JPH0696060B2 - Overlocking device at the wrist opening of knitted gloves - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically removing a glove after knitting after knitting an overlock sewing machine on the wrist opening of a knitted glove and then removing the processed glove.

[0002]

2. Description of the Related Art Conventionally, knitted gloves are sewn at the mouth of the wrist to prevent fraying. The work involved manually fitting the wrist opening of the glove into the cantilevered tubular seam of the overlock sewing machine, moving the sewing machine to perform overedging, and then removing the glove from the tubular seam and further The empty sewing thread formed between the sewn portion and the glove has been removed by cutting with scissors or a cutter.

[0003]

It takes a lot of time and labor to manually remove the glove from the tubular seam and to cut and remove the empty sewing thread formed between the tubular seam and the glove with scissors. According to the present invention, by manually fitting the wrist mouth of a glove into the stopped tubular seam and stepping on the foot switch, the glove with the overed edge is stored in the product storage device without requiring manual labor. It was designed to be sent to.

[0004]

A first aspect of the present invention is directed to an overlock sewing machine 20 having a tubular seam portion 21 into which a wrist mouth portion 91 of a knitted gloves 90 is fitted, and an arm member which reciprocally rotates about a vertical shaft 51. 52, an upper lever 60 that is attached to the tip of the arm member 52 and that opens from a horizontal position to an upward position and a lower lever 61 that opens to a downward position, and the up / down levers 60 and 61 in the closed state are the tubular sewing portion 21. Of the glove gripping device 50 that moves from the tip position of the glove to a position away from the end position of the glove, and the suction device 30 that has the negative pressure cylinder 36 that is close to the cylinder sewing portion 21 at the lowered position and that sucks the empty sewing thread 25, and the negative pressure cylinder 36. An edge stitching device for a wrist mouth portion of a knitted glove, which comprises an empty sewing thread cutting device having a blade 72 that moves forward and backward in the opening.

In addition to the structure of the first invention, the second invention is provided with a glove detaching device 80 for pushing in a direction in which the wrist mouth portion 91 of the glove fitted in the tubular sewing portion 21 is removed. .

[0006]

If the wrist mouth 91 of the glove 90 is fitted into the tubular sewing portion 21 by hand and the sewing machine 20 is started, the glove 9 is removed by the arm piece 82 of the glove releasing device 80 after the overedging.
As soon as 0 is removed, the upper and lower levers 6 of the holding device 50
The finger 92 of the glove is sandwiched between 0 and 61. Next, the pinching device 5
0 moves away from the seam 21 and pulls out the glove 90,
An empty sewing thread 25 is formed between the tubular sewing portion 21 and the glove 90.

As the negative pressure cylinder 36 approaches the tip of the tube stitching portion 21, the vertical levers 60 and 61 approach the tube stitching portion 21 again. At this time, the loose sewing thread 25 that has come loose is sucked into the negative pressure cylinder 36. Then, at a position where the up / down levers 60, 61 are close to the tube sewing portion 21, the blade 72 passes through the inlet of the negative pressure tube 36 to cut the empty sewing thread 25, and sucks the cut empty sewing thread into the negative pressure tube 36.

The upper and lower levers 60 and 61 are again attached to the tubular sewing portion 21.
At a remote position away from the upper and lower levers 60 and 61, the processed glove 90 is dropped downward.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A knitting glove wrist overhanging device according to the present invention comprises a base 1, an overlock sewing machine 20 mounted on the base 1, a glove holding device 50, an empty sewing thread suction device 30, and an empty sewing thread cutting device. It is composed of a device 70 and a glove removing device 80.

The overlock sewing machine 20 will be described. The overlock sewing machine 20 is provided with a cantilever type bobbin thread device built-in tubular sewing portion 21, and the wrist mouth portion 91 of the knitted glove 90 is fitted into the tubular sewing portion 21. A needle bar 23 for attaching a sewing machine needle 24 that reciprocates up and down is provided in the radial direction above the tubular sewing portion 21. Fit the wrist opening 91 of the knitted gloves 90 to the tubular sewing portion 21,
When the tubular sewn portion 21 and the glove 90 are rotated and the needle bar 23 and the sewing needle 24 are moved up and down, the tubular sewn portion 21 overhangs the glove wrist opening 91 along the entire circumference thereof.

The glove gripping device 50 will be described. A base end of a reciprocating rotary arm member 52 is pivotally supported by a vertical shaft 51 arranged at the rear of the base 1, and by expansion and contraction of a fluid pressure cylinder 53 such as air arranged between the base 1 and the arm member 52. The first stopper piece 54 or the second stopper piece 55 is rotated until it comes into contact with the first position 56 or the second position 57. Upper and lower horizontal pins 58 and 59 are provided at the tip of the arm member 52, and the base ends of the upper and lower levers 60 and 61 are pivotally supported by the upper horizontal pin 58 and the lower horizontal pin 59, and the upper fluid cylinder 62 is provided. The expansion / contraction of the upper lever 60 allows the upper lever 60 to swivel right above and in the range of 90 degrees. Further, the lower fluid cylinder 63 is expanded and contracted so that the lower lever 61 can rotate in a range of 90 degrees from right below to right beside. When the up and down levers 60 and 61 face right side, the finger portion 92 of the glove 90 can be held between them. Also, both levers 60, 6
1 is provided with a stopper member 64 that regulates both rotational positions.

