JPH08199416A - Welding unit for sewn member made of synthetic fiber - Google Patents

Abstract

PURPOSE: To provide a welding unit capable of easily and firmly welding a sewn member on an adhered even by a layman. CONSTITUTION: This welding unit is designed to weld a sewn member such as a tack label TR comprising synthetic fibers on an adherend, and is equipped with a nearly inversely trapezoidal exothermic wire material 2 with its tip 2a made flat, a heat-generating voltage application means 3 for the exothermic wire material 2, a holding means 4 for the wire material 2, a means 5 to force the holding means 4 to move downward, a means 10 to make the holding means 4 return to the original position by making use of the energizing force, and a member 6 to press a specified spot of an adherend to make a positioning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding device for a sewing member made of synthetic fibers for welding a sewing member made of synthetic fibers to an adherend, and more particularly, to a flat tip portion. The present invention relates to a welding device for a sewing member, which is made of synthetic fiber and is adapted to weld the sewing member to an adherend by pressing the tip end of the heating wire in a heated state against the sewing member.

[0002]

2. Description of the Related Art Conventionally, as one of the sewing members, a tack label is attached to an adherend such as a garment made of synthetic fibers, etc. , The sewing machine was hung in that state, and the tack label was attached to the adherend with the sewing thread. Also, as one of the sewing members, in order to attach the shoulder pad of women's clothing to an adherend such as clothes, put the shoulder pad on the adherend of the adherend in a state of overlapping and hang the sewing machine in that state. , The shoulder pad was attached to the adherend with sewing thread. Also, as one of the sewing members, a lace formed of synthetic fiber or the like is placed on the cup part of the brassiere in a state of being stacked on the adherend of the laminate, and in that state, the sewing machine is hung and the sewing thread is used for synthesis. A lace or the like formed of fibers or the like was attached to the adherend of the laminate.

[0003]

As described above, the work of attaching the sewing member to the adherend by hooking the sewing machine requires precision when positioning the sewing member at a predetermined position of the adherend, and is a fine work. Therefore, there is a problem that skill is required, it is troublesome, and the number of man-hours is increased. Further, since the tack label is attached to the adherend with the sewing thread, if the sewing thread is broken, the tack label may be disengaged from the adherend or may be misaligned. In addition, when attaching a thick sewing member to an adherend, the tension of the sewing thread may deform the thick sewing member into a concave shape or cause wrinkles, which may impair the design of the adherend. there were.

The present invention has been made in view of the above-mentioned conventional problems, and a sewing member formed of synthetic fibers can be easily welded to an adherend, and this welding operation is simple and can be performed by an amateur. Welding of a sewn member made of synthetic fiber, which can be performed, and after the sewn member has been welded to the adherend, the sewn member does not come off from the adherend and a firm attachment state can be maintained. The purpose is to provide a device.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and the welding device for a sewing member made of synthetic fiber according to claim 1 is made of synthetic fiber. A welding device for a sewing member formed of synthetic fiber for welding a sewing member to an adherend, comprising: a substantially inverted trapezoidal heating wire having a flat tip end; And a heating voltage applying means for generating heat.

According to a second aspect of the present invention, there is provided a welding device for welding a sewing member formed of synthetic fibers, wherein the heating wire and the heat generating means are provided.
The heating wire holding means is provided, pressing means for pressing the holding means to move the holding means downward, and return urging means for returning the holding means to the original position by urging force. According to a third aspect of the present invention, there is provided a device for welding a sewn member formed of synthetic fibers, which includes a pressing and positioning member that presses and positions a predetermined portion of an adherend.

According to a fourth aspect of the present invention, there is provided a device for welding a sewn member made of synthetic fiber, wherein the pressing means includes a rotary drive shaft and a pressing rod pivotally mounted on the rotary drive shaft and moving the holding means downward. It is equipped with. In the welding device for a sewing member formed of synthetic fibers according to a fifth aspect of the present invention, the return urging means is composed of a coil spring.

