JPS6321909A - Apparatus for adhering cloth piece - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used in the field of sewing technology, particularly for bonding fabric pieces that are stacked one on top of the other and are dot-glued at predetermined locations to automatically regrow them. Regarding equipment.

PRIOR TECHNOLOGY Problems When sewing pieces of fabric cut into roughly the same shape overlapping one another, for example, the gore part sewn to the front body of men's underwear such as briefs has one side of the fabric piece exposed. , the other is placed face down and sewn between the front crotch and the front crotch to form a so-called front opening. This type of fabric piece is very flexible and easily changes shape, so when overlapping both pieces of fabric before sewing, be careful not to misalign the two pieces of fabric.
It is necessary to secure multiple locations. Incidentally, in recent years, there has been a movement to automate the cutting and stacking of fabric pieces, and the present applicant proposed such a proposal in Japanese Patent Application No. 60-247688.

However, even if the cutting and stacking of fabric pieces can be automated, there remains the problem that it is difficult to automate the process of gluing two fabric pieces together. In other words, even if proper overlapping is achieved, in the case of briefs, etc., it is necessary to secure at least multiple places around the gore, so it is not recommended to automatically point-stitch the overlapping parts of the fabric pieces. It was extremely difficult, and manual work was still required to secure the gusset. In addition, attempts have been made to automatically apply dot gluing to overlapping pieces of fabric, but the gore parts are generally cut to a predetermined curvature, and when applying the gore, it is necessary to avoid the front part. The periphery of the gore part had to be glued, and it was extremely difficult to determine the bonding position. In addition, the fabric pieces are highly flexible and
Because they are easily deformed, even if they are properly overlapped, there is often a slight positional shift on the conveyance line. Therefore, in order to achieve proper gusseting, the positional shift must be corrected again manually. However, there was a drawback that complete automation was difficult to achieve.

The present invention was made to solve the above-mentioned problems, and is an apparatus for automatically gluing pieces of fabric stacked one above the other at predetermined positions. forming an opening to open between the upper and lower fabric pieces by lifting; correction means for moving the upper fabric piece of the opening to finely adjust the overlapping position with the lower fabric piece; and the overlapping fabric pieces. an adhesive means for adhering a predetermined position of the fabric piece, and a positioning means for moving the opening forming means, the correction means, and the adhesion means in the conveying direction of the fabric piece and a direction intersecting therewith to set the adhesion position of the fabric piece. The gist of this is that

When the fabric pieces stacked one above the other are placed on the conveyor table,
The fabric pieces are transported to the gluing device. When the positioning means is driven, the aperture forming means, the correction means, and the adhesion means move in the conveyance direction of the fabric piece and in a direction orthogonal to the conveyance direction, thereby positioning the adhesion point. After positioning, when the opening forming means is actuated, the upper fabric piece is lifted to create an opening between the upper and lower fabric pieces. When the correcting means is actuated, the lifted upper fabric piece is moved and the superposition of the lower fabric piece and the upper fabric piece is adjusted. When the bonding means is activated, predetermined positions of the overlapped fabric pieces are dot bonded.

The present invention will be explained below with reference to Examples.

Leaving - Family Ichimasu Embodiments of the present invention will be described below based on the drawings.

Fig. 1 is a perspective view showing the entire fabric piece bonding device;
The figure is a perspective view showing the main parts of the device.

The fabric pieces applied in this embodiment are the gore parts sewn to the front body of briefs, etc., and are the upper fabric piece b and the lower fabric piece b.
t is cut into approximately the same shape.

A pair of fabric piece bonding devices are provided on both sides of a conveyor table 1 placed in an automated line of a sewing machine, and the main parts include a positioning device 2, an opening forming device 3, a correction device 4, and a bonding device 5. It is equipped with a gripping mechanism 6 and a control section 7.
etc. are attached.

