JP2526556Y2 - Sheet-like work folding device - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to a device for folding an edge portion of a sheet-like work such as cloth.

[Prior Art] Conventionally, an operation of folding an edge portion of a sheet-like work, for example, cloth, and sewing the folded portion is performed.

In this operation, an operator manually folded the edge of the cloth and sewed the folded portion with a sewing machine.

[Problems to be Solved by the Invention] However, conventionally, since the fabric is folded back by hand, the work is labor intensive, the amount of folded back becomes uneven, and the quality is varied. was there.

Therefore, this invention can reduce the work effort,
An object of the present invention is to provide a sheet-like work folding device capable of manufacturing a product with stable quality.

[Means for Solving the Problems] The present invention has been made in view of such a conventional problem, and is directed to a sewing apparatus that folds an edge portion of a sheet-like work upward and sew or welds the folded portion. A sheet-like work folding device to be used, comprising: a vertically movable work support member that supports the sheet-like work; and an end edge of the sheet-like work protruding from a side edge of the work-support member by a predetermined amount. Positioning means for positioning the workpiece in a state, and vertically movable on the work supporting member, and cooperating with the side edge of the work supporting member to clamp the vicinity of the edge of the sheet-shaped work in a lowered state. A work holding member, which is set on the side of the work holding member so as to be movable up and down relatively to the work supporting member, and to slide to the upper side of the work holding member; In a state where the workpiece is held by the holding member, the sheet holding member rises relatively to the work supporting member, folds the edge of the sheet-like work upward, and then slides onto the work holding member, thereby holding the work holding member. A bending jig that folds the sheet-like work edge portion between the member and the bending jig, and the bending jig includes:
In a state in which the edge of the sheet-like work is protruded by a predetermined amount, a vertical piece that makes contact with the edge is formed so as to be along the flow direction of the sheet-like work. .

[Operation] According to this means, the sheet-like work is first placed on the work supporting member, and the positioning means causes the edge of the sheet-like work to protrude from the side edge of the work supporting member by a predetermined amount. The edge of the sheet-shaped work abuts against a vertical piece formed on the bending jig in a state where it protrudes by a predetermined amount, and stops. At any point in the flow direction, the tip of the protruding portion abuts the vertical piece substantially evenly, so that the edge portion extends along the flow direction of the sheet-like work,
It will be located on the bending jig.

Then, the work holding member is lowered to raise the bending jig relatively to the work supporting member and the like while the sheet-like work is sandwiched between the work supporting member and the sheet-like work. Then, the edge of the sheet-like work is first bent upward by the bending jig.

Next, when the work holding member is positioned below by the bending jig, this time, the bending jig is moved to above the work holding member so that the edge of the sheet-like work is bent with the work holding member. The sheet-like work edge is folded upward by being sandwiched between the tool and the tool.

In this way, the edge of the sheet-like work can be automatically folded back by a predetermined amount, so that the operator does not need to manually fold the edge, and the amount of folding can be kept at a predetermined value. The quality will be stable.

Moreover, the sheet-like work whose edge is folded by a predetermined amount is slid along the vertical piece forming direction as it is, so that the sewing direction of the sewing machine or the like disposed downstream in the flow direction can be changed by the sheet. Since the flow direction of the workpiece can be made to coincide with the flow direction of the workpiece, sewing can be performed simultaneously with the feeding of the workpiece. For this reason, it is easy to improve the positioning accuracy, and when the part folded in two is sewn by the sewing machine, it can be sewed with a small amount of folding and the appearance quality can be improved.

[Example] Hereinafter, the present invention will be described based on an example.

 Each figure shows an embodiment of the present invention.

As shown in FIG. 2, the sheet-like work folding device 1 of this embodiment is used in a sewing device 2.

The sheet-like work folding device 1 has a work supporting member 4 on which the sheet-like work 3 is placed, and positioning means 5 for positioning the sheet-like work 3 at a predetermined position of the work supporting member 4.