According to a sixth aspect of the present invention, there is provided a device for welding a sewn member made of synthetic fiber, wherein the heating wire is formed of a pair of left and right nichrome wires, and the tip of the heating wire is bent horizontally to form a flat shape. It is formed in an inverted trapezoidal shape. A welding device for a sewing member formed of the synthetic fiber according to claim 7,
The heating wire is formed in a taper shape toward the lower side.

[0009]

According to the welding device for a sewing member made of synthetic fibers according to the first aspect of the invention, the sewing member made of synthetic fibers is superposed on a predetermined portion of the adherend and then heated by the heating voltage applying means. The flat tip of the exothermic wire rod is pressed. Then, the sewn member is welded to the adherend by the heat generating action of the tip portion of the heating wire.

According to another aspect of the present invention, in the apparatus for welding a sewing member made of synthetic fiber, the holding means is moved down by the pressing means, and the heating wire held by the holding means is moved down integrally to generate heat. The tip portion of the heating wire in the state is pressed against the sewing member to weld the sewing member to the adherend. Claim 3
According to the welding device for the sewing member formed of the synthetic fiber,
The pressing and positioning member presses and positions the sewing member on a predetermined portion of the adherend, and the tip portion of the heating wire rod in the heat generating state is pressed against the sewing member to weld the sewing member to the adherend.

According to the sewn member welding device formed of the synthetic fiber of claim 4, when the rotary drive shaft is driven to rotate, the pressing rod pivotally mounted on the rotary drive shaft rotates in the pressing direction,
The holding means is pushed downward by the pushing rod.
As a result, the heating wire held by the holding means is integrally pressed and moved downward, and the sewing member is welded to the adherend at the tip of the heating wire heated by the heating voltage applying means. According to the welding device for a sewing member formed of the synthetic fiber according to the fifth aspect, since the return urging means is composed of the coil spring, the structure is simple.

According to the welding device for welding a sewn member formed of the synthetic fiber of claim 6, since the heating wire is formed by a pair of left and right nichrome wires, heat is satisfactorily generated by applying the voltage by the heating voltage applying means. Further, the sewn member is welded and fixed to the adherend in a good condition by the heat generation effect of the flat tip of the heating wire formed in the inverted trapezoidal shape. According to the welding device for a sewn member formed of the synthetic fiber according to claim 7, since the heating wire is formed in a taper shape toward the lower side, the resistance value of the tip portion becomes high and when a voltage is applied. Since the exothermic temperature of the tip portion becomes higher than that of other portions, the welding of the sewing member to the adherend is favorably performed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a welding device for a sewing member made of synthetic fiber according to the present invention will be described below with reference to the drawings. In the embodiments described below, the tack label will be described as the sewing member, but the present invention is not limited to this and can be applied to, for example, a shoulder pad for women's clothing. 1, FIG. 2 and FIG. 3 show the appearance of a welding device 1 for a tack label TR of this embodiment, FIG. 1 is a front view showing a welding standby state, FIG. 2 is a side view thereof, and FIG. FIG. 4 is a front view showing a state immediately before welding.

The tack label TR is made of synthetic fiber. In the welding device 1 of this embodiment, a substantially inverted trapezoidal heating wire 2 having a flat end 2a and a heating voltage applying means 3 (FIG. 4) for heating the heating wire 2 during welding. ), A holding means 4 for holding the heating wire 2, a pressing means 5 for pressing the holding means 4 to move it downward, and a return urging means 10 comprising a coil spring for returning the holding means 4 to its original position by an urging force. And a pressing and positioning member 6 for pressing and positioning a predetermined portion of an adherend such as clothing made of synthetic fiber.
And are provided.