Further, when both levers 60 and 61 are in the positions directly beside and the arm member 52 is in the first position 56, both levers 6 are
0 and 61 are arranged to be close to the tubular sewing portion 21.
As shown in FIG. 10, racks 67, 67 are provided above and below the non-rotating piston rod 66 of one fluid cylinder 65.
Alternatively, the clamping device 50 may be configured by fitting and fixing the base ends of the upper and lower levers 60 and 61 to the gear shafts of the upper and lower gears 68 and 69 that mesh with the upper and lower racks 67 and 67, respectively.

Further, the vertical shaft 5 is provided in a vertical column provided with a fan-shaped hole.
1 is rotatably inserted and supported, and a radius plate having a vertical shaft 51 as a base end is arranged in a fan-shaped hole so as to be airtightly slidable, and a pressurized fluid is placed in either of the space chambers formed on both sides of the radius plate. It is also possible to replace the fluid pressure cylinder 53 with the vertical shaft 51 configured to reciprocally rotate by sending.

The empty sewing thread suction device 30 will be described.
A bifurcated arm 32 is rotatably supported on an inclined shaft 31 supported on the base 1. A fluid pressure cylinder 35 is arranged between the short piece 34 of the arm 32 and the base 1, and the long piece 33 of the arm 32 is raised or lowered by the expansion and contraction of the fluid pressure cylinder 35. . A negative pressure cylinder 36 is provided at the tip of the long piece 33, the lower end of the negative pressure cylinder 36 is opened, and when the long piece 33 comes down and hits the stopper member 37, the negative pressure cylinder 36 is provided. The lower end opening of the is close to the tip of the tubular sewing portion 21. The negative pressure cylinder 36 is connected to the flexible tube 38 and the suction port (which becomes negative pressure) of the pressurized transport dust collector 40. In the figure, the short piece 34 is bent on the upper side of the long piece 33, but the short piece 34 is bent on the lower side of the long piece 33, and the fluid pressure cylinder 35 is positioned below the long piece 33. It can also be placed in.

The empty sewing thread cutting device 70 will be described.
An air cylinder 71 is provided on the long piece 33 of the bifurcated arm 32, and when the blade 72 that advances and retracts due to the expansion and contraction of the air cylinder 71 advances, it projects into the opening of the negative pressure cylinder 36 to cut the thread. ing.

The glove removing device 80 will be described. An air cylinder 81 is provided on the front side of the overlock sewing machine 20 along the left-right direction, an arm piece 82 is provided on a plunger 83 of the air cylinder 81, and the tip of the arm piece 82 at the plunger 83 shortened position is a cylinder. It is at a position displaced from the tip of the sewn portion 21. In addition, 2 is a compressed air source, 3
Are cylinders 35, 81 and cylinders 53, 62,
A hose connecting 63, 65, 71 with the compressed air source 2 is an electromagnetic valve 4 interposed in the hose 3, and an electric control box 5 controls each electromagnetic valve 4 and the sewing machine 20. A foot switch 6 is connected to the control box 5.

Next, the operation of the embodiment will be described.

First step

The needle bar 23 of the overlock sewing machine 20 is stopped, the tubular stitch portion 21 is also stopped, and the long piece 3 of the forked arm 32 is stopped.
3, the arm member 52 is in the second position 57, the upper lever 60 and the lower lever 61 are in the vertically open position, the blade 72 is in the retracted position, and the arm piece 82 is also in the retracted position. .

In this state, the wrist mouth portion 91 of the glove 90 is fitted into the tubular sewn portion 21 manually by the operator. Next, when the foot switch 6 is stepped on and released, a signal is transmitted to the control box 5 and the tubular sewing portion 21 makes at least one rotation to form the overedging portion 93. At this time, the arm member 52
Moves to the first position 56.

Second step

Immediately after the air cylinder 81 extends and the arm piece 82 pushes the outer end of the wrist opening 91 and the up / down levers 60 and 61 close to pinch the finger 92, the arm member 52 moves to the second position 57.
Move to. At this time, the empty sewing thread 25 is pulled out between the glove 90 and the overlock sewing machine 20.

Third step

The empty sewing thread suction device 30 descends and the negative pressure cylinder 36
The open end of the arm member 52 comes close to the side of the empty needle thread 25 on the tubular sewing portion 21 and the arm member 52 starts to move to the first position 56. While the empty stitching thread 25 is loosened during its movement, the loose thread is sucked into the negative pressure cylinder 36 to form a loop.

