JPH0335426B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an automatic stitching device, and more specifically, it is equipped with an automatic frame capable of stitching a long and thin fabric tape. Related to automatic stabbing device.

[Prior Art] As a sewing device for sewing objects to be sewn, there is a conventional sewing device described in, for example, Japanese Utility Model Application Publication No. 165173/1983.

This conventional technology uses a bottom press plate with a slit shaped according to the sewing location of the workpiece, and a hole (notch) larger than the needle hole in the part corresponding to the needle hole position.
and a sewing plate having one or more sewing workpiece attachment frames capable of sandwiching and holding a piece of cloth between the upper presser plates having thread relief grooves formed between the holes, and this sewing plate. It has a control and drive mechanism for moving the plate in the X and Y directions, and a sewing machine head attached to a head stand corresponding to the number of sewing product attachment frames, and sews a wide fabric by sandwiching it between the upper and lower pressing plates. It is.

[Problems to be Solved by the Invention] However, in the above-mentioned prior art, a piece of cloth with a limited area is sewn onto a piece of cloth with a limited area, and therefore an automatic frame ( As mentioned above, the fabric attached to the sewing material attachment frame has a limited area, and when another fabric is sewn onto this fabric, the finished fabric is removed from the automatic frame and a new fabric is attached. However, it is not suitable for continuous or intermittent stitching on long pieces of narrow fabric like tape.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide an automatic embroidery device suitable for continuously or intermittently embroidering a long fabric tape.

[Means for Solving the Problems] The above-mentioned object of the present invention is to provide a frame having a frame driving function, an automatic frame which is placed on the frame and moves vertically and horizontally by the function, and a fabric fed into the automatic frame. a pair of clamping rods that respectively clamp the feeding part and the feeding part of the fabric tape between the pair of clamping parts formed near both ends of the automatic frame that intersect with the tape; and the automatic frame. a rigid flat plate material provided with a slit having a width corresponding to the width of the fabric tape to be attached to the fabric tape; This is achieved by providing a pair of guide sleeves with wide guide holes on the insertion side of the fabric tape.

[Function] The automatic frame of the automatic stitching device of the present invention raises the clamping rod and passes the fabric tape over one clamping part and into the guide hole of the guide sleeve. The fabric tape is drawn through the guide hole of the upper guide sleeve so as to cross over the clamping part, and the feed part and the feed part of the fabric tape are stretched outside the guide sleeve so that the fabric tape is attached to the inside of the slit of the flat plate material. After clamping the fabric tape to the clamping part with a clamping rod,
Stitching is performed on the fabric tape.

When stitching, the movement of the fabric tape in the length direction is regulated by the clamping part, and the movement of the fabric tape in the width direction is restricted by the slit edge of the flat plate material, making it possible to stab the fabric tape comfortably. It can be performed on a sewing machine head.

When the stitching is finished, remove the clamping rod from the clamping part, move the fabric tape in the length direction along the slit of the guide sleeve, align the unstitched part of the fabric tape with the sewing machine head, and then remove the clamping rod from the clamping part. It is possible to repeatedly stab the fabric tape by pressing a clamping rod against the tape and positioning both ends of the fabric tape.

[Example] Examples will be described with reference to the drawings.

The automatic stitching device of this invention is shown in FIGS. 1 to 3.
As shown in the figure, when attaching a fabric tape to an automatic rod 1, a clamping rod 2, a guide sleeve 3, a presser piece 4, and a flat plate material 5 are used to prevent the fabric tape from loosening in the width direction. It is something.

The automatic frame 1 is formed into a rectangular shape by four frame members 11 to 14, and the frame members 11 and 12 are provided with clamping portions 15 and 16 formed as convex portions having semicircular cross sections.

The clamping rod 2 is provided with a clamping part 24 formed by a recess 23 having a semicircular cross section on the lower surface 22 of a pair of rod bodies 21 provided so as to form a pair with the frame members 11 and 12.

This clamping rod 2 is configured so that it can be vertically moved up and down by a hand such as a robot (not shown).

