JPH03149081A - Plain cloth loading device - Google Patents

Abstract

PURPOSE:To automatically set plain cloth sheets to a sewing machine by constituting a loading device with a plain cloth clipper for gripping and tracting the leading edges of two plain cloth sheets to a sewing machine, and a cloth separation unit for causing the ingress of the aforesaid leading edges to upper and lower sides of a separation board in front of a sewing machine needle after separation. CONSTITUTION:When a gripper board 7 enters below a plain cloth sheet, an air cylinder 9 is actuated for expansion and the gripper board 7 is lifted, thereby scooping and holding the leading edge of the cloth sheet between the board 7 and a stopper 10. After confirming the holding of the cloth with a signal from a grip sensor 13, a gripper body 6 is moved left and even soft cloth can be moved without any twist and bend during the motion thereof. The air blown from blowing ports 16 and 17 has low pressure and, therefore, an upper cloth sheet changes its direction up and a lower cloth sheet changes its direction down. The cloth sheets enter upper and lower sides of a forward separation board 15. An air valve is opened and a cloth feed blower 20 starts air blowing in a slant downward direction, thereby guiding both leading edges of the cloth sheets under a needle 14 after the separation board 15.

Description

DETAILED DESCRIPTION OF THE INVENTION - (Industrial Field of Application) The present invention relates to aa**W1, and more particularly to means for feeding fabric to a predetermined position of an automatic sewing machine.

(Jubei's technology) Various automatic sewing machines have already been proposed for automating the sewing work of sewing cloth together. By individually adjusting the planar position of the two pieces of fabric to be sewn together, R11 is created according to the preset seam line.
1 is performed.

(Problem of the Invention) The present invention has been made in view of the above problems, and an object of the present invention is to automatically set a cloth to a predetermined position on a sewing machine.

(Means for Achieving the Object) The present invention provides a fabric clipper that grips the front edges of two superimposed fabrics fed to a sewing machine and pulls them toward the sewing machine, and The sewing machine is equipped with a fabric separation unit whose tip enters separately above and below a separation plate provided in front of the needle of the sewing machine.

(Function) By grasping and pulling the fRI& portion, even the flexible fabric moves smoothly toward the automatic sewing machine without twisting or folding. In addition, in this way, the fabric separation unit separates the fabric that has reached just below the needle into the upper and lower parts of the separating plate, so the sewing machine can position the separated fabric individually and start sewing immediately. .

(Example) Embodiments of the present invention are shown in FIGS. 1 to 8.

In Figure 1, 1 is an automatic sewing machine, 2 is an automatic sewing machine 1,
:□tLf-1k, 31 yoka 7. Yes, yes.

: is a fabric separation unit installed in front of Tfi of the automatic sewing machine 1 to grasp the fabric and pull it in the downward direction of the needle of the automatic sewing machine 1.

As shown in FIGS. 2 and 3, the fabric clipper 3 is a clipper that supports a clipper main body 6 at the tip of an arm 5 that projects above the table 2 from the side, and allows the clipper main body 6 to scoop up the fabric on the table 2. The hoom 5 is driven by a motor (not shown) via a timing belt 12 and runs along the table 2 in the left-right direction in FIG. 1.

As shown in FIG. 4, the clipper plate has a base end hingedly connected to the clipper body 6, and a lever 8 rigidly connected to the base end.
is connected to an air cylinder 9 provided in the clipper body 6. As a result, the clipper plate moves up and down on the hinge in accordance with the expansion and contraction of the air cylinder 9. On the other hand, a stopper 10 is fixedly provided on the lower surface of the clear bar main body 6 to grip the upper cloth between the clipper plate and the rotating clipper plate.

Further, the clear bar body 6 is provided with a clip sensor 13 having two air cylinders 11 for moving the clipper body 6 in the extension direction of the arm 5.

It is arranged in front of the separation plate 15. The dough separation unit 4 has an air jet nozzle 1 which is fixed on the table 2 and is directed towards the needle 14.
7, and an air jet port 16 supported above by the automatic sewing machine 1, air is jetted above and below the cloth entering between these, and the cloth is separated into upper and lower parts by the low pressure of the jetted air. It enters the upper and lower sides of the separation plate 15.

Incidentally, the F-jet port 16 is connected via an arm 19 to a rotating shaft of a torque futurator 18 supported by the own sewing machine 1, and the output of $1 is generated according to the rotation of the torque futurator 18.
It is rotationally displaced between an operating position directly above the air jet port 17, indicated by a solid line in the figure, and a storage position rotated by 180 degrees, as indicated by a chain line in the figure.

The automatic sewing machine 1 also includes a separation confirmation sensor that confirms whether the fabric has entered the upper and lower sides of the separation plate 15, and a separation confirmation sensor that guides the tips of the upper and lower fabrics that have passed through the separation plate 15 below the needle 14 by blowing air. A dough supply blower 20 is attached.