In addition, in the following explanation, the Y axis refers to the conveyance direction of the dough piece, the left-right direction in FIGS. 1 to 3, and the X axis refers to the Y axis.
In the direction perpendicular to the axis (vertical direction in the figure), front means the right side in the figure, rear means the left side in the figure, left means above the figure, and right in the figure means the lower side in the figure. shall be taken as a thing. Furthermore, since the fabric piece bonding devices disposed on both the left and right sides of the conveyance table are the same on the left and right sides, the device on the right side in the drawings will be described below.

The conveyor table 1 extends in the Y-axis direction, and is connected to a conveyor motor l.
It is equipped with a plurality of pulleys lb, lc and a conveyor belt (ld), etc., and a fabric piece bonding device is disposed approximately in the center. The transport motor 1a is fixed near the front end 1e of the transport table 1, and the shaft end of this transport motor is pivotally supported by the side wall of the transport table l. On this shaft, two pulleys lb, lb are arranged side by side at a predetermined interval, while pulleys lc, lc are also arranged side by side on the shaft supported by both walls on the rear end 1f side of the transport platform 1. has been done. Between the respective pulleys 1b and 1c facing each other, there is a conveyor bell 1-1d having a clothing that allows the pieces of fabric to come into close contact with each other.

1d is tensioned, and the fabric piece can be conveyed a predetermined distance to the bonding position according to the size of the fabric piece, for example, M, L dimensions, etc., by driving the conveyance motor 1a.

The positioning means 2 is for setting the adhesion position of the transported fabric piece, and includes a Y-axis motor 2 a s X-axis motor 2 b
etc., and is arranged approximately at the center of the conveyor belt 1d. The Y motor 2a is fixed approximately at the center of the conveyor table 1, and a belt is connected between the pulley of this motor 2a and a pulley that is parallel to the conveyor belt (1d) and is pivotally supported on the rear end 1f side of the conveyor table 1. 1-2C is under tension. And this belt 2
A part of the lower surface of the Y-axis plate 2d, which has a substantially rectangular shape and has a concave notch 2e facing the conveyor belt (conveyor belt) ld side, is locked in the straight part of C. Brake) 2d is movable in the Y-axis direction. Furthermore, an end portion of a Y-axis frame 2f bent in an inverted shape is fixed to the upper surface of the Y-axis plate 2d, and an X-axis
A shaft plate 2g is mounted and is slidable on the Y-axis frame 2f.

The X motor 2b is fixed near the Y motor 2a, and a bell 2h is connected between the pulley of the motor 2b and a booby which is perpendicular to the conveyor belt 1d and fixed to the Y axis plate 2d. I'm nervous. And this bell) 2h
A part of the lower surface of an X-plate 2g, which has a substantially rectangular shape and is disposed above the Y-axis plate 2d, is engaged with the straight part of the X-axis plate 2g, and the X-axis plate 2g is moved in the It is possible to move to. Further, a through hole is formed in the X-axis plate 2g, and an ultrasonic vibrator 5a of the adhesive means 5, which will be described later, is fitted into and held in this through hole. In addition,
The lower end of an X-axis arm 21 whose upper end is connected to an aperture forming means 3 and a correction means 4, which will be described later, is fixed to the upper part of the ultrasonic transducer 5a, and drives the Y motor 2a and the X motor 2b. Accordingly, the bonding position can be set by linking the bonding means 5, the opening forming means 3, and the correction means 4.

The opening forming means 3 creates an opening between the upper fabric piece and the lower fabric piece b2, and consists of a fixed clothing 3a, a movable clothing 3b, and a plurality of cylinders 3c, 3d, 3e, etc. It is arranged above the positioning means 2 on the side of the conveyor belt 1d.

