JPH041906Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] Industrial field of application The present invention improves the efficiency of diagonal stitching of side pockets of pants and the cutting operation at the end of the stitching, while maintaining high quality. This invention relates to a stitcher for side pockets of pants designed to save labor.

Conventional technology Conventionally, when sewing the openings of side pockets of pants, the diagonal stitching causes the material to stretch during sewing, which tends to cause problems such as twisting, distortion, and wrinkles, which poses difficulties in workability. , it is very difficult to maintain high quality and requires skilled techniques, so tape is pasted on the necessary points to suppress the elongation of the material, and then folded with an iron and pressed. It requires many processes, and for continuous mass production, workers must be assigned to each process.
This method requires a great deal of labor and has the drawbacks of very low efficiency.

Also, because the pockets are slanted, cutting out the end of the stitching required when joining the sides of the back and front pieces is a bit of work, but it requires precision in the amount of cut, and it takes a lot of nerves. This process requires labor, and the position of the pocket is marked by cutting when cutting.
It has the disadvantage that it becomes an obstacle to bending during surging (edging), and the markings are difficult to discern due to the surging thread.

Problems that the invention aims to solve This invention simplifies the conventional complicated process and saves labor by simultaneously processing the material folding process and stitching required for diagonal stitching of side pockets of pants. In addition to eliminating defects such as twisting, distortion, and wrinkles, this product maintains high quality, and also automates the cutting operation at the end of the stitching, as well as ensuring the accuracy of the cutting amount. The aim is to provide stitchers.

[Structure of the idea]

Means for Solving the Problems In view of the above, the present invention provides a sewing machine head that is disposed on a table mounting portion, and a needle position of the sewing machine head that passes through the center processing direction on the rear side of the center processing direction. A reference line is provided at an interval corresponding to the stitch width between the two, and the front end portion is aligned with the reference line, and
A ruler body that can be attached to and detached from the placing part is arranged in front of the reference line, and a bending plate that overlaps the upper surface of the front edge of the ruler body is arranged in the rear side of the reference line. A keeper needle that can move forward and backward, and can move up and down between the center processing direction and the reference line, and a guide rail that can move forward and backward along the processing direction from the reference line of the mounting section to the needle position. A stitcher for side pockets of pants, which is arranged so that the side edge of the rubber member of the guide rail coincides with the center processing direction so that it can be attached to and detached from the mounting part, and a cutter is arranged in front of the bending plate. This is an attempt to solve the above-mentioned drawbacks by providing the following.

Operation In the present invention, the material to be sewn is placed on the table placement section, the bending position of the material, ie, the side pocket of pants, is aligned with the reference line of the placement section, and the lower part of the cutter is placed. Place the cut-out part of the material at , then lower the cutter to cut out a portion of the material corresponding to the end of the stitch, then align the front edge of the ruler with the reference line, and
The material is held in the placing section by interposing it and coming into contact with the placing section, and in this state, the bending plate is moved forward towards the ruler body and the bending section is placed in front of the bending position of the material. are sandwiched between a ruler and a bending plate, stacked and bent.

Then, while the keeper needle is lowered to pierce the bent part of the material, the ruler body is removed from the bent part of the material and returned to the initial position, and in this state, the guide rail is moved to the upper part of the material, and then Lower the rear guide rail, hold the bent part of the bent material in a pinched state, release the state of being held by the bending plate and key bar needle, change the grip on the guide rail, and then remove the material from the guide rail. The material is sewn along the side edge of the rubber member while holding the entire bent portion of the material.

Embodiment An embodiment of the present invention will be described below based on the drawings. 1 is the main body of a stitcher for sewing diagonal stitches on the side pockets of pants, and the material W for pants or the like is placed on the upper part of the base 2. For this purpose, a table 4 having a mounting portion 3 with one side protruding forward is provided,
Suction holes 5, 5a... connected to a suitable suction device (not shown) are provided on the front side of the mounting portion 3 of the table 4, that is, on the working position side, and the suction holes 5, 5a...
It is configured to suction and support the material W.

Reference numeral 6 denotes a sewing machine head for performing diagonal stitching of the material W pocket, and a needle position 7 of the sewing machine head 6 is disposed on the side of the mounting portion 3 of the table 4.

