JPH03228792A - Curtain length setting sewing machine - Google Patents

Abstract

PURPOSE:To improve the sewing efficiency of a curtain and easily obtain upper and lower parallel seams without requiring a skill by moving a running sewing machine for sewing the end section of a curtain fabric along the lower face of a curtain pinching table in which a fabric receiving table is faced forward. CONSTITUTION:A horizontally running cutter 26 is run from one end to the other end in the width direction to cut a curtain fabric F horizontally between the first table plate 19 of a curtain pinching table 21 and a pad plate 29 below, i.e., between upper and lower presser bars 31, 32, then the piston rod 14 of a table air cylinder 13 is protruded downward, and a curtain air cylinder 13 at the downward position is rotated by 90 deg. to the forward position. The end section of the curtain fabric F is slightly protruded from the end edge of the first table plate 19, a running sewing machine 40 on the side of a stanchion 1 is run under this condition, a core tape 50 is overlapped on the end section of the curtain fabric F protruded from the front end section of the second table plate 20, the overlapped sections are sewn along the edge, and the core tape 50 is sewn.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a length determining sewing device for cutting a curtain to a desired length and sewing the cut ends together.

(Conventional technology) The method for sewing curtains is to wrap one end of the curtain material (the part that will become the hem when the curtain is hung), which has been cut slightly longer than the predetermined length three times, and then sew the hem. , hang this curtain fabric with the hem seam facing up and spread it out in the width direction, cut the lower part of this curtain fabric horizontally at the desired height, and then hang this curtain fabric with the hem seam facing up. There is a method in which the core tape is removed and carried to an overlock sewing machine, a core tape made of synthetic resin film is layered on the top of the core tape, and the edges are sewn together.Furthermore, this core tape is folded to wrap around the core tape and sewn together. Are known. FIG. 4 shows a curtain fabric F with interlining, where Fa is the hem seam part, Fb is the interlining part, and S is the interlining tape.

(Problem to be Solved by the Invention) However, in the above method, the curtain fabric is hung from above, its length is determined, and then it is removed and carried to a sewing machine in a different position, where the direction of the curtain fabric is adjusted again. After determining the position, the tape is manually layered on the top of the curtain fabric, and the curtain fabric is pulled while stitching, which is inefficient and has low productivity, and the seams tend to bend, requiring skill. There was a problem.

The present invention provides a device that can immediately sew the cut ends after cutting curtain material to a desired length while hanging it. It can be easily obtained without the need for.

(Means for Solving the Problems) The curtain length determining and sewing device of the present invention is a curtain hanging beam that can be raised and lowered, and is provided with a clip for holding curtain fabric in a spread state on the front side of a beam that is long in the width direction. and a horizontal running cutter installed below the curtain hanging beam to cut the lower end of the curtain fabric suspended from the curtain hanging beam in the width direction at a desired height. A curtain clamping table, which is made of two long openable and closable plates and can pivot between a downward position and a forward facing position with the width direction axis as a fulcrum, is installed. The present invention is characterized in that a traveling sewing machine for stitching the curtain end portion protruding from the front end of the clamping table is provided with a cloth holder so that the table moves along the lower surface of the curtain clamping table in the forward position.

(Function) Lower the curtain hanging beam, operate the clip on the front of it, and hang one end of the curtain fabric, which has been cut slightly longer than the predetermined length and has been either hemmed or hemmed, into the curtain. Fix the curtain fabric to the hanging beam while spreading it in the width direction. Next, this curtain hanging beam is raised to a desired height, and the lower part of the curtain fabric is passed between the two open plates of the curtain holding table in the downward position and guided to the front of the horizontally traveling cutter below. After the curtain clamping table is closed and the lower part of the curtain fabric is clamped, the cutter is driven to horizontally cut the lower end of the curtain fabric protruding below the curtain clamping table at a predetermined height. Next, this curtain clamping table is turned 90 degrees to a forward position, and then the traveling sewing machine in front is run to sew up the end of the curtain fabric protruding from the front end of the curtain clamping table, and after this sewing is completed, the curtain is closed. Open the clamping table and take out the lower end of the curtain fabric. In addition, when sewing with the above-mentioned traveling sewing machine, if the part held by the upper curtain hanging beam is hemmed, it will be interlined,
On the other hand, if the garment is tied up, the hem is sewn.