As shown in FIG. 5, the guide sleeve 3 has a guide hole 32 slightly larger than the width and thickness of the fabric tape in the block body 31 so that the side where the fabric tape is inserted expands slightly in the width and height directions to facilitate insertion of the fabric tape. It is composed of

Presser piece 4 is slightly wider than the width of the fabric tape and is the first
As shown in the figure, the lock body 41 has a length that is half the distance between the guide sleeve 3 attached to the frame members 11, 12 and the clamping parts 15, 16, and the clamping parts 15, 1
A sloped surface 42 is formed on the lower side facing 6, and like the clamping rod 2, it can be vertically moved up and down by a hand such as a robot.

The flat plate material 5 is slightly thicker than the fabric tape and has rigidity, and has the same rectangular shape as the automatic frame 1 that can be placed on the shelf portion 17 formed inside each of the frame materials 11 to 14. The pair of guide sleeves 3 attached to the guide sleeves 12 have wide parts near both exposed ends, and the width is slightly larger than the width of the fabric tape a between about half the distance between the guide sleeves 3 and the clamping parts 15 and 16. Plate member 51 with wide slit 52 opened
The slit 52 is formed with a cutter such as a knife according to the width of the fabric tape a.

In Fig. 1, reference numeral 6 denotes a frame, and on the legs 61 there is a table 62 on which the automatic frame 1 equipped with the above-mentioned fabric tape clamping mechanism slides, and at the end of the table there is a tape wound around the fabric tape in the form of a drum. Guide rolls 63, 64 and take-up rolls 6 that guide the fabric tape a from the supply box 66 into which the fabric tape a is placed.
A guide roll 65 is provided to guide the feeder 7. The central portion of the table 62 is open, and a drive mechanism for moving the bobbin thread device and the automatic frame 1 in the vertical and horizontal directions is disposed below the square-shaped table 62. (However, illustrations are omitted in the embodiment) The automatic stitching device of the present invention is shown in FIGS. 7 to 9.
As shown in the figure, a sewing machine head 7 and a control box 8 of well-known construction are attached.

The automatic embroidery device of the present invention is constructed as described above, and the operation of clamping the fabric tape a to the automatic frame and performing embroidery, which is the main part of the invention, will be explained below.

First, the fabric tape a to be embroidered is wound into a drum shape and placed in the supply box 66, and the feeding end is passed between and over the guide rolls 63 and 64 so that it is pasted from the end of the table 62 as shown in FIG. 6a. As shown, while the clamping rod 2 and the presser piece 4 are both held upward by the hand of the robot (not shown), cross over the feeding end of the fabric tape a over the clamping part 23 so as to intersect with this. As shown in FIG. 6b, the guide hole 3 of one guide sleeve 3 is
2 from one side and pull it out from the other.

After this, the clamping part 2 is inserted along the slit 52 of the flat plate material 5 so that the fabric tape a is inserted into this slit.
4, insert it into the guide hole 32 of the guide sleeve 3 on the front side of the guide sleeve 3 from one side, and pull the hook part 16 formed on the drawer frame material 12 to the other side until it slightly overlaps the outside, as shown in Fig. 6c. First, presser piece 4
Then, the feed side and the feed side of the fabric tape a are pressed and temporarily clamped into the slit 52 of the flat plate material 5, making sure that there is no slack in the tape.

After that, as shown in FIG. 6d, the clamping rod 2 descends and clamps the fabric tape a between the clamping parts 15 and 16 of the automatic frame 1 and the frame members 11 and 12 and a part of the flat plate material 5. do.

By clamping with this clamping rod 2, the fabric tape a is clamped to the flat plate material 5 at an angle between the clamping points 15 and 16 between the presser piece 4 and the frame materials 11 and 12, and the clamping parts 15 and 16. Since the parts 15 and 16 are pressed by the clamping rod 2, tension is applied to the slit 5.
3 with appropriate tension.

A plurality of fabric tapes a to be embroidered are attached to the automatic frame 1 in correspondence with the number of sewing machine heads 7, as shown in Figs. will be applied.

That is, as shown in FIG. 9, the fabric tape a is held in its length direction and is located within the slit 52 of the flat plate material 5, so that the fabric tape a may deform or move in its width direction during stitching. This is prevented by the widthwise side surface of the tape coming into contact with the inner surface 53 of the slit 52, and the stitch b is applied to the fabric tape a without bending, as shown in FIGS. 10a and 10b.