Reference numeral 8 denotes a bending mechanism for bending the diagonal stitch portion of the material W pocket, and the bending mechanism 8 is located at the rear central part of the placement section 3 and at the table on the start end side (right side) in the processing direction corresponding to the needle position 7. 4, and the stitch width is set at the rear side of the center processing direction Y-Y, which should pass through the center of the needle position 7 among the above-mentioned processing directions, between the center processing direction Y-Y and the center processing direction Y-Y. A reference line X is provided at an interval corresponding to
Consists of 0.

First, the ruler actuating mechanism 9 will be explained. The ruler actuating mechanism 9 has a sliding body 1 attached to guides 12, 12a vertically disposed from a frame 11 above the table 4.
3 is slidably attached to the slide body 13, and a rod 15 of a cylinder 14 hanging from the frame 11 is attached to the slide body 13.
are connected so that they can be raised and lowered freely.

In addition, guides 1 are placed horizontally on both sides of the sliding body 13.
6 and 16a are fixedly installed, and a sliding body 17 is slidably attached to the guides 16 and 16a, and a rod 19 of a horizontally arranged cylinder 18 is connected to the sliding body 17, so that the cylinder 18 moves forward and backward. It is done freely.

Further, arms 20, 20a are attached with the lower front corner of the sliding body 17 as a fulcrum, and the arms 20, 20a
A support body 21 is attached to the lower end of the cylinder 22, and a rod 23 of a horizontally arranged cylinder 22 is connected to the cylinder 22 so as to be able to swing vertically.

Further, the support body 21 is formed from a leaf spring, and the front edge 24 that coincides with the reference line X is formed with notches 25, 25a, . The front edge 24 of the ruler body 26 is aligned with the reference line X, and the ruler body 2
At 6, the material W is controlled to be attached to and detached from the table 4 so as to be fixed thereon.

Next, the holding mechanism 10 will be explained.The holding mechanism 10 has a front edge 27 located behind the placing part 3 of the table 4 so that it coincides with the reference line A guide plate 28 is provided which is connected to a suitable drive device (not shown) to ensure this.

Further, on the upper surface of the guide plate 28, notches 30, 3 are provided at the front edge 29 that coincides with the processing direction at the same intervals as the notches 25, 25a, . . . on the front edge 24 of the ruler body 26.
A rocking body 3 equipped with a bending plate 31 formed with 0a...
A cylinder 33 which can move forward and backward is horizontally arranged on the guide plate 28 at the rear of the rocking body 32, and a rod 34 of the cylinder 33 is provided.
A front edge portion 24 of a ruler body 26 whose tip end is connected to a swinging body 32 and a bending plate 31 of the swinging body 32 is disposed in front.
It is controlled so that it can move forward and backward so that it is layered on the top surface.

In addition, in the figure, 35, 35a are guides, 36, 36a
is a guide rod, and 37, 37a are nozzles that eject compressed air forward.

Reference numeral 38 denotes a clamping member that is part of the configuration of the clamping mechanism 10, and a keeper needle is attached to the sliding body 32 so as to be able to slide vertically via leaf springs 39, 39a so as to move relative to the bending plate 31. The members 40, 40a are arranged, and the tips thereof are hung down at a predetermined interval from the front edges 41, 41a of the keeper needle mounting members 40, 40a, that is, at the same interval as the notches 30, 30a, . . . of the bending plate 31. The keeper needles 42, 42a... are fixed in a comb-teeth shape, and the tips of the keeper needles 42, 42a... are set so as to have a slight distance from the upper surface of the guide plate 28 when not in operation. 30, 30a...

Reference numerals 43, 43a are driving parts for swinging the tips of the keeper needles 42, 42a, etc. downward, and the driving parts 43, 43a are oscillating units located at positions above the bases 44, 44a of the keeper needle mounting members 40, 40a. Press shaft 4 via stays 45, 45a fixed to 32
6, 46a are mounted with the parts protruding downward.

Reference numeral 47 denotes a transfer mechanism for transporting the material W to the processing position 7, and a support 48 is mounted on one side of the frame 11 above the table 4 so as to be movable forward and backward along the processing direction by an appropriate drive device (not shown). A support rod 50, which can be expanded and contracted by a screw mechanism or the like, is provided vertically from one end of the support body 48 via a guide 49, and a support rod 51 is provided vertically at the other end.
1 is equipped with a clamp mechanism 55 consisting of a cylinder 52, a link mechanism 53, and leaf springs 54, 54a.