The pressing means 5 is provided with a rotary drive shaft 5a and a pressing rod 5b which is pivotally mounted on the rotary drive shaft 5a and moves the holding means 4 downward at its tip. The heating wire 2 is formed of a pair of left and right nichrome wires, and a tip portion 2a thereof is bent horizontally to be formed in a flat shape.
The whole is formed in an inverted trapezoidal shape, and is further formed in a tapered shape toward the lower side.

The heating wire 2 is vertically movable with respect to the pressing / positioning member 6, and the pressing / positioning member 6 is biased downward by a pair of left and right springs 7. The holding member 4 has a pair of left and right lengths that are vertically movably inserted into the penetrating length guide holes 8a on both left and right sides of the fixing member 8 that is vertically attached to the upper end portion of the apparatus body 1a by a pair of left and right mounting bolts 9. A rod portion 4a, an upper horizontal member 4b for pressure receiving which is hung and fixed on the upper end portions of these long rod portions 4a, and a horizontal portion 4c which is hung and fixed on a lower end portion and has a large diameter through hole 4c And a lower cross member 4e formed with.

The holding member 4 is urged upward between the bottom of the recess 8b for spring support provided in the fixing member 8 and the upper horizontal member 4b for pressing to return it to its original position. Return biasing means 1 consisting of a coil spring
0 is set. Further, the outer shell 3a of the heating voltage applying means 3 is attached and fixed to the through hole 4c in the central portion of the lower horizontal member 4e in a penetrating state. A concave groove 8b into which the upper portion of the outer shell of the means 3 enters is formed.

The outer shell 3a of the heating voltage applying means 3
Is vertically movably inserted into a through hole 6b formed in the flat plate portion 6a at the upper end of the pressing and positioning member 6, and the flat plate portion 6a is provided at the lower end portion of the outer shell portion of the heating voltage applying means 3. The collar-shaped portion 3b provided is configured to be locked so as not to drop downward. A pair of left and right springs 7 are disposed between the lower cross member 4e of the holding member 4 and the flat plate portion 6a of the pressing and positioning member 6 to urge the pressing and positioning member 6 downward. There is.

The lower end portion of the pressing and positioning member 6 is horizontally bent forward to be formed into a horizontal plate shape, and the lower end portion of the heating wire 2 is inserted into and removed from the horizontal plate portion 6c. A notch opening 6d is formed, and the horizontal plate-like portion 6 is formed.
The c and the upper flat plate portion 6a are integrally formed by the hanging plate portion 6e. As shown in FIG. 4, in the heating voltage applying means 3, insulating silicon pipes 3h and 3e are inserted and fixed in the outer shell portion 3a, and these pipes 3h and 3e.
Terminals 3d and 3i are fixed to the lower end of the. Conductors 3f and 3g are connected to the upper ends of these terminals 3d and 3i, respectively, and the lower ends thereof are connected to the base ends of a pair of left and right heat generating wires 2.

In the present invention, as described above, the exothermic wire 2 is formed into a flat shape by bending the tip portion 2a thereof in the horizontal direction, and is entirely formed into an inverted trapezoid, and further downward. It is formed in a tapered shape. The length of the flat portion 2a is set such that the tack label TR can be reliably welded to the adherend in one operation, taking into consideration the size of the tack label TR that requires welding and the size of the heating wire 2 respectively. Is desirable.

Next, the procedure for welding the tack label to the adherend by the welding device 1 for the sewing member formed of the synthetic fiber of this embodiment will be described. First, an adherend (not shown) such as synthetic fiber is placed on the pedestal portion 1c of the apparatus body 1a, and the tack label TR (see FIGS. 5 and 6) is set at a predetermined position on the adherend. To do. After that, the rotary drive shaft 5a of the pressing means 5 is rotationally driven in the counterclockwise direction in FIG. 2 by a drive source such as a drive motor to restore the pressure receiving upper transverse member 4b of the holding member 4 at the tip of the pressing rod 5b. Urging means 10
It is pressed and moved downward against the urging force of.

