JPH06192902A - Method for sealing panty part of stockings - Google Patents

Abstract

PURPOSE:To impart sufficient tensile strength to the seamed part of stockings by cutting and welding the panty parts of two stockings and sewing with a flat seamer machine. CONSTITUTION:Tubular panty parts 1a of two stockings are cut and welded with a stocking cutting and welding means. The stockings having the welded panty part 1a is sewn with a flat seamer machine at the welded part to effect the sewing of the panty part of stockings and close the seam of the panty part by a single stitch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for closing a tubular panty portion of thin boots such as panty hose.

[0002]

2. Description of the Related Art Conventionally, as a method of closing a sock panty, for example, Japanese Patent Publication No. 51-34338 and Japanese Patent Publication No.
Many are known, such as those described in JP-A No. 7-17961 and JP-A No. 64-29290.

According to these techniques, two sock panties are automatically cut by a line closer and then the panties are sewn together by an overlock sewing machine.

However, in these methods, when the socks are thick and the socks are worn, the skin feels uncomfortable and the user feels uncomfortable. I have to.

Similarly, in the case of high-end socks, two sock panty portions are cut by an operator and the ends of the cut surfaces are butted by the operator to hang a flat seam sewing machine to flatten the seams. Methods have also been tried.

[0006]

However, in the former method, since the flat seam sewing machine is sewn on the seam by the overlock sewing machine, the seams are flat, but the overall thickness is thick and the sewing is not easy. The sense of incongruity does not disappear completely.

In the latter method, the flat seam sewing machine alone is not practically used because the tensile strength of the seam is weak.

The present invention was developed for the purpose of solving the above-mentioned problems.

[0009]

The present invention, as shown in FIGS. 1 to 6, includes a horn 5 and an anvil 6 of an ultrasonic welding machine.
After inserting and moving the tubular panty portion 1a of the sock 2 between and, after fusion cutting and ultrasonic welding with ultrasonic vibration,
Flat seam sewing machine is hung on the welded part,
The panty portion 1a of the sock is configured to be sewn together so that the panty portion 1a of the sock is closed. Further, according to the present invention, as shown in FIGS. 7 to 10, the sock-shaped tubular panty portion 1 a is provided between the heater 30 and the receiving member 31.
After the heater 30 and the receiving member 31 are crimped, the panty portion 1a of the sock is melted and welded, and then the welded portion is hung on the flat seam sewing machine, and the panty portion 1a of the sock is sewn together. Then, the panty portion 1a of the sock is closed.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1 An apparatus for carrying out the present invention comprises an ultrasonic welding machine A including an ultrasonic oscillator B and an ultrasonic welding machine body C, a horn 5 and an anvil 6 of the ultrasonic welding machine body C, and The sock-cutting and welding means Da for cutting and welding the tubular panty portion 1a and the gripping member 13 for gripping and releasing the tubular panty portion 1a of the sock, and the tubular panty portion of the sock to the sock cutting and welding means Da. Sock chuck transfer means E for inserting and removing 1a, and sock cutting welding means Da
And a flat seam sewing machine that stitches the panty portion 1a of the sock 2 cut and welded by the sock chuck transfer means E.

As shown in FIG. 6, the ultrasonic welding machine body C includes an ultrasonic vibration system 3 (vibrator 3a, cone 3b, etc.) vibrated by an ultrasonic oscillator B, a horn 5, an anvil 6,
It is composed of a pressurizing device 4 such as an air cylinder, and the tip of a horn 5 is pressed against the welded material with static pressure to vibrate ultrasonically.
Then, due to the effect of the heat generation, most of the energy is converted into thermal energy at the joint boundary surface of the tubular panty portion of the sock, and this portion is selectively heated so that the joint boundary surface is instantaneously cut and welded. It was done.