Fourth step

The blade 72 advances and cuts around the both ends of the empty sewing thread 25 which is looped, and the long piece 33 rises. The cut empty sewing thread 25 is collected in the dust collector 40 via the flexible tube 38.

The arm member 52 moves from the first position 56 to the second position 5
During the process of moving to 7, the levers 60 and 61 open and the glove 90
Falls and enters the product storage device 7.

Although only the upper and lower levers 60 and 61 are described in the embodiment, a rubber plate may be stretched on the contact surface with the glove 90.

[0029]

According to the present invention, all that remains as manual work is the work of fitting the wrist opening of the glove into the tubular sewing portion 21 and the work of activating the sewing machine.

The edging step, the glove removing step, the empty sewing thread cutting and removing step, and the step of sending the processed glove to the product storage device do not require human labor.

Therefore, one operator can use a plurality of overlock sewing machines, which can contribute to the improvement of efficiency and the reduction of manufacturing cost.

[Brief description of drawings]

FIG. 1 is an overall front view of a holding device in a second position and a suction device in a raised position.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view corresponding to FIG. 2 in which the clamping device is in the first position.

FIG. 4 is a side view of the holding device with the upper and lower levers closed.

FIG. 5 is a side view of the holding device with the upper and lower levers opened.

FIG. 6 is a side view of the empty sewing thread suction device with the negative pressure cylinder raised.

FIG. 7 is a side view of the empty sewing thread suction device with the negative pressure cylinder lowered.

FIG. 8 is a side view of the empty sewing thread cutting device with the blade retracted.

FIG. 9 is a side view of the empty sewing thread cutting device with the blade advanced.

FIG. 10 is a view showing another embodiment of the holding device.

[Explanation of symbols]

 1 Base 2 Compressed Air Source 3 Hose 4 Solenoid Valve 5 Control Box 6 Foot Switch 7 Product Storage Device 20 Overlock Sewing Machine 21 Tubular Stitching Part 23 Needle Bar 24 Sewing Needle 25 Empty Sewing Thread 30 Suction Device 31 Inclined Shaft 32 Bifurcated Arm 33 Long piece 34 Short piece 35 Fluid pressure cylinder 36 Negative pressure cylinder 38 Flexible tube 39 Vacuum source 40 Pressurized transfer dust collector 50 Clamping device 51 Vertical shaft 52 Arm member 53 Fluid pressure cylinder 54 First stopper piece 55 Second stopper piece 56 1st position 57 2nd position 58 Upper horizontal pin 59 Lower horizontal pin 60 Upper lever 61 Upper lever 61 Lower lever 62 Upper fluid cylinder 63 Lower fluid cylinder 64 Stopper member 65 Fluid cylinder 66 Piston rod 67 Rack 68 Gear 69 Gear 70 Cutting device 71 Air Cylinder 72 Blade 80 Disengagement Device 81 Air cylinder 82 Arm piece 83 Plunger 90 Gloves 91 Wrist mouth part 92 Finger part 93 Edged part

Claims (2)

[Claims] 1. A wrist mouth portion (9) of a knitted gloves (90).
1) an overlock sewing machine (20) having a tubular sewing part (21) for fitting, an arm member (52) reciprocating about a vertical shaft (51), and an arm member (52) attached to the tip of the arm member (52), Upper lever (60) that opens from the horizontal position to the upward position
And a lower lever (61) that opens to a downward position, and the upper and lower levers (60, 61) in the closed state are used for the tubular sewing portion (2).
1) A gripping device (50) for a glove that moves from a tip position to a position away from the tip position, and a negative pressure cylinder (36) that is close to the cylinder sewing portion (21) at a lowered position and that sucks an empty sewing thread (25). A knitting device for knitting gloves, which comprises a suction device (30) and an empty sewing thread cutting device (70) having a knife (72) that moves forward and backward in the opening of a negative pressure cylinder (36). 2. A wrist mouth portion (9) of a knitted gloves (90)
An overlock sewing machine (20) having a tubular stitching portion (21) to which 1) is fitted, and a glove detaching device (80) for pushing in a direction in which the wrist mouth portion (91) of the glove fitted to the tubular stitching portion (21) is removed. An arm member (52) that reciprocally rotates about a vertical axis (51), an upper lever (60) attached to the tip of the arm member (52) and opened from a horizontal position to an upward position, and a lower lever opened to a downward position. (61) and a glove gripping device (50) in which the up and down levers (60, 61) in the closed state move to a position away from the tip position of the tubular sewing portion (21).
And a suction device (30) having a negative pressure cylinder (36) for sucking the empty sewing thread (25), which is close to the cylinder sewing part (21) in the lowered position, and is laterally arranged in the opening of the negative pressure cylinder (36). A blanking thread cutting device (70) having a knife (72) that advances and retracts from a direction, and a rimming device for a wrist mouth portion of a knitted glove.