- The dough clear bar 3 and the dough separation unit 4 operate f! in response to a control signal output from a controller (not shown). The driving motor and the separation confirmation sensor of the separation unit 4 are connected to the controller via a signal circuit. In addition, electromagnetic air pulp is used to supply F to the F rings 9 and 11 of the dough clipper 3, the F jet ports 16 and 17 of the dough separation unit 4, the dough supply blower 20, and the torque fuctionator 18. The controller controls the opening and closing of each air pulp through a signal circuit.

In addition, in order to sew the fabric along a predetermined seam line, the automatic sewing machine 1 has a position adjustment device for individually aligning the planes of the fabric separated vertically by the separation plate 15. Be prepared for the side of. In addition, the cloth table 2
The transportation to all
The rear end of the cloth is held by a cloth edge control device 31. These conveyor 30, cloth edge control Hi 31, and automatic sewing machine 1' are provided as separate units.

Next, we will explain the process of fabrication 6. When the conveyor 30 conveys two pieces of fabric onto the table 2 in a horizontal cylinder, the controller and the fabric clipper 3, as shown in FIG. Then, the arm 5tjh is connected via the timing belt 12.
let

When the clipper plate attached to the clipper body 6 enters under the fabric, the air cylinder 9 is extended and driven to pull up the clipper plate and scoop up the R edge of the fabric. Then, after confirming that the material is being gripped by a human power signal from the clip sensor 13, the clipper body 6 is moved to the left in Fig. 1 while pulling the material.In this way, the front edge By grasping and pulling the parts, even flexible fabrics can be moved without twisting or buckling along the way.

On the other hand, the controller is connected to the separation unit 4) - spout 1
The air noil valves that supply air to ports 6 and 17 are opened, and the ejection ports 16 and 17 start blowing out air. Incidentally, the F-jet port 16 is set to the operating position simultaneously with the start of control by the controller.

The clipper body 6 moves along the side of the automatic sewing machine 1,
A part of the tip of the pulled cloth is F-spout ports 16 and 1.
Enter between 7 and 7. And this′+′+.

In the first row, the cloth changes its traveling direction to the F-jet downward direction at the upper and lower sides, and enters the upper and lower parts of the front separating plate 15, respectively. When the controller confirms the success of the separation based on the input signal from the separation confirmation sensors provided above and below the separation plate 15, the controller moves the F-pulp to the dough supply blower 20, and the dough supply blower 20 is directed diagonally downward. F-Start squirting. As a result, the tips of the fabric and cloth that have passed through the separation plate 15 are both guided below the needle 14.

When the tip of the cloth enters under the needle 14, the controller temporarily stops the clipper body 6, and
Expand 1. As a result, the clipper main body 6 is moved sideways,
In other words, move toward the automatic sewing machine 1 until the side edge of the fabric is ready for the automatic sewing machine 1! ! Enter the conditioning equipment.

Thereafter, the automatic sewing machine 1 adjusts the plane position of the material using the position ra adjustment device, presses the material using the presser foot 21, and starts sewing. On the other hand, the controller rotates the clipper plate downward by driving the air cylinder 9 to release the cloth, and moves the clipper body 6 to its original position. In addition, the torque controller 18 is driven, and the air outlet jjj,! , = is stored tj, placed and rotated!・
- When the automatic sewing machine 1 starts sewing R, an appropriate tension is applied to the fabric fed to the fabric sewing machine 1.

When the automatic sewing machine 1 finishes sewing, a new material is automatically set in a predetermined position of the automatic sewing machine 1 by the loading device, and the sewing work can be efficiently carried out one after another.

(Effects of the Invention) As described above, in the present invention, the fabric clipper grips and pulls the front edge of the stacked fabrics, so even flexible fabrics can be smoothly lowered with the needle without twisting or folding. move in a direction. In addition, the fabric separation unit separates the fabric that has reached just below the needle into upper and lower sections and supplies them to the upper and lower separation plates of the automatic sewing machine, so the automatic sewing machine can position these separately and immediately start agl. can. therefore,
It is possible to set the fabric on an automatic sewing machine without any manual work, and it is a useful technique for completely automating sewing work.

BRIEF DESCRIPTION OF THE DRAWINGS Figures 1 to 8 all show embodiments of the present invention.
The diagram shows an automatic sewing machine, fabric clipper, and fabric! A plan view of the entire sewing device showing the arrangement of the small trout unit, ii,,! 1 is a side view of the dough separation unit, FIG. 6 is a plan view,
FIG. 7 is a front view, and FIG. 8 is a flowchart illustrating the control contents of the control unit 0-2.

-1... Automatic sewing machine, 2... Table, 3-... Fabric clipper, 4... Fabric separation unit, 6... Clipper body, 7... Clipper plate, 14... Needle,
15... Separation plate, 16.17... F- spout.

Claims (1)

[Claims] A fabric clipper that grasps the front edges of two stacked fabrics fed to the sewing machine and pulls them toward the sewing machine, and a separation plate that holds the leading edges of these pulled fabrics in front of the needle of the sewing machine. A fabric loading device consisting of a fabric separation unit that separates and enters the fabric from above and below.