Further, a guide rail 57 having a non-slip member 56 such as rubber fixed to the lower surface is installed horizontally across between the tip of the support rod 50 and the clamp mechanism 55, and the rubber member side of the member 56 of the guide rail 57 is installed horizontally. The edge portion 62 is controlled to be freely attachable to and detachable from the mounting portion 3 of the table 4 with the edge portion 62 substantially aligned with the center processing direction YY.

Incidentally, in this embodiment, the guide plate 28 may be made to be able to rise and fall freely, but the method is not limited to such a method.
The bent portion 58 of the material W is stacked on the upper surface of the material W.
For example, although not shown, the lower part of the front edge 29 of the bending plate 31 may be formed into a tapered shape, and the bending plate 31 may be bent while being sandwiched between the ruler 26 and the bending plate 31. This is made possible by having the function of moving up and down freely in 31.

In addition, cutter holes 59, 59a are bored in front of both sides of the guide plate 28 so as to reach the reference line 61 are provided.

Although two cutters 60 and 60a are installed, they are suitable for the front bodies of two types of pants, left and right. Next, to explain the outline of the side pockets of pants, in Figures 6 and 7, A is the front part of the pants, B is the back part, C is the side pocket, D is the cloth facing the pocket, and E and F are the bags. A cutout Z is provided at the boundary between the side seam G and the side pocket C.

Next, to explain the operation of the stitcher for side pockets of pants according to the present invention, first, place the material W (the right front body part in the drawing) to be sewn with a predetermined stitcher width on the mounting part 3 of the table 4 with the back side facing up. At the same time, the bent position of the diagonal trouser pocket, which is the material W, is set so that it matches the reference line X of the mounting section 3, and the cutout part Z is located at the lower part of the cutters 60, 60a.

In this state, the material W is maintained in a fixed state on the mounting portion 3 due to the suction action of the suction holes 5, 5a, . . . .

Next, the cutters 60, 60a are lowered to cut the material W.
Cut out a portion corresponding to the end of the stitch sewing to create a cutout portion Z that will be the boundary between the vertical side seam G and the slanted side pocket C when sewing the pants is completed, and then construct the ruler operating mechanism 9. The cylinder 18 is operated to align the front edge 24 of the ruler 26 with the reference line By abutting against each other, the ruler body 26 is held on the mounting portion 3 by the spring action.

In this state, the guide plate 28 is raised by a predetermined amount corresponding to the thickness of the material W, and then the bending plate 31 is moved forward by the operation of the cylinder 33 while sliding on the guide plate 28. Then, the bending portion 58 (the end of the material W from the cut-out portion Z and corresponding to the side pocket C of the pants) in front of the bending position of the material W is bent.

In this process, the bending portion 58 is
By the action of compressed air ejected from the nozzles 37 and 37a attached to the bending plate 31, the bending part 58 is directed toward the bending plate 31 and extends diagonally upward,
By moving the bending plate 31 toward the ruler 26 from below the bending part 58, the bending part 58 of the material W is sandwiched between the ruler 26 and the bending plate 31, and the material W is stacked and folded. It's a song.

In addition, in such a state, the notches 25, 25a of the ruler body 26 and the notches 30, 3 of the bending plate 31
0a... indicates a matched state.

Next, the keeper needle 4 attached to the sliding body 32
By swinging the tips of the keeper needles 42, 42a downward to the placing part 3 by the operation of the drive parts 43, 43a, the bending parts 58 of the material W are pierced with the tips of the keeper needles 42, 42a... Fold and fix.

Then, move the ruler body 26 diagonally upward to the cylinder 22.
The cylinders 14,1
8, it avoids to a suitable position above the placing part 3 and returns to the initial position.

Furthermore, in such a state, the guide rail 57
is moved to a position facing above the material W, and then the guide rail 57 is lowered and the guide rail is moved to the seam line (center processing direction Y-Y) at the bending part 58 of the bent material W on the mounting section 3. The side edges 62 of the rubber members 57 are held in a state of alignment, and the state of being held by the bending plate 31 and the keeper needles 42, 42a is released, and the guide rail 57 is used to change the grip. , then guide rail 5
At step 7, the bent portion 58 of the material W is held and moved to the needle position 7, and sewing is performed along the rubber member side edge 62 of the guide rail 57 (center processing direction Y-Y).