As shown in FIG. 3, the fixed and movable clothing 3a and 3b each have a substantially rectangular support plate bent on the lower surface, with the fixed clothing 3a side bent in an inverted dogleg shape and the movable clothing 3b side bent in a dogleg shape. A wire brush-like clothing is integrally formed with flocked needles. A loft end portion of a fixed cylinder 3C provided upright on the conveyor table 1 is fixed to the upper surface of the fixed clothing 3a, and is movable up and down. On the other hand, the rod end of a movable cylinder 3d disposed parallel to the conveyor belt 1b is fixed to the side surface of the movable clothing 3b, making it movable in the Y-axis direction. Further, the rod end of a vertically movable cylinder 3e, which is installed in the vicinity of the fixed cylinder 3C, is fixed to the rond of this movable cylinder 3d, and by driving each cylinder, the upper piece of dough is lifted upward and the lower dough piece is lifted up. It is configured to create an opening between the two pieces. Incidentally, above the fixed and movable clothing 3a, 3b, a photosensor 3f having a light projecting part and a light receiving part is provided to detect the lifted state of the upper fabric piece b1.

The correction means 4 moves the upper fabric piece b1 to correct the overlapping of the upper and lower fabric pieces b1, and is composed of a stepping motor 4a, a frame 4b, etc., and is arranged above the opening forming means 3. has been done. stepping motor 4
A is fixed to the upper part of the conveyor table 1, and a belt 4C is tensioned between the pulley of this motor 4a and a pulley pivotally supported near the fixed cylinder 3C. frame 4b
has a substantially triangular shape, and its tip end on the opening forming means 3 side is fixed to the fixed cylinder 3C and the vertical movement cylinder 3e, respectively, while its rear end on the stepping motor 4a side engages with the linear part of the bell) 4C. The opening/closing means 3 is moved in the X-axis direction by the rotational drive of the stepping motor to open the upper and lower fabric pieces, b2, edge b3. It is possible to finely adjust the overlapping state of b.

The adhesive means 5 is for dot-bonding the stacked upper and lower fabric pieces bI+b2 at predetermined positions, and is comprised of an ultrasonic vibrator 5a, an adhesive tape feeding mechanism 5b, etc., and is arranged near the positioning means 2. The open acoustic wave vibrator 5a has a substantially cylindrical shape, and an exponential function horn 5C having a tapered surface with a predetermined curvature is attached to the upper part. And this horn 5C
A point setting cylinder 5d is erected directly above the point setting cylinder 5d, and the upper and lower fabric pieces bl are placed between the end of the rod 5e of the cylinder 5d and the tip of the horn 5C.

It is designed to sandwich b2 and dot bonding.

The horn 5c and the point setting cylinder 5d are connected by the X-axis arm 21, and the X-axis arm 21 is connected to the
Together with the shaft plate 2g, it is possible to absorb vibrations when the ultrasonic transducer 5a is driven.

The adhesive tape feeding mechanism 5b is arranged on the side of the ultrasonic vibrator 5a, and includes a reel 5f for winding an adhesive tape made of nylon, synthetic resin, etc., and a feed mechanism for feeding the adhesive tape leftward from the reel 5f. It is equipped with a cylinder 5g, a positioning cylinder 5h for setting the feeding length, a tape end photo 51 for detecting the end of the adhesive tape, etc., and is configured to insert the adhesive tape into the openings of both the fabric pieces A and b2. ing.

The gripping mechanism 6 holds the transported upper and lower fabric pieces bI+b2 at a predetermined position, and is composed of a sabaki plate 6a, an under plate 6b, etc., and is disposed above and below the transport belt 1d. Sabaki play) 6a is a rectangular plate whose vertical width is approximately equal to the length of the dough piece. The rond end of the Sabaki plate cylinder 6C, which is erected above the conveyor belt ld, is fixed to the top surface.
The drive of the cylinder 6C presses the center of the upper and lower fabric pieces, bt, which are being conveyed, thereby making it possible to prevent the upper fabric pieces from shifting laterally when they are lifted.

The under plate 6b has a substantially rectangular shape and has a brush-like chemical clothing 6d integrally formed on its upper surface. A rond end of an underplate cylinder 6e disposed below the conveyance bell) ld is fixed to the lower surface, and when the cylinder 6e is driven, it appears on and retracts from the surface of the conveyance guide (not shown), and the upper fabric When the piece is lifted, the lower dough piece b
2 is held in close contact to prevent it from rising.

