JPS6272394A - Automatic stitching machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is directed to a "1" method that can automatically wrap and equip an annular rubber body around the edge of the fabric that is the torso of pants, skirts, etc., and then sew it. Regarding dynamic MW machines.

(Prior art) Generally, when sewing an annular rubber band to the waist of pants or a skirt, a wide annular rubber band a as shown in Fig. 14 or a plurality of bands in parallel as shown in Fig. 15 are used. The elastic strings were placed on the edge of the fabric, which was the waist circumference, as shown in FIGS. 16(A) and 16(B).

As shown in FIGS. 17(A) and (B), the 41 end edge is
16 (A), 17 (A)), or 16 (B), 17 (Fig. 17). B
), the rubber body is rolled back onto the inner surface and then sutured.

(Problems to be Solved by the Invention) However, such wrapping work and the work that moves on to sewing have traditionally been done by hand, which is not only time-consuming but also requires skill to master. There is.

The present invention has been made focusing on the above circumstances,
The purpose is to provide an automatic sewing machine that can automate a series of steps from winding work to sewing work.

(Means for Solving the Problems) In order to achieve the above object, the device of the present invention for automatically winding up a rubber body around the edge of a cloth appropriately wraps the annular cloth and the annular rubber body positioned on the inner periphery of the cloth. At the same time as holding it in tension,
a traveling mechanism that causes the annular fabric to travel in the circumferential direction with its end edge hanging down; and a rubber receiver that faces from one side of the held rubber body and is disposed on the inner surface of the rubber body. a rubber guide mechanism located on the other side of the held rubber body and capable of moving forward and backward with respect to the rubber receiving body, the end edge of the hanging annular cloth being in the forward position; A cloth receiving mechanism is placed below the rubber receiving body and wraps the end edge of the annular cloth into the rubber body, and a cloth receiving mechanism is located in front of the cloth receiving mechanism and can move forward and backward relative to the drooping edge of the circular cloth. and a rubber body automatic winding device, which is equipped with a winding mechanism having a plurality of guide claws that guide the end edge of the hanging annular cloth inward to gradually fold it in the forward position. This is a sewing machine that is equipped with a knife mechanism that can be moved to a position where it can be sewn.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 in the figure is a base. Reference numeral 2 denotes a mounting table provided on the base 1 via a rail 3, and 4 is a double chainstitch sewing machine main body having multiple needles mounted and fixed on the mounting table 21. An operating rod 5a of a cylinder 5 fixed to the base 1 is connected to the mounting base 2, and by pushing and retracting the operating rod 2a, the sewing machine main body 4 is moved to both ends of the base l. is the stopping position, and it is possible to move back and forth between these positions. Further, a drive motor 6 for the sewing machine main body 4 is placed and fixed on the storage stand 2f, so that the sewing machine main body 4 can be operated regardless of movement of the storage stand 2.

Stations 7 are provided on the base l via rails 8 protruding forward from the bottom surface of the base 1, corresponding to each stop position of the sewing machine main body 4, and each station 7.7
are connected to actuating rods of cylinders 8, 8 fixed to the lower surface of the base l, respectively, so that they can move forward and backward relative to the sewing machine main body 4. And each station 7
．． Rubber body automatic winding devices to and io are placed and fixed on the rubber body 7.

This rubber body automatic retracting device 10.10 is configured to move the sewing cylinder 11 in the vertical plane including the needle drop portion 12 of the sewing machine main body 4, that is, in FIG. A traveling mechanism 15 has locking rollers 12, 13, and 14 arranged in front, rear, and downward positions corresponding to each other as shown in FIG. , a rubber guide mechanism 1B provided so as to be movable forward and backward with respect to the line, a cloth receiving mechanism 17 facing the rubber guide mechanism 1B and movable forward and backward with respect to this guide mechanism 18, and this cloth receiving mechanism. 17
The locking roller 12 is placed closer to the front locking roller 13,
The winding mechanism 18 is provided so as to be movable forward and backward along a line connecting the surroundings of the winding mechanism 13.

Here, the traveling mechanism 15 and the rubber guide mechanism 16 are arranged on the station 7, and the cloth receiving mechanism 17 and the winding mechanism 18 are arranged on the movable base 37 connected to the station 7 via the slide rod 38. The operating rod 38a side of the air cylinder 39 fixed to the station 7 is connected to the movable base 37, so that the movable base 37 can move forward and backward with respect to the station 7.