[Effect of idea]

In short, the present invention arranges the sewing machine head 6 on the mounting part 3 of the table 4, and the needle position 7 of the sewing machine head 6.
A reference line At the same time, a ruler body 26 that can be attached to and detached from the placement part 3 is disposed in front of the reference line Since it is arranged on the rear side of X so that it can move forward and backward, the bending plate 31 is held while the ruler body 26 holds the entire bending position of the diagonal stitch of the material W.
As a result, the bending portion 58 of the material W can be stacked and folded while being sandwiched between the ruler 26 and the bending plate 31, so that it is possible to eliminate the elongation phenomenon of the material W that occurs particularly when folding diagonally. At the same time, the bending plate 31 is moved above the ruler body 26 so as to be layered, so that even if it is a soft material W, even a hard material W such as jeans can be reliably bent. I can do it.

In addition, keeper needles 42, 42a, etc., which can be raised and lowered freely, are arranged between the center processing direction Y-Y and the reference line X, and the keeper needles 42, 42a, etc. The guide rail 57 is arranged to move forward and backward, and the rubber member side edge 62 of the guide rail 57 is aligned with the center processing direction Y-Y so that the guide rail 57 can be attached to and detached from the placement section 3, so that the keeper needles 42, 42a ... is lowered to pierce and hold the bent part 58 of the material W, so even if the ruler body 26 is removed from the bent part 58 of the material W, the bent state can be maintained reliably, and By holding the material W in a clamped state over the entire area in the center processing direction Y-Y at the bending portion 58 of the material W by the guide rail 57, the material W is sewn in a pinched state, thereby eliminating distortions, twists, and wrinkles that occur during diagonal stitching. A perfect seam line can be obtained by eliminating such defects, and even beginners can maintain high quality without requiring any skill.

Therefore, by simply aligning the bending position of the material W with the reference line X, the bending process to the stitching process can be performed continuously, compared to the conventional method of performing each process separately. In addition to dramatically improving work efficiency and achieving high efficiency, by omitting the taping and ironing processes, it is possible to simplify complicated processes and save labor. .

In addition, cutters 60, 60a are provided in front of the bending plate 31.
Because of this arrangement, it is possible to perform cutting with an accurate depth of cut, and to save labor.Also, once the setting position of the material W is set, cutting, folding, and stitching can be performed automatically. , constant pocket dimensions and accurate seam allowance dimension management, no marking required, and guide plate 2
Cutters 60, 60a on the front edge of 8 (reference line X)
Because of this position, the practical effects of this, such as being able to maintain the accurate position of the cut for bending even when changing the stitch width, are great.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a front view of the stitcher for side pockets of pants according to the present invention, Figure 2 is a perspective view of the main part of the same stitcher with the guide rail raised, Figure 3 is a side view of Figure 2, and Figure 4 is Figure 3 shows the operating state, Figure 5 is an enlarged perspective view of the cutter section, Figure 6 is a plan view of the back of the right front body after stitching, Figure 7
The figure is a side view of the upper part of pants with diagonal pockets formed on the sides of the pants. 3... Placement section, 4... Table, 6... Sewing machine head, 7... Needle position, 24... Front edge, 26...
Ruler body, 31...Bending plate, 42, 42a...Keeper needle, 57...Guide rail, 60, 60a...
...Cutter, 62...Rubber member side edge.

Claims (1)

[Scope of utility model registration request] A sewing machine head is disposed on the mounting part of the table, and a reference line is drawn at a distance corresponding to the stitch width from the rear side of the center processing direction passing through the needle position of the sewing machine head to the center processing direction. A ruler is provided on the front side of the reference line, the front edge of which is aligned with the reference line, and a ruler body that can be attached to and detached from the placement part is provided on the front side of the reference line. A bending plate is placed on the rear side of the reference line so that it can move forward and backward, and a keeper needle that can be moved up and down is placed between the center processing direction and the reference line. A guide rail is provided so as to be movable forward and backward along the processing direction to the needle position, and the rubber member side edge of the guide rail is aligned with the center processing direction so that the guide rail can be attached to and detached from the placing section. A stitcher for side pockets of pants, characterized by a cutter placed in front of the curved plate.