As shown in FIGS. 1 and 2, the sock cutting and welding means Da is configured so that the tubular panty portion 1a of the sock 1 can be continuously cut and welded by a horn 5 and an anvil 6. For example, in the first embodiment, as shown in FIG. 4, the anvil 6 is horizontally supported by the fixing base 7, and the length thereof is formed to a size sufficient for cutting and welding the tubular panty portion 1a of the sock. At its tip, a rotating anvil having a rotating roller is formed at its tip. Further, the horn 5 of this embodiment presses the horn 5 provided at the tip of the vibrator 3a and the cone 3b shown in FIG. 6 with the pressurizing device 4, and the horn 5 is shown in FIGS. As described above, the distal end portion is elongated and formed to have a length substantially the same as that of the anvil 6, and the tubular panty portion 1 a of the sock is formed between the anvil 6 and the anvil 6.
It is configured so that it can pass through with the intervening. As shown in FIG. 5, the horn 5 may be supported by an arm by forming a conical shape in which a tip end thereof is curved toward the base, and the point is that the horn 5 and the anvil 6 are combined. The tubular panty portion 1a of the sock 1 is interposed between the ultrasonic vibrations to move the tubular panty portion 1a of the sock so that the tubular panty portion 1a of the sock can be cut and welded. The shape and structure of the anvil 6 are not limited to this embodiment. In the embodiment of the present invention, the horn 5 and the anvil 6 are vertically combined and ultrasonically vibrated in the vertical direction. For example, the horn 5 and the anvil 6 are laterally combined, that is, the device shown in FIG. Is rotated by 90 degrees, the tubular panty portion 1a of the sock 1 is interposed between the horn 5 and the anvil 6 and ultrasonically vibrated in the lateral direction, and the tubular panty portion 1a of the sock is moved to move the tubular panty portion of the sock. The portion 1a may be cut and welded, and the mounting direction of the horn 5 and the anvil 6 is not limited to this embodiment.

As shown in FIGS. 1 to 3, the sock chuck transferring means E includes a holding mechanism Fa for inserting and mounting the tubular panty portions 1a of the two socks 1 so as to face each other, and one of the tubular panty portions 1a. A chuck mechanism Ga is provided so as to hold a portion of the horn 5 and the anvil 6 that are inserted therein, and a transfer mechanism Ha that inserts and removes the tubular panty portion 1a into and out of the horn 5 and the anvil 6.

The holding mechanism Fa, as shown in FIG. 2 and FIG.
A sock mounting member 10 in which a plate material having a length that can be held by the tubular panty portion 1a of the sock 1 is bent in a substantially semicircular shape, and the arm 10a is attached to the sock mounting member 10 from both sides of a horn 5 and an anvil 6 entry side base. A cylinder 11 is attached to the tip of the arm 10a so as to protrude, and the other end of the cylinder 11 is attached to a guide block 20 and a screw block 21 of a transfer mechanism Ha described later. The sock mounting member 10 is moved up and down by operating the cylinder 11.

As shown in FIGS. 2 and 3, the chuck mechanism Ga is composed of a pair of upper and lower gripping members 13, 13 that can hold two tubular panties 1a of a sock 1 in a pair, one above the other.
As shown in FIG. 2, one end of the cylinder 3 is connected in an arc shape so that the tubular panty portion 1a of the sock can be easily inserted, and the other end thereof is projected in both lateral directions. The other end of the cylinder 14 is attached to a guide block 20 and a screw block 21 of a transfer mechanism Ha described later. Then, by operating the cylinder 14, the picking member 13 is moved up and down, and the other picking member 13 provided so as to face the tubular panty portion 1a of the sock 1 to hold the horn 5 and the anvil 6 together. The cutting and welding are facilitated by and the grip is released to facilitate insertion and removal of the tubular panty portion 1a of the sock 1.