By this pressing movement, as shown in FIG.
The entire holding member 4 is moved downward, the lower surface of the horizontal plate-shaped portion 6c at the lower end of the pressing and positioning member 6 presses against the adherend, and the urging force of the spring 7 positions and fixes the adherend. In this state, when a voltage is applied to the heating wire 2 by the heating voltage applying means 3, the heating wire 2 generates heat and the holding means 4 is moved further downward, so that the spring 7 is moved as shown in FIGS. The heating wire 2 moves downward against the urging force of the horizontal plate-shaped portion 6 of the pressing and positioning member 6.
The tip portion of the heating wire rod 2 enters the notch opening 6d of c and moves further downward, the tip portion of the heating wire rod 2 is pressed against the tack label TR, and the tack label T is generated by the heat generation action.
R is welded to the adherend.

After the welding is completed, the adherend and the tack label TR are gradually moved in position to release the pressing state by the pressing means 5, and the holding means 4 and the heating wire 2 are urged by the urging force of the return urging means 10. To return to the original position, and then repeat the above-mentioned operation procedure to set the tack label TR.
The tack label TR is fixed to the adherend by fusing a plurality of points on the adherend.

Incidentally, as shown in FIG. 7, the tip portion 2a of the heating wire 2 is formed so as to have a wide left-right width so that the tack label TR can be welded to a large area to be firmly welded to the adherend. You may comprise. By doing this,
By making the length of the tip portion 2a arbitrary, it is possible to weld a larger tack label TR or a smaller tack label TR with a few operations in a few times, and since the tip portion 2a is not sharp, heat is generated in the tack label TR. It is possible to prevent the formation of holes due to.

In the above embodiment, the heating wire 2 and the heating voltage applying means 3 are attached to the apparatus main body 1a so that the tack label TR is automatically welded to the adherend. The welding device 1 for the formed sewing member has been described, but the present invention is not limited to this, and a welding device for a sewing member formed of synthetic fibers composed of the heating wire 2 and the heating voltage applying means 3 is configured to provide the heating voltage. The outer shell portion 3a of the means 3 may be held in hand, and the tip end of the heating wire 2 may be pressed against the tack label, and the tack label may be welded to the adherend by the heat generating action. According to this, the structure of the entire apparatus is simple and lightweight, and therefore, there is an advantage that it can be carried by hand and welding work can be performed at a desired place.

[0026]

As described above, the welding device for a sewing member made of synthetic fibers according to the first aspect is made of synthetic fibers for welding the sewing member made of synthetic fibers to the adherend. A welding device for a sewing member, comprising: a substantially inverted trapezoidal heating wire having a flat tip portion; and a heating voltage applying means for causing the heating wire to generate heat during welding. Therefore, the following effects are achieved. That is, a voltage is applied to the heating wire by the heating voltage applying means to heat the heating wire, and the tip of the heating wire is pressed against the sewing member,
Due to the heat generation effect, sewing members of various sizes can be welded to an adherend such as a garment made of synthetic fiber by adjusting the flat width of the tip portion to the size of the sewing member, and the sewing member is covered. Can be easily welded to the body,
This welding work is simple and can be performed by an amateur, and even after the sewing member has been welded to the adherend, the sewing member does not come off from the adherend and a firm attachment state can be maintained.

According to a second aspect of the present invention, there is provided a device for welding a sewing member made of synthetic fiber, wherein the heating wire and the heat generating means are provided.
Since the holding means for holding the heating wire, the pressing means for pressing and lowering the holding means, and the return urging means for returning the holding means to the original position by the urging force, Has the effect described in. That is, the holding means is pressed by the pressing means to move down, the heating wire held by the holding means is moved down integrally, and the tip of the heating wire is pressed against the sewing member to generate the heating voltage applying means. Since the sewing member can be welded to the adherend by the heat generation effect of the heat generating wire due to the application of the voltage from, the welding operation can be automated and labor saving can be achieved.