The work supporting member 4 has a rectangular plate shape, and a base end 4a is disposed on a base 7 by a hinge 6 so as to be rotatable in a vertical direction, and is attached upward by a spring 8 disposed on the back side. (See FIG. 1).

As shown in FIG. 2, the positioning means 5 is provided with a reference plate 9 movably arranged up and down, and is arranged opposite to the reference plate 9 so as to be moved forward and backward by a cylinder 10 in the direction of the arrow. A first pressing plate 11, a vertical piece 12a of a bending jig 12 (details will be described later) along a flow direction (the direction of arrow A in FIG. 2) of the sheet-like work 3, and opposing the vertical piece 12a. A second pressing plate 14 which is moved forward and backward by the cylinder 13.

As a result, as the first and second pressing plates 11 and 14 advance, the sheet-like work 3 is positioned so as to be pressed until it comes into contact with the reference plate 9 and the vertical piece 12a.

Further, reference numeral 15 in the drawing denotes a work holding member that holds the sheet-like work 3 in cooperation with the tip 4b as a side edge of the work support member 4. The work holding member 15 has an L-shaped cross section, and is set to be rotatable about a hinge 16 by a motor 17.

A folding jig 12 for folding the edge 3a of the sheet-like work 3 in cooperation with the work holding member 15 and the work support member 4.
Has a substantially inverted T-shaped cross section, and is formed of a horizontal plate portion 12b and the above-described vertical piece 12a. The bending jig 12 is moved on the set adjusting plate 19 by the cylinder 18 shown in FIG. 2 in the direction of the arrow (the direction perpendicular to the workpiece moving direction A).
Is provided slidably.

The operation of the sheet work folding device 1 having such a configuration will be described together with the operation of the sewing device 2.

First, the sheet-like works stacked on the work placing table 20 are picked up and conveyed one by one from above by a work picking jig 21 and set on the work supporting member 4.

The work picking jig 21 has an opening / closing plate 21a having a U-shaped cross section.
Are provided with a plurality of needles 21b.
At the time of closing operation at 22, the sheet-like work 3 is pierced by the needle 21b and picked up. And
When the work picking jig 21 advances in the direction of arrow A and is positioned on the work support member 4, both open / close plates 21a are opened and the sheet-like work 3 is set on the work support member 4. (Sheet work 3 is not shown in FIG. 2).

Sheet work 3 set on work support member 4
Is pressed by the first and second pressing plates 11 and 14 to make contact with the reference plate 9 and the vertical piece 12a, and set at a predetermined position. At this time, the reference plate 9 is at the lowered position.

Thus, the edge 3b of the sheet-like work 3 is attached to the vertical piece 12a.
Are brought into contact with each other, so that the tip 4b of the work supporting member 4 is
As a result, the edge 3a of the sheet-like work 3 protrudes by a predetermined amount (see FIG. 1A).

From this state, the work holding member 15 is rotated to pinch the vicinity of the edge 3a of the sheet-shaped work 3 between the work holding member tip 4b and the work holding member 15 is further lowered. The work supporting member 4 is turned downward against the urging force of the spring 8. When the work supporting member 4 is located below the bending jig 12, the edge 3a of the sheet-like work 3 is bent upward (see FIG. 1B).

When the work holding member 15 is positioned below by the bending jig 12, the bending jig 12 is slid by the cylinder 18 onto the work holding member 15 in the direction of the arrow in FIG. By this sliding, the edge 3a of the sheet-like work 3 is folded while being sandwiched between the bending jig 12 and the work holding member 15.

By folding back the sheet-like work 3 in this manner, it is not necessary to turn back the edge 3a by manual work as in the related art, so that the workability is good and the positioning means 5 is provided.
As a result, the amount of turnback is constant and the quality is stable.