As shown in FIGS. 1 and 2, the transfer mechanism Ha has a guide shaft 18 on one side between a holder 17a and a holder 17b which are provided on a fixed frame at a distance such that the tubular panty portion 1a of the sock can move. A screw shaft 19 is laid over the other, a guide block 20 is slidably engaged with the guide shaft 18, a screw block 21 is screwed with the screw shaft 19, and the screw shaft 19 is rotated by a bearing. A motor 22 is movably supported and a motor 22 is attached to the tip of the screw shaft 19. Further, the guide block 20 and the screw block 21 are attached with the respective cylinders 11 and 14 of the holding mechanism Fa and the chuck mechanism Ga. Then, by operating the motor 22, the screw shaft 19 is rotated to move the screw block 21, and the guide block 20 connected via the cylinder 14 is moved in the same direction by using the guide shaft 18 as a guide. as a result,
The holding mechanism Fa into which the tubular panty portion 1a of the sock is inserted and the chuck mechanism Ha are configured to move in the direction of the horn 5 shown in FIG. In addition, this transfer mechanism H
In a, the panty portion 1a is held and grasped and moved in the direction of the horn 5 and the anvil 6, but, for example, conversely, although not shown, the horn 5 and the anvil 6 are connected to the panty portion 1a.
However, the present invention is not limited to this embodiment.

Embodiment 2 As shown in FIGS. 7 to 9, the apparatus for carrying out the present invention comprises a holding mechanism Fb for inserting and mounting two tubular sock tubular panties 1a so as to face each other, and a tubular sock tubular. Clamping members 13 and 13 for gripping the two panty portions 1a as a pair of upper and lower parts.
Chucking mechanism Gb including the above, a cutting and welding mechanism I in which a heater and a receiving member can be crimped, and the cutting and welding mechanism I
Sock cutting welding means D comprising a transfer mechanism Hb that reciprocates the gripping members 13, 13 of the chuck mechanism Gb.
b, and a flat seam sewing machine that sewes the panty portion 1a of the sock cut and welded by the sock cutting and welding means Db.

The holding mechanism Fb is mounted on a fixed base 32 as shown in FIG. 7 instead of the structure of the first embodiment shown in FIGS. 1 to 3 and the cylinder 11 mounted on the guide block and the screw block. Except that it has the same configuration.

The chuck mechanism Gb is attached to a fixed base 32 as shown in FIG. 7, instead of the structure of the first embodiment shown in FIGS. 1 to 3 and the cylinder 14 attached to the guide block and the screw block. Except that it has the same configuration.

As shown in FIGS. 7 and 8, the sock cutting and welding means Db includes a cutting and welding mechanism I in which a heater 30 and a receiving member 31 are press-fittable, and a cutting and welding mechanism I of the chuck mechanism Gb. The heater 30 of the cutting and welding mechanism I, which includes a transfer mechanism Hb that reciprocates to and from the sandwiching members 13, 13.
And the receiving member 31 are inserted into the sandwiching member 13 of the chuck mechanism Gb, the heater 30 and the receiving member 31 are pressure-bonded to heat the tubular panty portion 1a, and the panty portion of the sock is cut and welded. is there.

As shown in FIGS. 7 and 8, the cutting and welding mechanism I is provided with a receiving member 31 which is pressure-bonded to the heater 30 at the lower portion of the holding frame 32, and guide shafts 34 are provided at both sides of the upper portion so as to be free. The lower part of the guide shaft 34 is fixed to the upper surface of the heater 30, the cylinder 35 is attached downward at the central position of the upper portion of the holding frame 32, and the piston rod part 35a is fixed to the upper surface of the heater 30. Cylinder 35
Is operated to lower the heater 30 by using the guide shaft 34 as a guide, and the heater 30 is pressed against the receiving member 31. A protrusion 33a is provided below the holding frame 33, and two guide shafts 36, which will be described later, are inserted in parallel to the protrusion 33a.