(Example) In FIG. 2, ``■'' is a column of a portal frame, and the middle portions of the left and right columns 1 and 1 are connected by an intermediate beam 2. Above this intermediate beam 2 are the above-mentioned left and right columns 1.1.
A curtain hanging beam 3 (see Fig. 1) that can be raised and lowered along the opposing surface is provided, and both ends of the beam are connected to a chain (not shown) that rotates in the vertical direction by a motor. It can be stopped at any height. A backing plate 4 in contact with the curtain fabric F is fixed to the front surface of the curtain hanging beam 3 (the right side in FIG. 1 is the front), and its upper edge is bent forward to form a projecting edge 4a. There is. Also, on the top surface of the curtain hanging beam 3, an L metal fitting 5 is installed.
A large number of air cylinders 6 are fixed at predetermined intervals through the air cylinders 6, and a presser arm 7 is fixed downwardly to the tip of the piston rod 6a protruding forward. A clip is formed to hold the upper end of the curtain fabric F, and the projecting edge 4a determines the mounting position of the curtain fabric F.

A backing plate 8 similar to the backing plate 4 of the curtain hanging beam 3 is fixed to the center of the front surface of the intermediate beam 2.

Further, as shown in FIG. 2, a pair of L-shaped fittings 9.9 extending downward are respectively fixed to the lower surfaces of both ends, and a lever 10 is swingably mounted between the lower ends of the L-shaped fittings 9.9. A swinging beam 11 (see FIG. 1) in the width direction is fixed between the lower ends of the left and right levers 10.10, and is suspended via the levers 10.10. Then, the upper end of the lever lO is attached to the bracket 1 on the back surface of the intermediate beam 2.
2 to the lower end of a piston rod I4 that protrudes downward of the air cylinder 13 for the table, which is attached to be able to swing back and forth, and the lever 10 is rotated counterclockwise in FIG. 1 by the protrusion of the piston rod I4. The swing beam 11 is then rotated 90 degrees from the downward position in the figure to the forward position (see FIG. 3).

Opening/closing air cylinders 15 are fixed to the front surfaces of both ends of the swinging beam 11 in the downward position, and a presser beam 17 in the width direction is located between the tips of the piston rods 16 of the left and right opening/closing air cylinders 15 (see FIG. 1). is fixed, and a guide rod 18 protruding from the rear surface of both left and right ends of this presser beam 17 is slidably inserted into the end of the rear swinging beam 11, and as the opening/closing air cylinder 15 is operated. The presser beam 17 moves back and forth (see the two-dot chain line in Fig. 1),
This opens and closes the space between the swing beam 11 and the presser beam 17.

A first table 19 is provided in front of the swing beam 11.
However, there is also a second table board 20 on the back of the presser beam 17.
are fixed respectively and these are the curtain clamping table 2.
1, and when the presser beam 17 is closed, the curtain fabric F is sandwiched between the table plates 19 and 20. Note that the table board 19 is made to have a slightly larger vertical width than the table board 20.

A guide beam 22 is provided on the back side of the first table plate 19 in the downward position, and both left and right ends of the guide beam 22 are fixed between the left and right supports 11 of the portal frame.

A contact plate 23 having an inverted cross section is fixed to the lower surface of the guide beam 22, and is in contact with the back surface of the first table plate 19, so that the lower edge of the contact plate 23 and the lower edge of the first table plate 19 are connected to each other. They overlap at almost the same height.

Below the guide beam 22 is a lower beam 23 in the width direction.
is fixedly provided, and a horizontally running cutter 26 is installed on a rail 24.25 fixed to this lower beam 23. This horizontal traveling cutter 26 is connected to the above-mentioned rail 24.25.
A rotary canter 28 is installed on a cart 27 that runs along the road, and its cutting edge is between the lower edge of the first table plate 19 and the upper edge of the backing plate 29 fixed to the front surface of the lower beam 23. It protrudes slightly from the front. In front of the horizontally traveling cutter 26, an upper presser bar 31 in the width direction facing the lower edge of the first table plate 19 and a lower presser bar 32 facing the upper edge of the contact plate 29 are slidable back and forth. It moves forward and backward by being driven by an air cylinder (not shown), and when moving forward (see the two-dot chain line), there is a gap between the lower edge of the first table plate 19 and the front plate 29 of the lower beam 23. The curtain fabric F is held between the two, and in this state, the horizontal traveling cutter 26 travels to cut the curtain fabric F. Note that the above-mentioned upper press bar 31 and lower press bar 32 are connected at their front surfaces by a connecting plate 33.

A traveling sewing machine 40 is installed in front of the lower beam 23. That is, a plate-shaped rail 42 is laid through a sewing machine rail base 41 in the width direction, and a Minn truck 43 that runs by a motor is placed on this plate-shaped rail 42 via wheels 44. A sliding block 46 on the lower surface of the base 46 of the sewing machine holder is slidably fitted into a guide shaft 45 in the front and rear direction fixed to the base 4.
6 is driven by an air cylinder (not shown) to move back and forth. In this sewing machine receiver, a sewing machine main body 48 with a core, a controller 49, and a support bracket 51 for a core tape 50 are respectively fixed on a stand 46, and a reel 52 of the core tape 50 is attached to the support bracket 51. When the sewing machine cart 43 moves forward, the core tape 50 is pulled out from the winding frame 52, and the cloth holder of the sewing machine main body 48 is guided onto the table 48a, overlapped with the curtain F, and sewn with the sewing machine needle 48b. .