The control section 7 automatically controls the process of bonding the fabric pieces, is mainly composed of a computer, and is equipped with a line sensor 8 shown in FIG. 1. This line sensor 8 is equipped with a line camera and is located on the rear end 1f side of the transport platform 1 (transfer bell) l.
It is arranged above d to detect the size, shape, and overlapping state of the upper and lower fabric pieces , , b passing within the detection field of view, and sends a detection signal to the control section 7 .

In addition, upon receiving the signal from the line sensor 8, the control section 7 sends a control signal to each section such as the positioning means 2, the opening forming means 3, the correcting means 4, the adhesion means 5, and the gripping mechanism 6. Control is performed such that predetermined locations of the upper and lower fabric pieces (b2) are automatically dot-glued and then transported to the next processing step.

Next, the adhesion work process of this example will be explained.

■ When the upper and lower fabric pieces bI+b2 which have been overlapped in advance are placed on the transport bells) 1d and ld on the rear end 1f side of the transport table 1, and are transported to the front end le side by the drive of the transport motor 1a, The line sensor 8 separates the upper and lower fabrics, b
The size, shape, overlapping state, etc. of , are recognized,
The detection signals are sequentially sent to the control section 7. Then, when the first bonding points of the upper and lower fabric pieces b1 and b2 are conveyed to the vicinity of the bonding means 5, the conveyance motor 1a is stopped.

■ When the control unit 7 calculates the appropriate bonding point based on the detection signal, it outputs an operation signal to the positioning means 2 and Y
The axis motor 2a and the X-axis motor 2b are driven to move the Y-axis plate 2d in the Y-axis direction within the range regulated by the width of the notch 2e, and the X-axis plate 2g is moved in the X-axis direction to bond. The means 5, the opening forming means 3 and the modifying means 4 are arranged at predetermined positions of the first bonding point.

(2) When the sabaki plate cylinder 6C is driven, the sabaki plate 6a descends and comes into contact with the upper surface of the upper dough piece b1, pressing the center of this dough piece b1 over substantially the entire length.

■ When the under plate cylinder 6e is driven, the under plate 6b rises and touches the edge b4 of the lower dough piece b2.
Contact and close contact with.

■ When the fixed cylinder 3c and the vertically movable cylinder 3e are driven simultaneously, the fixed and movable clothing 3a, 3b descend and come into contact with the edge of the upper fabric piece, pushing the upper fabric piece downward slightly. to press.

As a result, the upper and lower fabric pieces A, b are gripped.

■ When the movable cylinder 3d is driven to move the rod backward, the movable clothing 3b moves in the direction of conveying the fabric piece, and the upper fabric piece between the fixed and movable clothing 3a and 3b is slightly tensioned. , is held in a state where it is hooked onto both clothing cloths 3a and 3b (see Fig. 3).

(2) When the fixed and vertically movable cylinders 3c and 3e are moved back, the fixed and movable clothing 3a and 3b rise, and the upper fabric piece b1 held by both clothings is lifted. At this time, the lower fabric piece b2 is held in close contact with the underplay) 6b, so the upper fabric piece b2 and the lower fabric piece b2
An opening with a predetermined width is formed between each edge b3 and b4. At this time, the holding state of the upper fabric piece is detected by the photosensor 3f, and if the upper fabric piece cannot be held, the operation of lifting the upper fabric piece is performed again.

■ When a correction pulse signal is supplied and the stepping motor 4a is driven according to the overlapping state of the upper and lower fabric pieces, b2, the upper fabric piece is lifted and moved in the X-axis direction, and the lower fabric piece is The position of the edge of the upper fabric piece b1 is adjusted directly above the edge b4 of the piece b2, and the overlapping state of the upper and lower fabric pieces b2 is corrected.