As shown in FIG.
is connected to the rotating shaft 21 of the station 7 via a connecting member 22.23, and this rotating shaft 21 rotates with the movable load 24a of the air cylinder 24 fixed to the station 7 via the link 22. The rollers 12.14 are movably connected, and as the operating rod 24a moves, the rollers 12.14 physically move around the rotation shaft 21, and the three rollers 12, 13.14 The loop circumference length of the loop is changed. Further, in the traveling mechanism 15, a motor 25 is rotated to a position where the rear hanging roller 12 is moved with the operating rod 24a of the cylinder 24 being moved.
A rotary roller 26 with seven functions is arranged so as to be able to roll into contact with the hook 11 and the roller 12.

As shown in FIGS. 3 and 5, the rubber guide mechanism 16 has a rubber pedestal 28 extending from one end to a holding pedestal 27 erected from the station 7 via an S-shaped bending portion 28a. A rubber guide 29 is slidably provided. As shown in FIGS. 6(A) and 6(B), the structure in which the goto guide 29 is made slidable with respect to the holding table 27 is such that the support shaft 31 is attached to one holder 30 placed on the holding table 27-H. Connect the rubber guide 29 through the holder 30, connect the inverted X'IL-shaped link +00, and connect the dove end of this link +00 to the slide pin 32 attached to the holding base 27 as shown in the figure. The end of this slide pin 32 and the operating rod 34 of the air cylinder 33 are inserted in the open state.
and are quickly connected by a connecting link 35. In addition, the inverted L-shaped link +00 and one holder 30 are the link 1
A pin shaft 3 is rotatably connected to the corner part of 00 via a support shaft +01, and a long hole 35 is provided at the tip end of the corner, and a pin shaft 3 is provided in this long hole 35 protruding from the side of the holder.
6 enters, the link 100 tilts as the actuating rod 34 moves forward, and moves the rubber guide 29 in the L direction.

As shown in FIG. 7(A), the cloth receiving mechanism 17 includes a cloth receiving holder 62 consisting of cloth guides 40 and 41 curved inwardly into a U-shaped cross section, and a 4j guide 40 with a negative side force.
The 4j guide 40 on the other side is connected to the operating rod 43 of the air cylinder 43 attached to the movable base 37, and the 4j guide 40 on the other side is connected via a support shaft 42.
a and the cloth guide 4 on the other side connected via the link 44.
1, it is rotatable about a support shaft 42 as shown in FIG. 7(B).

The winding mechanism 18 has three guide claws 45, 48, and 47, as shown in FIG. The holder 4B is rotatably attached to the tip of the projecting body via a support shaft 49, and the remaining two guide claws 48 and 47 are attached to the base end of the projecting body of the holder base 48 via a support shaft 50. It is rotatably mounted, and each support shaft 49.50 is connected to the operating rod 51a of the air cylinder 51.52 fixed to the holder base 48,
52a through links 53 and 54, and
As shown in b), each guide pawl 45, 48, 47 is rotatable. In addition, each guide claw 45, 48.47
are arranged sequentially with angular differences, and the degree of curvature of the tip becomes smaller as it goes toward the cloth receiving mechanism 17 side.

Note that the female mechanism 60 built into the sewing machine body 4 cuts the sewn thread and bobbin thread at the same time during sewing, and has already been disclosed in Utility Model Application No. 59-3755. Therefore, the details will be omitted.

Next, the operation of the automatic sewing machine having such a configuration will be explained.

First, as shown in FIG. 9, hang the annular rubber body 70 across the hanging rollers 12, 13, 14 of the rubber body automatic winding device W110 and the rubber holder 28 of the rubber guide mechanism 16! I
Then, the end of the annular cloth 71, which is the waist circumference of pants, etc., is hung so as to surround the annular rubber body 70.
At this time, the end edge 71a of the annular cloth is wrapped around the annular rollers 12, 13, with a predetermined width necessary for wrapping the body.
Hook it so that it is heavier than 14.

If the rubber body automatic winding device W110 is turned on in this state, the rotating roller 2B of the traveling mechanism 15 starts rotating, and at the same time, the cylinder 24 of the traveling mechanism 15 is activated I2.
As the annular cloth 71 becomes taut, the rear hook 11-roller 12 rolls into contact with the rotating roller 26, and the annular rubber body 70 and the annular cloth 71 begin to rotate physically.

By the way, just before the annular goto body 70 and the annular 4171 start turning, the cloth receiving mechanism 17 and the winding mechanism 18 are at tQ.
2 is placed facing the bent edge 71a of the state 71 and spaced apart from it, and in this state, the 41 receiving mechanism 17
- The force cloth guide 40 is in the dynamic state 1S+.