When the turning operation is completed in this manner, the reference plate 9 is raised, and the sheet-like work 3 is moved by the first pressing plate 11.
Is pressed in the direction of arrow A, and is slid with the edge 3a folded back in two while holding a predetermined amount of fold. Then, when the edge 3a is folded in two under the sewing machine 23 provided downstream of the sheet-like workpiece 3 in the flow direction A, this position is detected by a sensor (not shown). When the sewing machine 23 is detected, the sewing machine 23 is lowered, the folded portion of the edge 3a is sewn, sequentially sent out in the direction A, and is conveyed to the work organizing device 25 by the rolling of the plurality of rollers 24. During this time, the sewing thread is cut by the cutter 26.

 Thus, the sewing operation is performed.

The edge 3a is a sheet-like work 3 folded back by a predetermined amount.
Is slid as it is along the vertical piece forming direction to reach the lower side of the sewing machine 23, and since the sewing direction of the sewing machine 23 matches the flow direction A of the sheet-like work 3, the sheet Sewing can be performed simultaneously with the feeding of the workpiece 3. For this reason, it is easy to improve the positioning accuracy, and when the part folded in two is sewn by the sewing machine, it can be sewed with a small amount of folding and the appearance quality can be improved.

In the above-described embodiment, the work supporting member 4 is set so as to move up and down.
12 can be moved up and down so as to be raised with respect to the work support member 4 so that the edge 3a of the sheet-like work 3 can be bent.

[Effects of the Invention] As described above, according to the invention, a vertically movable work support member for supporting a sheet-like work, and an edge of the sheet-like work from a side edge of the work support member. Positioning means for positioning in a state in which it is fixedly protruded, and disposed vertically movable on the work support member,
A work holding member for holding the vicinity of the sheet-shaped work edge in cooperation with the work supporting member side edge; and a side movable to the work holding member, capable of vertically moving relative to the work supporting member, and , Is set to slide to the upper side of the work holding member.
The sheet-like work edge is raised relative to the work supporting member, and the sheet-like work edge is bent upward. By having a folding jig that folds in between, it is possible to automatically fold the sheet-like work by automatically setting the fold amount of the edge portion to a predetermined amount instead of manual work as in the related art, By stabilizing the folding quality, a practically useful effect that sewing can be performed with a small folding amount and the appearance quality can be improved is exhibited.

[Brief description of the drawings]

Each drawing is a view showing an embodiment of the sheet-like work folding device of the present invention. FIG. 1 is a cross-sectional view showing the operation of folding the edge of the sheet-like work, and FIG. 2 incorporates the sheet-like work folding device. FIG. 3 is a perspective view showing the sewing apparatus thus folded, and FIG. 3 is a perspective view showing a sheet-like work folding apparatus. DESCRIPTION OF SYMBOLS 1 ... Sheet-like work folding device 3 ... Sheet-like work 3a ... Edge part 4 ... Work support member 4b ... Tip part (side edge part) 5 ... Positioning means 12 ... Bending jig 15 ... … Work holding member

Claims (1)

(57) [Scope of request for utility model registration] 1. A sheet work folding device used in a sewing device for folding an edge portion of a sheet work upward and sewing or welding the folded portion, wherein the sheet work is supported. A vertically movable work support member, positioning means for positioning the edge of the sheet-like work in a state of projecting a predetermined amount from a side edge of the work support member, and a vertically movable movement on the work support member A work holding member that is disposed and cooperates with the work supporting member side edge in the lowered state to pinch the vicinity of the sheet-like work end edge; and the work supporting member is located beside the work holding member. Relative to the workpiece support member, and is slid to the upper side of the work holding member, and rises relative to the work support member in a state where the work is held by the work holding member. A bending jig that bends the sheet-shaped work edge upward, and then slides over the work holding member to fold the sheet-shaped work edge between the work holding member and the work jig. Having the bending jig,
A sheet-like workpiece folded back, wherein a vertical piece that abuts the edge is formed along the flow direction of the sheet-like work in a state where the edge of the sheet-like work protrudes by a predetermined amount. apparatus.