(2) When the feed cylinder 5g and cylinder 5h are driven, the ends of the adhesive tape are inserted into the openings of the upper and lower dough pieces, b2.

■ Drives the fixed cylinder 3c, vertically movable cylinder 3e and movable cylinder 3d, and controls the fixed and movable clothing 3a, 3b.
At the same time, the movable clothing 3b is moved in the opposite direction to release the tension on the upper fabric piece b2, and the opening between the upper fabric piece b2 and the lower fabric piece b2 is closed to sandwich the adhesive tape.

(2) Drive the point setting cylinder 5d to sandwich the upper and lower fabric pieces , , b between the tip of the horn 5c of the ultrasonic vibrator 5a and the end of the loft 5e.

@ When the ultrasonic vibrator 5a is energized, the adhesive tape is melted by vibration frictional heat, and the upper fabric piece b1 and the lower fabric piece b2 are separated.
At the same time, the ends of the adhesive tape are cut.

■ The bond shifting cylinder 5d moves back to raise the rod 5e, and the Sabaki plate cylinder 6c
Then, the under plate cylinder 6e is lowered to release the upper and lower fabric pieces, b2 from being held.

o Drive the transport motor 1a to move the transport bell) ld to the front end l
Move it to side e, and position the second bonding point of the upper and lower fabric pieces, b2, near the bonding means 5. Note that the gluing work is performed in parallel using the same operation in the gluing device disposed on the left side of the conveyor table 1, and both edges of the upper and lower fabric pieces A, b2 are point-glued.

[Phase] Next, when the bonding work at the second bonding point is completed,
In this example, the upper and lower fabric pieces, b2, are dot-bonded at four points at predetermined intervals, and the vicinity of the edges of the briefs, excluding the front opening, are accurately gusseted.

Thereafter, the piece of fabric is conveyed to the front end 1e side of the conveyor table 1, and the next piece of fabric is carried in, and automatic bonding is repeated.

Although this embodiment has been described with reference to the case where briefs and the like are secured by dot gluing, it is of course applicable not only to underwear but also to a wide variety of applications in which pieces of fabric such as clothing are sewn together in layers. .

As can be understood from the above explanation, according to the dough piece gluing device of the present invention, the upper dough piece of the dough pieces stacked one above the other can be lifted up in the process of gluing the dough pieces, etc. An opening is created in a part of both fabric pieces, and an adhesive or the like is inserted into this opening and the predetermined locations of both the upper and lower fabric pieces are dot-bonded, thereby automating the gluing work of at least two stacked fabric pieces. becomes possible.

Further, when opening the upper and lower fabric pieces, the overlapping is finely adjusted to automatically correct positional deviations, so manual correction of positional deviations is avoided and the fabric pieces can be bonded accurately. Furthermore, the gluing points are automatically set according to the size of the fabric pieces, and multiple points can be glued almost simultaneously, which speeds up the work of gluing fabric pieces and dramatically improves the workability of the sewing process. It has excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a fabric piece bonding device showing an embodiment of the present invention, Fig. 2 is a perspective view showing the main parts of the device, and Fig. 3 is an explanatory diagram showing the operation of opening the fabric piece. be. 1...Transportation table, 2...Positioning means, 3...
- Opening forming means, 4... Correction means, 5... Adhesive means, 7... Control unit, 8... Line sensor, b...
・Fabric pieces.

Claims (1)

[Claims] A device for automatically gluing fabric pieces stacked one above the other at a predetermined position, the device forming an opening by lifting a part of the upper fabric piece to open between the upper and lower fabric pieces, and forming an opening between the upper fabric piece and the upper fabric piece at the opening. a correction means for finely adjusting the overlapping position with the lower fabric piece by moving the part; an adhesive means for adhering the overlapped fabric pieces at a predetermined position; 1. A device for gluing fabric pieces, comprising positioning means that moves in the conveyance direction and a direction crossing the conveyance direction to set the bonding position of the fabric pieces.