+ L, when the annular goto body 70 and the annular 4J71 turn, the cloth receiving mechanism 17 and the winding mechanism 1 are rotated as shown in FIG.
8 is circular/edge of +171? Along with this movement, the cloth holder holder 62 is placed on the side of the rubber holder 28 of the rubber holder 28 of the guide mechanism 16, and one of the cloth guides 40 is moved l- (11th
), the winding mechanism 18 also has guide claws 45, 48, 47
from the release force, the end edge 71a of the annular cloth 71 is wrapped around the annular body 70 (Fig. 12),
41 through the receiving holder 62 1. By the way, the wrapping state in which the rubber wrapped portion 73 is formed while maintaining a reliable rolling state is created by the winding mechanism 18, and can also be done by this mechanism alone, that is, without the cloth receiving holder 62. This is guide claw 45, 4B, 4? is arranged along the running force direction of the ring-shaped 4J71, so that the 4j chain end edge 7]a can overcome the tension that tries to return to the original hanging state, and the 4j chain is always placed in the winding direction. 】Edge? 1
Guide a 1. This is because it is.

Therefore, this winding is carried out by installing a rotating roller 26') J'++
'After rotating for y, stop + t to bond r.

In addition, the movement of mounting eight annular rubber bodies 70 on the annular cloth 71 [the order is not limited to 1-1-description, but is as follows: annular rubber J1 rest 70 and annular /I.

71 is hooked to the traveling mechanism 15, annular 4171
The sagging edges? la to the holder 62 of the cloth receiving mechanism 17 and the guide claws 45, 4B, 4 of the winding mechanism 18.
? If the annular rubber body 70 and the annular member 4171 are rotated in this state, the annular rubber member 70 and the annular member 4171 are rotated in the same manner as described in 1-1 above.
1 can be wrapped around the annular goto body 70.

When this rotating roller 26 stops, the sewing machine body 4 /
The Ij presser 63 and the forced feed roller 64 are 1. The machine moves to the sewing acceptance state.

Then, the station 7 moves to the side of the sewing machine main body 4, guides and stops the rubber-wrapped portion 73 to the sewing machine needle drop as shown in FIG. 13, and at this point, the presser foot 63 and the forced feed roller 64 are driven. At the same time, the sewing machine main body 4 is driven in accordance with this downward movement, and the rubber-wrapped portion 73 is sewn. Then, when the 311-wrap portion 73 is sewn with the set length remaining, a microswitch (not shown) provided at a predetermined position of the traveling mechanism 15 detects the sewn portion, and by this detection, Remove the obstructive rubber holder 28 made of N, and also remove the cloth guide 40 of the body holder 62.
The guide claws 45, 46, and 47 of the winding mechanism 18 are moved downward to separate them from the unsewn portion. Note that when the cloth guide 40 moves F, if the rubber holder 28 is left in the same state, the curved portion 28 of the rubber holder 28
At this time, tilt the rubber pedestal 28 to make contact with 4.
This is done so as not to cause any hindrance to the removal of the first guide 40.

When the microswitch detects the detection, the set Tsujisen counter operates, and when the counter number of sewing is completed, the tension on the loop circumference of the running 91 mechanism 15 is released, and the sewing machine body 4 side is also At the same time, the drive is stopped and the menu mechanism 601' is activated. The thread and the do thread are cut at the same time. After this cutting, the presser foot 63 and forced feed roller 64 of the sewing machine main body 4 move by 1, and the station 7 separates from the sewing machine main body 4 and returns to its original position.

At this time of return, the rubber pedestal 28 returns to its original state, and the movable base 26 also returns to its original position. [It's back and a new next hook? F! It is time to prepare.

By the way, while the workpiece 70.71 of the force station 71 is being sewn, the workpiece 70.71 wrapped in rubber is placed at the other station 7. When the sewing of the workpiece 70°71 is completed, the sewing machine main body 4 moves to the base lI.

and stop at this other station 7 position,
The workpieces 70 and 71 of this station 71 are sewn in the same manner as described above, and while this station 7 is engaged in sewing, the rubber-wrapped workpiece is transferred to the first station 7 at a certain time. When the sewing machine is set, the sewing machine main body 4 is moved to the station 7.7 of the phase tI- to sew the sewing machine in the alternating direction.

With this configuration, the annular rubber body 70 can be automatically wrapped around the end edge 71a of the annular cloth 71, and the rubber-wrapped portion 73 in this wrapped state can be inserted into the needle drop of the sewing machine body. Automatic sewing is possible from guidance through sewing to completion of sewing when the sewing thread is cut by the female mechanism 60 of the sewing machine main body 4. Further, since the configuration is such that two rubber body automatic winding devices 10 are provided for each of the 41 sewing machine bodies, one sewing machine can be operated effectively.

Incidentally, the number of rubber body automatic winding devices IO can be increased in number to the sewing machine main body 4 to increase the operating rate of the sewing machine.

