a pattern of desired suture lines on the sewn product 21.

[Effects of the Invention] Since the ultrasonic welding and suturing device according to the present invention has the above configuration, it is possible to weld a plurality of sheet-like materials to be joined not only in a straight line but also in a curved line using ultrasonic welding. By forming straight suture lines and curved suture lines, it is possible to improve the decorative effect of the surface of the product when it is manufactured, and also to quickly and at low cost. Can create sutured products.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the ultrasonic welding and suturing device according to the present invention, and FIG. 2 is a side view of FIG. 1 showing an embodiment of the ultrasonic welding and suturing device according to the present invention. FIG. 3 is a plan view showing a pattern formed by suture lines on the surface of a sheet-like material to be joined when the sheet-like materials to be joined are sewn together using the ultrasonic welding and suturing device according to the present invention. io...Ultrasonic welding and suturing device 11...Ultrasonic transducer 12...Rotary transducer receiver 13...Disc member 14...Rotating shaft 15...
・Spacer 16... Guide member 1 7... Cutter 9... Core material l... Sewing product 3... Flat disc member 5... Convex portion 7... Converter 9... Stitching Line (straight line) 1...Sewn portion 8...Feed 0-La 0...Upper side skin material 2...Lower side skin material 4...Corrugated disc member 6...Booster 8. ...Gap 0...Suture line (curve)

Claims (1)

[Scope of Claims] An ultrasonic transducer capable of generating mechanical vibration energy converted from ultrasonic electrical energy, and an ultrasonic transducer disposed below the ultrasonic transducer. It has a rotary vibrator receiving part on which a plurality of heat-fusible sheet-like materials to be welded can be placed, which are arranged one on top of the other. A rotating shaft disposed perpendicular to the length direction, and a convex fixed to the rotating shaft that rotates with the movement of the sheet-shaped material to be welded, and is pressed into contact with the ultrasonic vibrator through the sheet-shaped material to be welded. The ultrasonic transducer is formed by a plurality of disc members each having a continuous peripheral edge, and the disc member includes a flat disc member and a corrugated disc member. An ultrasonic welding and suturing device capable of suturing a plurality of sheet-like materials to be joined by intermittently bringing them into pressure contact with a convex portion provided on the periphery of a disk member through the plurality of sheet-like materials to be joined.