As shown in FIGS. 7 and 8, the transfer mechanism Hb has two guide shafts 36, 36 inserted in parallel between the upper ends of the fixed frame 38 formed in a substantially H shape when viewed from the side,
One of the lower protrusions 33a of the holding frame of the cutting and welding mechanism I is fixed to the guide shaft 36, and the other is loosely engaged through a slide bearing. Further, one of the protrusions 38a of the fixed frame 38 is connected to the guide shaft 36. 36, and the other is loosely fitted through a slide bearing. Further, the fixed frame body 38 has a guide shaft 36.
A cylinder 39 is attached in parallel with, and a piston rod portion 39a of the cylinder is attached to a lower portion of the holding frame 33. Then, the piston rod portion 39a is extended by the operation of the cylinder 39 to move the holding frame 33, that is, the cutting and welding mechanism I to the position shown by the chain double-dashed line in FIG. 7, and is returned to the original position by the reverse operation of the cylinder 39. It was done. Although the transfer mechanism Hb is configured to move the cutting and welding mechanism I in the embodiment, for example,
The cutting welding mechanism I may be fixed and the holding mechanism Fa and the chuck mechanism Ga may be moved, and the present invention is not limited to the present embodiment.

A flat seam sewing machine is generally a machine in which two cloths are butted and sewn with four or six needles.
It is characterized in that it is wide and has a flat shape on both the front and back sides. In the present invention, a known flat seam sewing machine is used.

Next, the operation will be described. Example 1 First, the tubular panty portions 1a of the two socks 1 are attached as shown by the chain double-dashed lines in FIGS. 2 and 3. Then, the cylinder 11 of the holding mechanism Fa and the cylinder 14 of the chuck mechanism Ga are operated to move the two pairs of sock mounting members 10 upward and downward to extend the tubular panty portion 1a of the sock, as shown in FIG. At the same time, the gripping member 13 is moved up and down to grip the tubular panty portions 1a of the two socks. Then, the ultrasonic welding machine A is operated to activate the sock cutting welding means D.
The horn 5 is ultrasonically vibrated. Next, the motor 22 of the transfer mechanism Ha is operated to operate the holding mechanism Fa and the chuck mechanism G.
a pair of sock tubular panties 1a held by a and a are moved toward the horn 5 and the anvil 6,
Tubular panty part 1 of the sock between the horn 5 and the anvil 6
By passing through a, ultrasonic vibration is caused to instantaneously cut and weld the joint boundary surface of the tubular panty portion of the sock. Further, the tubular panty portion 1a of the sock is moved, the motor 22 is stopped by a limit switch or other detector at a position near the end of the tubular panty portion 1a, and the pressure applied by the pressure device 4 shown in FIG. 6 is released. In addition, the holding mechanism F
a cylinder 11 and a chuck mechanism Ga cylinder 1
4 is reversely operated to release the grip of the panty portion 1a, loosen the extension of the panty portion 1a, and pull out the sock 1. Then, the motor 22 of the transfer mechanism Ha is reversely operated to return the holding mechanism Fa and the chuck mechanism Ga to their original positions.

Next, the sock 1 to which the panty portion 1a is welded is hung on the flat seam sewing machine at the welded portion, and the panty portion 1a of the sock is sewn to close the panty portion, thus completing one step.

Embodiment 2 First, the tubular panty portions 1a of the two socks 1 are attached as shown by the chain double-dashed line in FIG. Then, the holding mechanism Fb
Cylinder 11 and chuck mechanism Gb cylinder 14
7, the two pairs of sock mounting members 10 are moved upward and downward to extend the tubular panty portion 1a of the sock and the gripping member 13 is moved upward and downward as shown in FIG. The tubular panty portion 1a of 1 is sandwiched and grasped. Next, the cylinder 39 is operated to extend the piston rod portion 39a, and the heater 30 and the receiving member 31 of the cutting and welding mechanism I are connected to each other as shown in FIG.
Move it to the position indicated by the two-dot chain line. Then, the cylinder 35 is operated to lower the heater 30 by using the guide shaft 34 as a guide, and the heater 30 is pressed against the receiving member 31 through the tubular panty portions 1a of the two socks to heat the tubular panty portion to heat the two sheets. The tubular panty portion 1a of the sock is cut (fused) and the cut portion is welded. Next, the cylinder 11 of the holding mechanism Fb and the chuck mechanism Gb
The cylinder 14 is reversely operated to release the grip of the panty portion 1a, loosen the extension of the panty portion 1a, and pull out the sock 1.