In the above structure, the sewing machine truck 43 of the traveling sewing machine 40
is positioned on the side of the pillar 1 of the gate-shaped frame, and the second table plate 20 of the curtain clamping table 21 and the presser bars 31 and 32 below it are respectively moved forward to connect the first table plate 19 and the backing plate 29. The curtain hanging beam 3 is lowered, the presser arm (clip) 7 on the front is opened, and the curtain which has been cut slightly longer than the predetermined length and hemmed is sewn between the holding arm (clip) 7 and the backing plate 3. Ground F
Insert the hem seam Fa (see Figure 4), close the presser arm 7, and attach the curtain fabric F to the curtain hanging beam 3.
Fix it in a state where it is spread out in the width direction. Next, this curtain hanging beam 3 is raised to a desired height, and the lower part of the curtain fabric F is placed between the first table plate 19 and the second table plate 20 of the curtain clamping table 21, and with the bottom plate 29 above and below. and the presser bars 31 and 32 in order. Next, the first table board 19 and the presser bars 31 and 32 are closed, and the lower part of the curtain fabric F is placed on the backing board 19.
and the front surface of 29 (see the two-dot chain line in FIG. 1).

Subsequently, the horizontal traveling cutter 26 is moved from one end to the other end in the width direction, and between the first table plate 19 of the curtain holding table 21 and the lower contact plate 29, in other words, the upper and lower presser bars 31, 32 Then, the piston rod 14 of the table air cylinder 13 is made to project downward, and the curtain holding table 21, which is in the downward position, is turned 90 degrees to the forward position (
(See Figure 3).

At this time, the end of the curtain fabric F is connected to the first table board 19.
By running the traveling sewing machine 40 on the side of the support column 1 in this state, the core tape 50 is attached to the end of the curtain fabric F protruding from the front end of the second table board 20. They are overlapped, and this overlap is sewn along the edges to perform interlining. And the sewing machine body 4
8 is moved back together with the stand 46 in the direction away from the portal frame, and the second table plate 20 of the curtain holding table 21 and the upper and lower presser bars 31 and 32 are opened (
(See the two-dot chain line in FIG. 3), the curtain fabric F can now be taken out.

In the above embodiment, when the curtain material is first interlined and hemmed, hemming can be performed by attaching a three-wrap wrapper guide to the sewing machine main body 40.

(Effects of the Invention) As described above, this invention consists of two plates that are long in the width direction and can be opened and closed between the curtain hanging beam that can be raised and lowered and the horizontally traveling cutter below. A curtain clamping table that can be rotated between a forward position and a forward facing position is provided, a traveling sewing machine is placed in front of this curtain clamping table, and its cloth holder is arranged so that the table moves along the lower surface of the curtain clamping table in the forward facing position. Because of this, after hanging the curtain material and cutting it to the desired length, the curtain clamping table is immediately rotated to the forward position and the traveling sewing machine is run to perform the desired sewing. Compared to this method, the upper and lower seams can be easily formed in parallel straight lines without requiring any skill, and the efficiency is improved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the invention, FIG. 2 is a front view of the end of the support column, and FIG. 3 is a side view of the main parts to explain the operation.
FIG. 4 is a sectional view of the curtain fabric. F: Curtain fabric, 3: Curtain hanging beam, 7: Crimp, 19: First table board, 20: Second table board, 21: Curtain gripper, 26: Horizontal running cutter, 40: Running table, 48: Sewing machine body , 48a: cloth holder is table, 48b = sewing machine needle.

Claims (1)

[Scope of Claims] [1] A vertically movable curtain hanging beam, which is provided with clips on the front side of a beam long in the width direction for holding the curtain fabric in a spread state, and a curtain hanging beam provided below the curtain hanging beam. , and a horizontal traveling cutter for cutting the lower end of the curtain material suspended from this curtain hanging beam in the width direction at a desired height. A curtain clamping table is provided which can pivot between a downward position and a forward facing position using a direction axis as a fulcrum, and a curtain bottom end portion extending in the width direction in front of the curtain clamping table and protruding from the front end of the curtain clamping table is provided. A curtain length determining and sewing device characterized in that a traveling sewing machine for sewing is provided so that its cloth receiving table moves along the lower surface of the curtain holding table in the forward position.