Since the apparatus for welding a sewn member made of synthetic fiber according to claim 3 is provided with a pressing and positioning member for pressing and positioning a predetermined portion of the adherend, displacement of the adherend can be prevented. The welding device for a sewing member formed of synthetic fiber according to claim 4, which is capable of accurately performing the welding of the sewing member to the adherend, wherein the pressing means includes a rotary drive shaft and a rotary drive shaft. Since it is provided with a pressing rod that is pivotally attached and moves the holding means downward, a series of welding operations can be performed and can be automated by rotationally driving the rotary drive shaft.

In the welding device for a sewing member made of synthetic fiber according to a fifth aspect of the present invention, since the return urging means is composed of a coil spring, the structure can be simplified. In a welding device for a sewn member formed of synthetic fibers according to claim 6, the heating wire is formed of a pair of left and right nichrome wires, and a tip portion of the heating wire is bent horizontally to form a flat trapezoidal shape. Therefore, the sewn member is covered by the heat generated by the flat tip portion of the heating wire formed in an inverted trapezoidal shape by the voltage applied by the heating voltage applying means. Since it is welded to the body, it is possible to perform good welding without making holes in the sewing member.

In the welding device for the sewing member formed of the synthetic fiber according to the seventh aspect of the invention, since the heating wire is formed in a taper shape toward the lower side, the resistance value of the tip portion becomes high and the voltage is increased. Since the exothermic temperature of the tip portion becomes higher than that of the other portion when applying, the welding of the sewing member to the adherend can be performed quickly and satisfactorily.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a welding device for a sewing member made of synthetic fiber according to the present invention.

FIG. 2 is a side view of a welding member welding device formed of synthetic fibers according to the embodiment.

FIG. 3 is a front view showing a state immediately before welding of the welding device for a sewing member formed of the synthetic fiber of the example.

FIG. 4 is a vertical cross-sectional view showing an internal structure of a heating wire and a heating voltage applying means.

FIG. 5 is a front view of the essential part showing the state when the sewing member is welded.

FIG. 6 is a side view of an essential part showing a state when the sewing member is welded.

FIG. 7 is a front view of a main part showing another shape of heating wire.

[Explanation of symbols]

 TR tack label (sewing member) 1 welding device 2 heating wire 2a tip 3 heating voltage applying means 4 holding means 5 pressing means 5a rotary drive shaft 5b pressing rod 6 pressing positioning member 10 return urging means

Claims (7)

[Claims] 1. A welding device for a sewing member made of synthetic fibers for welding a sewing member made of synthetic fibers to an adherend, wherein the tip is formed into a substantially inverted trapezoidal shape. And a heating voltage applying means for causing the heating wire to generate heat during welding, and a welding device for a sewing member made of synthetic fiber. 2. The heating wire, the heat generating means, the holding means for holding the heating wire, the pressing means for pressing the holding means to move the holding means downward, and the holding means returned to the original position by a biasing force. And a return urging means for causing the return urging means.
A welding device for a sewing member formed of the synthetic fiber according to 1. 3. The welding device for a sewing member made of synthetic fiber according to claim 1, further comprising a pressing and positioning member that presses and positions a predetermined portion of the adherend. . 4. The pressing means comprises a rotary drive shaft, and a pressing rod pivotally mounted on the rotary drive shaft and moving the holding means downward. A welding device for sewing members made of synthetic fibers. 5. The welding device for a sewing member made of synthetic fiber according to claim 2, wherein the return urging means comprises a coil spring. 6. The heating wire is formed of a pair of left and right nichrome wires, and the tip end portion thereof is bent horizontally to be formed in a flat shape, and is formed in an inverted trapezoidal shape. A welding member welding device formed of the synthetic fiber according to any one of 1 and 2. 7. The heating wire is formed so as to taper downwardly.
A welding device for a sewing member formed of the synthetic fiber according to any one of 1.