Next, the sock 1 to which the panty portion 1a is welded is hung on the flat seam sewing machine at the welded portion, the panty portion 1a of the sock is sewn together, and the panty portion is closed to complete one step. Then, the tubular panty portion 1a of the two socks in which the panty portion 1a is welded and sewn together
10 shows a single sheet as shown in FIG. 10, in which the line portion of the J portion is welded and flat seam sewing machine is applied.

[0028]

Since the present invention is constructed as described above, the panty portions of the two socks are cut and welded together, and then the flat seam sewing machine is hung and the seam is closed with a single layer. Compared with the conventional overlock sewing machine and flat seam sewing machine, the thickness of the seam is thinner and the appearance is better, so you can expect high quality products.

[Brief description of drawings]

FIG. 1 is a partially cutaway schematic front view showing an embodiment of an apparatus for carrying out the present invention.

FIG. 2 is a schematic top view of FIG.

FIG. 3 is a partially cutaway schematic front view showing a state in which the apparatus for carrying out the present invention is not operating.

FIG. 4 is a schematic side view showing a configuration of a horn and an anvil in an apparatus for carrying out the present invention.

FIG. 5 is a schematic side view showing another embodiment of the configuration of the horn and anvil in the apparatus for carrying out the present invention.

FIG. 6 is a simplified diagram showing an embodiment of an ultrasonic welding machine in an apparatus for carrying out the present invention.

FIG. 7 is a partially cutaway schematic front view showing an embodiment of an apparatus for carrying out the present invention.

FIG. 8 is a schematic top view of FIG.

FIG. 9 is a partially cutaway schematic front view showing a state in which the apparatus for carrying out the present invention is not working.

FIG. 10 is a schematic top view of the pantyhose showing a welded and flat seam sewing machine hanging portion.

[Explanation of symbols]

 A Ultrasonic welding machine B Ultrasonic oscillator C Ultrasonic welding machine body Da Socks cutting welding means Db Cutting welding mechanism E Socks chuck transfer means Fa holding mechanism Fb holding mechanism Ga chuck mechanism Gb Chuck mechanism Ha transfer mechanism Hb transfer mechanism I Cutting Welding mechanism J Part welded and flat seam sewing machine applied 1 Socks 1a Panty part of socks 3 Ultrasonic vibration system 3a Oscillator 3b Cone 4 Pressurizing device 5 Horn 6 Anvil 7 Fixing stand 10 Socks mounting member 10a Arm 11 Cylinder 13 Insert Member 14 Cylinder 17a Holder 17b Holder 18 Guide shaft 19 Screw shaft 20 Guide block 21 Screw block 22 Motor 30 Heater 31 Receiving member 32 Fixing stand 33 Holding frame 33a Holding frame projection 34 Guide shaft 35 Cylinder 35a Piston rod part 3 Guide shaft 37 slide bearing 38 fixed frame member 39 the cylinder 39a a piston rod portion

Claims (2)

[Claims] 1. A tubular panty portion of a sock is inserted and moved between a horn and an anvil of an ultrasonic welding machine, cut by ultrasonic vibration and welded, and then the welded portion is hung on a flat seam sewing machine. Then, the panty part of the sock is sewn together, and the panty part of the sock is closed. 2. A tubular panty portion of the sock is inserted between the heater and the receiving member, the heater and the receiving member are crimped to heat the tubular panty portion, and the panty portion of the sock is cut and welded. , A method of closing the panty part of the sock, characterized in that the welded part is hung on a flat seam sewing machine and the panty part of the sock is sewn together.