When the needle has been stabbed for a length approximately corresponding to the length of the slit 52, the automatic stabbing device automatically stops.

After this, as shown in FIG. 6b, the clamping rod 2 is raised, the presser piece 4 is lowered, and the take-up roll 67 is rotated to move the tape-like member a by the length between the guide sleeves 3. Wind it up.

When the winding of the tape-like member a is completed, FIG. 6c,
As shown in d, the fabric tape a is again clamped to the automatic frame 1 in the same manner as described above, and the same stitches following the previous stitches b are applied.

By repeating this operation from one end of the tape-like member a to the other end, stitching b that continues over the entire length of the fabric tape a is completed.

During this stabbing operation, if the interval between the two clamping points is lengthened, the fabric tape a will shift laterally in an arc between the two clamping points, but since it is within the slit 12, there is no horizontal shift and there is no slack. Therefore, the embroidery area is placed in the correct position along the entire length of the fabric tape a, and the embroidery pattern does not lose its shape.

[Effects of the Invention] Since the present invention is configured as described above, it produces the effects described below.

In the automatic embroidery device of claim 1, the fabric tape can be easily attached to and removed from the automatic frame, and a long tape can be continuously embroidered, so that the embroidered fabric tape can be provided at a low cost. It has the effect of obtaining.

In the automatic embroidery device of claim 2, the presser piece 4 presses the fabric tape a through the slit 52 of the flat material 5.
Since the embroidered fabric tape a can be pulled out while being pressed so that it does not come off, the embroidered fabric tape a will not come off while being pulled out from the slit in the flat plate material, and the embroidered fabric tape a will not come off continuously or intermittently. Nasashiyuu can be easily applied.

[Brief explanation of drawings]

Each of the figures shows one embodiment of the present invention, and FIG. 1 is a side view showing a partially cut away main part of a configuration for continuously supplying fabric tape to an automatic frame of a pedestal;
Fig. 2 is a plan view of the automatic frame excluding the central part, Fig. 3 is a plan view of the main parts of the automatic frame, and Fig. 4 is A-A in Fig. 3.
A cross-sectional view at line A, FIG. 5 is a perspective view with a part of the guide sleeve removed, FIGS. 6 a to d are explanatory diagrams showing the procedure for attaching the fabric tape to the automatic frame, and FIGS. 7 and 8. 9 is a perspective view showing the structure of the embroidery device, FIG. 9 is a perspective view showing the relationship between the sewing machine head and the fabric tape attached to the automatic frame, and FIG. 10 is a diagram showing an example of embroidery performed on the fabric tape. . 1... automatic frame, 2... clamping rod, 3... guide sleeve, 4... presser piece, 5... flat plate material, 11,1
2...Frame material, 15, 16...Holding portion, 32...Guide hole, 52...Slit, a...Fabric tape.

Claims (1)

[Scope of Claims] 1. In an automatic embroidery device in which an automatic frame on a pedestal is moved according to preprogrammed information and a sewing machine head embroiders a fabric attached to the automatic frame, the pedestal is moved by an automatic frame drive mechanism. an automatic frame 1 that moves vertically and horizontally on the automatic frame 1; a pair of clamping parts 15 and 16 formed near both ends of the automatic frame 1 intersecting the fabric tape a fed into the automatic frame 1;
These clamping parts 15 and 16 respectively clamp the feeding side and the feeding side of the fabric tape a, and a pair of clamping rods 2 and 2 each having a width corresponding to the width of the fabric tape to be attached to the automatic frame 1. A rigid flat plate material 5 provided with a slit 52, the clamping portion 15,
The flat plate material 5 is placed on the frame materials 11 and 12 on which the
An automatic embroidery device comprising a pair of guide sleeves 3, 3 each having a guide hole 32 which is attached so as to be exposed from both ends of a slit 52 formed in the slit 52 and into which the fabric tape a is inserted and guided. 2. Pressing pieces 4 are disposed between the clamping part 15 and the guide sleeve 3, and between the clamping part 16 and the guide sleeve 3, and press the fabric tape a against the frame members 11 and 12 through the slit 52. The automatic embroidery device according to claim 1, comprising: an automatic embroidery device;