Furthermore, in the above embodiment, the device of the present invention is installed at the station 7F, which is provided on the base l supporting the sewing machine main body 4 via the rail 8, but the present invention is not limited to this. It may be arranged on a station provided through the sewing machine, or it may be arranged within a plane including the needle drop of the sewing machine main body.

Furthermore, in the embodiment described in 1-1, the annular rubber body 70 was explained as the body to be rolled up, but a group of rubber bodies arranged in parallel may also be used as the body to be rolled in. In this case, each rubber body is attached to each roller of the traveling mechanism. It may also be possible to form grooves for positioning to prevent rotational misalignment.

Furthermore, the present invention is not limited to the rubber-wrapped state of the above-described embodiment, but may also be such that the cloth end edge 71a is wound back inside the annular rubber body 70, as shown in FIG. 16(B). In this case, the guide claws 45° 48.47 of the winding mechanism 18 are arranged so as to wind inside the annular rubber body 70, and
One cloth guide 40 of the cloth receiving mechanism 17 may be positioned under the annular rubber body to hold the wound portion.

(Effects of the Invention) As described above, the automatic sewing machine of the present invention is capable of hooking a circular rubber body and a circular cloth to a rubber body automatic winding device, and also attaching a sewn product to a rubber body after sewing has been completed. If only the work of removing it from the automatic winding device is done, the remaining labor-intensive work steps, such as the work of wrapping the ring-shaped rubber body around the edge of the ring-shaped cloth, and the work of sewing the rolled-up part of the wrapped cloth, can be eliminated. The sewing thread cutting process and sewing thread cutting process at the end of sewing can all be automated based on a series of steps. This eliminates the trouble of having to wrap the rubber in the pre-sewing stage, which was a problem when this type of sewing was done manually, as well as the trouble of manually feeding the rubber-wrapped part during sewing. Moreover, the difficulty of these operations, which require skill or require constant attention and nervousness, can be eliminated at once, and the workability of this type of sewing can be improved. Furthermore, the present invention automates a series of work processes that were conventionally manual and time-consuming, thereby improving work efficiency and improving the operating rate of the sewing machine, that is, productivity.

[Brief explanation of drawings]

1 to 13 show one embodiment of the present invention.
The figure is a schematic front view, Fig. 2 is a schematic side view, Fig. 3 is a perspective view, Fig. 4 is a front view showing the traveling mechanism, Fig. 5 is a schematic side view, Fig. 6 (A) (B) is a side view of the rubber guide mechanism,
Figures 7 (A) and (B) are side views of the cloth receiving mechanism, and Figure 8 (A).
) (B) is a side view of the winding mechanism, Figures 9 and 1.
Figure O is a perspective view, Figures 11 and 12 are side views partially shown in section, Figure 13 is a perspective view, Figures 14 and 15.
The figures are perspective views showing annular rubber bodies, and Fig. 16 (A
) (B) and FIGS. 17(A) and 17(B) are cross-sectional views showing the rolled-up structure. 4... Sewing machine main body 15... Traveling mechanism 16... Rubber guide mechanism 17... Cloth receiving mechanism 18... Winding mechanism 28... Rubber receiver 45.46.47... Guide claw 70 ...Annular rubber body 71...Annular cloth? 1a... Drooping edge of circular cloth Patent applicant: Morimoto Seisakusho Co., Ltd. Representative: Patent attorney Takashi Suzuta - 6th! i 711 (A) (B) 13!1 Figure 16 Figure 17 (A) (A) Figure 14 Figure 15

Claims (1)

[Claims] The annular cloth and the annular rubber body located on the inner circumference thereof are held under appropriate tension, and the edge of the annular cloth is allowed to hang down in the circumferential direction of the annular cloth. a traveling mechanism for causing the held rubber body to travel; a rubber guide mechanism having a rubber receiving body facing from one side of the held rubber body and disposed on the inner surface side of the rubber body; The end edge of the hanging annular cloth is placed below the rubber receiver in the advanced position, and the tip of the end edge of the annular cloth is moved forward and backward with respect to the rubber receiver. A cloth receiving mechanism that wraps around the body side, and a cloth receiving mechanism that is positioned in front of the cloth receiving mechanism and can move forward and backward with respect to the hanging edge of the circular cloth, and in the forward position, the cloth receiving mechanism that wraps the hanging cloth inward. A sewing machine equipped with a scalpel mechanism for cutting sewing thread is provided with a rubber body automatic winding mechanism having a plurality of guide claws for guiding the sewing thread so as to gradually fold the sewing thread so as to be movable to a position where sewing can be performed. An automatic sewing machine characterized by: