JPH11302903A - Treatment of stocking fabric and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry out the complete automation (unmanned operations) of a sewing process for panty hose ranging from pickup operations of a stocking fabric to opening operations of a welt part by utilizing a suction air stream. SOLUTION: A stocking fabric X picked up from a housing container 50 of a feed posture control mechanism Y with a first pickup mechanism 60 is stretched out into a longish form in a horizontally placed passage 70 and the stretched fabric X is then picked up with a second pickup mechanism 80. Whether the picked up part is a tiptoe part or a welt part of the fabric X is detected with a detecting means 84. The posture is subsequently controlled so that the welt part is ahead when sucking air and conveying the fabric X through a transport pipe 90 after the detection. Thereby, the fabric X is fed to a welt part opening mechanism and nipped with a pair of feed rollers 134 and 135 and moved. The welt part W is further opened by the movement and the actions of the air suction stream and the opened part is delivered onto attaching arms 150.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantyhose crotch sewing machine, in which a stocking cloth is transferred to a holding arm for automatically mounting the stocking cloth on a mounting arm. The present invention relates to a method and an apparatus for treating stocking dough.

[0002]

2. Description of the Related Art To manufacture pantyhose,
The inner crotch part which becomes the panty part is sewn with the rise sewing machine by aligning the welt parts of the two tubular stocking cloths knitted from the original thread with the right and left, and then each toe part of this stocking cloth is sewn with the toe sewing machine By doing so, one pair of pantyhose is obtained.

[0003] The pantyhose that has completed the sewing operation is further processed into various products such as dyeing, set finishing, and packaging to become a product.

As described above, pantyhose is
It is manufactured through two steps of rise sewing and toe sewing. As a sewing machine for performing both steps, an automatic rise sewing machine developed by the present applicant before (Japanese Patent Publication No. 52-8834).
In addition, automatic toe sewing machines (JP-B-55-37272) are widely used in practice.

In the production of pantyhose using both sewing machines, the stocking material to be suctioned and conveyed is supplied in a fixed posture to a welt opening mechanism for opening the welt portion of the stocking material by an inspiratory flow. By connecting the welt opening mechanism to the mounting arm of the rise sewing machine, the pantyhose sewing process can be fully automated.
No. 0088.

[0006] These processing apparatuses are provided with pickup means for adsorbing and lifting the stocking dough immediately above a storage container for randomly storing the stocking dough, and transporting the lifted stocking dough by a suction pipe by a transport pipe. In the structure, whether the end of the stocking cloth is a welt or a toe is detected by a sensor means based on a quantitative difference between the welt and the toe, and thereafter, the posture of the stocking cloth is controlled and sent to the welt opening mechanism. It has become.

[0007]

By the way, the pickup means in the above-mentioned conventional processing apparatus uses two sets of pickup means to lift and lower the stocking dough in two steps so as not to suck a plurality of doughs. In the first stage, the stocking fabric is picked up from the storage container, and in the second stage, the free end of the picked up fabric is re-adsorbed and shaken down into one piece. It takes a lot of time for the pickup work, and the entire device cannot be operated efficiently.
As a result, the efficiency of the rise sewing machine and the toe sewing machine is reduced.

In addition, the stocking dough adsorbed in the first stage is not always adsorbed under the same conditions.
In the second stage, the dough may not necessarily be shaken down to one sheet because it is stuck in an unstable state because it is folded in two or the fabrics are entangled with each other. As a result, there is a problem of lack of certainty.

Furthermore, the welt opening mechanism of the above-mentioned conventional apparatus does not completely turn over the welt at the opening end of the pipe, but merely opens it in, for example, a trumpet shape. When the mounting arm is inserted into the opening even if the opening becomes stable, the opening may be narrowed and the delivery work to the mounting arm may not be performed smoothly, which may hinder the delivery work. Has become. In particular, this transfer operation is the final step of the processing apparatus, and therefore, trouble in the transfer operation is a fatal drawback of the processing apparatus.

Therefore, in the present invention, the steps from the stocking cloth pick-up step to the transfer of the opened welt portion to the mounting arm are performed quickly and efficiently synchronously based on the phase difference between the respective working positions. In addition, it is possible to take out the stocking material destined for one sheet without fail, and by opening the welt portion so as to turn it over the pipe so that the welt portion can be transferred accurately and reliably onto the mounting arm. It is an object of the present invention to provide a method and an apparatus for processing stocked dough.

[0011]

In order to solve the above-mentioned problems, a first aspect of the present invention is to pick up a stocking material randomly stored in a storage container, and lay the stocking material flat from the lowermost portion by an intake flow. Transporting the stocking dough into the passage, holding the first end of the transferred stocking dough in the flat passage, stretching the other end of the stocking dough along the longitudinal direction of the flattened passage. A step of lifting the stocking dough from the flat passage while holding a predetermined portion of the stocking dough placed flat, and a step of lifting the stocking dough, in the lowermost end portion of the stocking dough being lifted. Is a toe or a welt, and based on the detection, the wells of the stocking dough are transported through the transport pipe by suction. Controlling the posture so that the part comes first, and supplying the stocking cloth whose posture has been controlled to the welt opening mechanism, opening the welt by the action of the intake air flow in the pipe of the opening mechanism, and opening the welt. And a step of delivering the same to the mounting arm, and these steps are performed synchronously and redundantly based on the phase difference between the respective working positions. .

According to a second aspect of the present invention, in the first aspect, in the step of placing the stocking dough flat along the longitudinal direction of the flat passage, two or more stocking doughs are conveyed into the flat passage. In this case, a configuration is adopted in which one stocking fabric is left and another stocking fabric is returned into the storage container through the discharge pipe.

According to a third aspect of the present invention, in the step of opening the welt portion of the stocking dough, the leg portion of the stocking dough is clamped by a pair of rotating rollers in a pipe on which the intake air flows. A structure in which the welt portion is moved toward the pipe opening end, and the welt portion is opened by completely turning the welt portion on the outer periphery of the pipe opening end by the movement and the action of the intake air flow. It is.

According to a fourth aspect of the present invention, in the third aspect of the invention, a plurality of sensors detect a welt portion turned over on the outer periphery of the pipe opening end, and a plurality of the welt portions turned over by this detection. Is temporarily held.

According to a fifth aspect of the present invention, a storage container for randomly storing a large number of stockings is provided, a first pickup mechanism is supported on the storage container so as to be able to move up and down, and the storage container is controlled by the first pickup mechanism. Means for inhaling and transporting the stocking material taken from, and a longitudinal flat passage that stretches the transported stocking material straight and lays it flat, and the flattening passage has a stocking material on one side. It has a holder for temporarily holding one end, and a guide pipe branched and connected in the vertical direction. The guide pipe holds a predetermined portion of the stocking cloth placed in the flat passage and lifts it upward. Supports the second pickup mechanism so as to be able to move up and down, and detects whether the lowest end of the lifted stocking material is a toe or a welt. And a means for controlling the attitude so that the welt portion comes first depending on the detection result of the detection device, and a welt portion opening mechanism for opening the welt portion of the stocking cloth. It is.

According to a sixth aspect of the present invention, in the invention of the fifth aspect, a discharge pipe for the stocking dough communicating with the storage container is connected to a side opposite to the holding tool provided on one side of the flat passage. The configuration is adopted.

According to a seventh aspect of the present invention, in the invention of the fifth aspect, a sensor for detecting the turned-up welt portion and a holding device for temporarily holding the pipe are provided at the pipe opening end of the welt opening mechanism, respectively. Are arranged at equal circumferential intervals.

Here, the stocking material picked up from the storage container by the first pickup mechanism is conveyed from the lowermost end thereof into the flat passage, and firstly the stocking material conveyed in the flat passage. While holding the reached one end, the other end is stretched to place the stocking dough flat along the longitudinal direction of the flat passage, but at this time, two or more doughs are transported into the flat passage. If so,
The other dough is allowed to return to the container through the discharge pipe, leaving one piece of dough laid flat.

The stocking material placed flat in the flat passage is then lifted from the flat passage by the second pickup mechanism, and in this lifting process, it is determined whether the lowermost end is a toe or a welt. The detection means detects the difference in thickness, and after this detection, the stocking material is sucked into the transport pipe and sent to the welt opening mechanism as it is when the welt is first, and the posture is controlled by the inversion means when the toe is first Then, the welt portion is sent to the welt opening mechanism first, and then the stocking fabric sent to the welt opening mechanism is pinched and moved by a pair of rotating rollers. This opens the welt portion.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 show the overall structure of a stocking dough processing apparatus, which comprises a stocking dough X feeding attitude control mechanism Y in a first step and a welt opening mechanism Z in a second step. The supply attitude control mechanism Y includes a storage container 50 for randomly storing a large number of stockings X, a first pickup mechanism 60 disposed immediately above the storage container 50, and a first pickup mechanism 60. A flat passage 70 laid laterally in communication, a second pickup mechanism 80 connected upright to the flat passage 70, a transport pipe 90 branched and connected to the second pickup mechanism 80, and a pipe 90. Means 10 provided at a position close to the second pickup mechanism 80 in the middle of
0 and stock means 1 provided downstream of the transport pipe 90
10.

The storage container 50 is continuously rotated in one direction at a low speed by a roller 52 of a motor 51 which is in sliding contact with the outer peripheral surface, and a first pickup mechanism 60 has a lower end tapered immediately above the storage container 50. A vertically long guide pipe 61 is fixed vertically, and a pickup bar 62 housed in the guide pipe 61 is connected to an endless belt 63 so that the position can be controlled by a reversible servomotor. It is driven to move up and down.

The lower end of the pickup bar 62 is formed in a truncated cone shape (see FIG. 3), and a suction hole (not shown) provided in the lower end surface or the inclined side surface of the tip portion is appropriately connected to a vacuum pipe through a pipe. It is connected to the. Note that a sensor 1 for detecting the stocking cloth X is disposed below the guide pipe 61.

The flat passage 70, as shown in FIG.
A transport pipe 71 branched and connected to the guide pipe 61 is connected to the guide pipe 61 through the shutter 21 at one end, and a number of small ventilation holes are provided at the other end. A cloth blocking plate 73 provided with a cloth 72 and a cloth holder 74 are provided. The cloth holding plate 73 is connected to a suction source A via an opening / closing shutter 22, so that communication with outside air can be cut off via a shutter 23.

In the flat passage 70, sensors 2 and 3 for detecting the stocking material X are disposed on both sides thereof, and a discharge pipe 75 for the stocking material X is connected to one side of the transport pipe 71. ing.

At the end of the discharge pipe 75, a discharge valve 76 for the stocking cloth X facing the storage container 50 is connected. The discharge valve 76 is connected to the suction source A via the shutter 24. I have.

The second pickup mechanism 80 has a guide pipe 81 which is connected to the flat passage 70 through the shutter 25 in an upright manner.
The pickup bar 82 is housed therein.

The pickup bar 82 is connected to an endless belt 83 like the pickup bar 62 of the first pickup bar mechanism 60 described above.
It is driven to move up and down by a reversible motor,
The lower end surface is provided with a suction hole (not shown) connected to a vacuum pipe.

At the lower end of the guide pipe 81 of the second pickup mechanism 80, it is determined whether the lowermost end of the stocking cloth X sucked by the pickup bar 82 and lifted from the flat passage 70 is a toe or a welt. A detecting means 84 for detecting by thickness is provided.

The detecting means 84, as shown in FIG.
The cylinders 85 and 86 are arranged with the axis of the guide pipe 81 interposed therebetween.
7 and 88, one of the cylinders 85 is made to have a constant moving stroke, and the other is to measure the amount of piston movement of the cylinder 86 with an encoder or a magnet scale. The difference in the thickness of the toes is detected.

For example, when the stroke of both cylinders 85 and 86 is 25 mm, one cylinder 85 moves the entire stroke, and the other cylinder 86 moves while leaving the cloth thickness, and the movement amount is 24 mm or more (thickness is 24 mm or more). If it is 1 mm or less, a thin toe portion is set in advance, and if it is 23.9 mm or less (thickness is 1.1 mm or more), a toe portion is determined (teaching) so as to be judged as a welt portion. This setting can be arbitrarily set according to the type of the stocking cloth X.

The sensor 4 for detecting the stocking material X is disposed between the detecting means 84 of the guide pipe 81 and the shutter 25.

At the lower part of the guide pipe 81, the detecting means 8
A transport pipe 90 for sucking and transporting the stocking dough X lifted into the guide pipe 81 by raising the pickup bar 82 is connected in a branch shape at a position directly above the transport pipe 90. A stock means 110 is provided at the end of the transport pipe 90, and is connected in the middle of the dough stretching pipe 120 in the welt opening mechanism Z.

As shown in FIG. 3, the reversing means 100 includes an opening / closing shutter 2 provided in the middle of the transport pipe 90.
A reversing pipe 101 is connected between positions 6 and 27.
8 and 29, and a large number of vent holes 102 on the way.
The dough detecting sensors 5 and 6 are arranged outside the middle part of the reversing pipe 101 and slightly downstream of the shutter 27 of the transport pipe 90, and are provided. The reversing pipe 101 is connected to the suction source A via the shutter 29.

The stock means 110 is shown in FIGS.
As shown in the figure, a double-hole perforated shutter 41 and an opening / closing shutter 30 are provided at the end of the transport pipe 90, and an outer cylinder 111 is externally fitted on the upstream side thereof, and a portion covered by the outer cylinder 111 of the transport pipe 90. Are provided with a number of suction holes 112, an outer cylinder 111 is connected to a suction source A via an opening / closing shutter 31, and sensors 7 and 8 for detecting a stocking material X are arranged on the upstream and downstream sides of the outer cylinder 111. Have been.

Next, the structure of the welt opening mechanism Z will be described. 1, 2 and 4, the welt opening mechanism Z includes a closed box 122 in which a dough stretching pipe 120 horizontally arranged on a gantry 121 is provided in the middle.
Is divided into a front pipe 120a and a rear pipe 120b, a transport pipe 90 is connected in the middle of the rear pipe 120b, a rear end of the rear pipe 120b is connected to the suction source A via the shutter 32, and a rear end side face is formed. Shutter 33
The stocking cloth X detection sensor 9 is disposed outside the rear pipe 120b.

A sliding pipe 1 is provided outside the front pipe 120a.
The cylinder 12 is inserted so as to be movable in the axial direction, and the cylinder 12 is moved forward by a predetermined stroke from a retracted position in which the tip thereof coincides with the tip of the front pipe 120a.
The forward / backward movement is given at 4.

A large-diameter pipe 125 is provided which is fitted outside the sliding pipe 123 at a position close to the front end thereof and is fixedly arranged so as to be coaxial with the front pipe 120a. And a sliding pipe 123 to form an intake passage 126 whose rear end is closed.
A plurality of fins 127 provided on the sliding pipe 123 are radially provided on the distal end side of 6, and the fins 127 finely divide the intake passage 126.

In the middle of the large-diameter pipe 125, a suction pipe 128 connected to a powerful suction source B is connected so as to communicate with the intake passage 126. The tip of the large-diameter pipe 125 is the tip of the front pipe 120a. The opening is openable and closable by a lid 130 operated by a cylinder 129.

As described above, the intake pipe 126 is finely divided by the plurality of fins 127, so that the suction pipe 1 is formed.
The intake air acting on the passage 126 through the passage 28 uniformly acts in each of the divided passages 126 in the entire outer periphery of the sliding pipe 123, and as a result, the welt portion of the stocking cloth X also moves on the sliding pipe 123. At the distal end of 123, the welt portion is spread outward so that the bud of the flower blooms, and is sucked while opening so that it is completely turned over the outer periphery of the distal end of the sliding pipe 123. Will be.

As shown in FIGS. 5 and 6, the sensor 10 for detecting the turned-up welt portion and the holding device 131 for temporarily holding the turned-up welt portion by the detection of the sensor 10 are provided as shown in FIGS. The large diameter pipe 12
A plurality of sets (three sets in this embodiment) are arranged at equal circumferential intervals on the outer periphery of the distal end of No. 5.

The large-diameter pipe 125 and the sliding pipe 12
3, sensors 11, 12, and 13 for fabric detection are provided.
Is arranged.

The suction pipe 128 is connected to a dedicated suction source B via a shutter 34, and the shutter 3
5 allows free communication with the outside air.

A perforated shutter 42 is provided between the closed box 122 and the sliding pipe 123 in the middle of the front pipe 120a.
And 43 are provided, a discharge pipe 132 is connected, shutters 36 and 37 are provided in the middle and on the side of the root side of the discharge pipe 132, and the end of the pipe 132 has a discharge valve as shown in FIG. The stocking cloth X detection sensor 14 is connected to the suction source A via the shutter 133 and the shutter 38, and is provided near the end.

In the closed box 122, a pair of upper and lower feed rollers 134 and 135 are formed by using abrasion-resistant rubber material.
The rollers 134 and 135 are supported so as to be able to press and separate from each other by appropriate driving means, and are rotated by driving means such as a motor in opposite directions so as to enable switching between high speed and low speed. Constitute.

The stocking dough processing apparatus of the present invention has the above-described configuration. Next, the operation of the apparatus will be described with reference to FIGS.

First, the initial state of the device (power switch O
In N), the suction sources A and B operate and the first and second suction
Pickup mechanism 60, 80 pickup bar 6
2 and 82 are in the raised position, a vacuum pump (not shown) is operated, and a suction force is applied to the suction holes of the bars 62 and 82, and the storage container 50 for the stocking cloth X slowly rotates in one direction. Then, the holding member 74 of the flat passage 70 waits to rise, the holding members 87 and 88 of the thickness detecting means 84 wait for opening, the holding member 104 of the reversing means 100 waits for rising, the feed roller 134 of the closed box 122, Numerals 135 depart from each other and stop rotating, the sliding pipe 123 is at the retracted position, and each of the holding tools 1 provided at the end of the large-diameter pipe 125
Reference numeral 31 stands by for ascending, the lid 130 is in the closed position, all the shutters 21 to 38 are in the closed state, the perforated shutters 41 and 43 are in the closed state, and the perforated shutter 42 is in the open state.

When the start switch is turned on next from the initial state, the pickup bar 62 of the first pickup mechanism 60 first descends, and the suction hole (not shown) of the bar 62 causes the inside of the storage container 50 to move. The bar 62 rises and the stocking material X is taken up in the guide pipe 61 after the suction.

When the stocking material X is sucked by the pick-up bar 62, if the suction hole is on the lower surface of the bar 62, the material group of the storage container 50 is forcibly sucked so as to be pressed down. Often adsorb dough.

On the other hand, if the suction hole is located on the side of the tip of the bar 62, when the bar 62 is lowered into the storage container 50, the cloth closest to the tip of the bar 62 can be drawn from the side. Therefore, the probability of adsorbing two or more doughs is smaller than that in the case where the suction holes are provided on the lower surface, but nonetheless, it is not eliminated.

Therefore, in the present invention, even when the pickup bar 62 adsorbs two or more doughs, the doughs are conveyed as they are to the flat passage 70 in the next step. One piece of fabric is left above, and other excess fabric is removed and returned to the storage container 50.

The stocking cloth X taken up in the guide pipe 61 by the upward movement of the pickup bar 62
Next, when the sensor 1 detects the lowermost end of the bar 62 while the bar 62 is rising, the bar 62 stops rising,
The stocking cloth X adsorbed there is introduced into the guide pipe 61.
(Solid line in FIG. 7).

The cloth detection by the sensor 1 is as follows.
By opening the shutters 21 and 22 and applying the suction force from the suction source A to the inside of the transport pipe 71 through the flat passage 70, the cloth X picked up in the guide pipe 61 is transferred from the lowermost end thereof to the transport pipe 71. When the suction is stopped by the pickup bar 62 at this time, the fabric X sucked at the lowermost end thereof into the transport pipe 71 is separated from the bar 62, and The air is conveyed by suction to one end of the flat passage 70 through the base 71, and is stored in a block by the blocking plate 73 (the state shown by chain lines in FIG. 7).

As described above, when the stocking dough X is stored in a lump at the blocking plate 73 of the flat passage 70, the stored dough is detected by the sensor 3, and by this detection,
First, the holder 74 is moved down, and then the shutters 21 and 22 are moved.
Is closed, and the shutters 23 and 24 are opened.

The downward movement of the holder 74 holds the cloth edge that has reached the end of the blocking plate 73 first. Also shutter 2
The closing of 1 enables the next picking-up of the stocking material X (take-out from the storage container 50) by the first pick-up mechanism 60, and the closing of the shutter 22 moves in the direction from the transport pipe 71 to the blocking plate 73 of the flat passage 70. The suction force from the suction source A that has acted is cut off. Opening of the shutter 23 introduces outside air into the flat passage 70, and opening of the shutter 24 causes the suction force from the suction source A to act on the flat passage 70 through the discharge valve 76 and the discharge pipe 75.

As a result, the stocking dough X stored in the blocking plate 73 of the flat passage 70 in a lump is now applied to the holding pipe 7 by the action of the suction force acting in the direction of the discharge pipe 75.
4 and the other end is stretched in the direction of the discharge pipe 75, whereby the stocking material X is laid flat along the longitudinal direction of the flat passage 70 as shown by the solid line in FIG.

At this time, if two or more fabrics are picked up and conveyed into the flat passage 70,
Except for one piece of fabric, one end of which is held by the holder 74, the remaining excess fabric is returned to the storage container 50 from the discharge valve 76 via the discharge pipe 75.

When the fabric X conveyed into the flat passage 70 is stretched longitudinally in the passage 70 and laid flat, the fabric end on the stretched side is detected by the sensor 2.
, The shutters 23 and 24 are closed to shut off the suction force from the suction source A, and the holding tool 74 is lifted and returned to release the holding of the fabric X.

In the cloth detection by the sensor 2, the shutter 25 is further opened, the pickup bar 82 of the second pickup mechanism 80 is lowered, and the suction hole (not shown) of the bar 82 enters the flat passage 70. A predetermined portion (a leg portion L near the edge of the cloth held by the holder 74) of a single piece of the stocking cloth X is sucked, and after the suction, the bar 82 rises to move the stocking cloth X into the guide pipe 81. Pick up (lift) inside.

When the sensor 4 first detects the presence of the cloth and then detects the absence of the cloth while the pickup bar 82 is rising, the rising speed of the bar 82 is switched from the high-speed movement to the low-speed movement. The end of the picked-up cloth is stopped at a predetermined position of the thickness detecting means 84 (the state shown by chain lines in FIG. 8).

That is, the detection position of the sensor 4 and the detection means 8
Since the distance between the predetermined positions (detection positions) of No. 4 is a predetermined fixed distance, the pickup bar 82 is moved up at a low speed after the sensor 4 detects that there is no cloth, and then the pickup bar 82 is stopped. By performing the control so that the end of the picked-up cloth (the lowermost end) is reliably stopped at a predetermined position in the detection range of the detection means 84.

When the edge of the stocking material X (toe T or welt W) stops at a predetermined position of the detecting means 84 in the guide pipe 81, the detecting means 84 detects the thickness of the material end. This detection is based on two cylinders 8
It is measured by the amount of piston movement (displacement) of 5, 86. That is, when the clipping members 87, 88 provided on the piston rods of the cylinders 85, 86 pinch the cloth end from both sides by the movement of the piston rod and measure it, whether the cloth end is the toe portion T or the welt portion W is determined. Is measured. This is performed by presetting the piston movement amount (dimension) of one of the cylinders 85 and 86 by a teaching function, and comparing and discriminating the set value with an actually measured value using an encoder or a magnet scale. I have to.

When the detecting means 84 determines that the toe is the toe T, the stocking cloth X picked up by the pickup bar 82 in the state of FIG.
Is sucked and held, and the toe portion T at the lowermost end is
4 is held between the holding members 87 and 88.

From the above state, the shutter 25 is closed,
The shutters 26, 27 and 31 (FIG. 1) are opened, and the suction of the pickup bar 82 is stopped.

The closing of the shutter 25 conveys the next stocking material X into the flat passage 70 and allows the start of the work of laying the cloth X in the passage 70. Also, shutter 2
Opening of 6, 27 and 31 allows the suction force from the suction source A to act on the branch connection with the guide pipe 81 from the suction hole 112 of the stock means 110 through the transport pipe 90 and the welt section W by the pickup bar 82. Is released, the stocking cloth X leaves the toe portion T clamped by the clamps 87 and 88 of the detecting means 84 in the guide pipe 81, and moves the suction-released welt portion W side first. And sucked into the transport pipe 90 (see FIG. 9).

When the sensor 6 detects the cloth X in the suction process, the holding of the toe portion T by the clipping members 87 and 88 is released, and as a result, the cloth X sucked into the transport pipe 90 remains as it is on the welt portion W. Is transported by suction through the transport pipe 90 to the stock means 110 and stopped by the shutter 41 (see FIG. 12).

When the sensor 7 (FIG. 1) detects the cloth X during the transportation in the transport pipe 90, the shutter 26,
27 and 31 are closed. The closing of the shutters 26 and 27 enables the second pick-up mechanism 80 to start picking up the next fabric, and the closing of the shutter 31 stops the suction force from the suction source A acting on the transport pipe 90.

In the case where the detecting means 84 determines that the portion is the welt portion W In the state of FIG. 8, the stocking material X picked up by the pickup bar 82 is sucked and held by the leg portion L near the toe portion T, and becomes the lowermost end. The welt W is detected by the detecting means 8.
4 is held between the holding members 87 and 88.

From the above state, the shutter 25 is closed, the shutters 26 and 29 are opened, and the suction of the pickup bar 82 is stopped.

The closing of the shutter 25 is performed in the same manner as when the shutter 25 is determined to be the toe T as described above.
Is transported to the flattening passage 70 so that the flattening operation of the fabric X can be started. The opening of the shutters 26 and 29 causes the suction force from the suction source A to be applied to the inversion pipe 101 of the inversion means 100.
Guide pipe 81 which is the front end of transport pipe 90 through
And the release of the suction holding on the side of the toe T, the stocking dough X is transported to the transport pipe 90 with the side of the toe T released from the suction first.
Is conveyed into the reversing pipe 101 from the
3 stops (see FIG. 10).

At this time, when the sensor 5 detects the cloth X, the holder 104 is lowered to hold the toe T side, and the holding of the welt W by the holding members 87 and 88 of the detecting means 84 is released. As a result, the entire dough is sucked and conveyed into the reversing pipe 101, and is stored in a lump by the blocking plate 103 (solid line in FIG. 11).

As described above, when the dough X is stored in the reversing pipe 101 in a lump with the toe portion T first, the shutters 26 and 29 are closed and the shutters 27 and 28 and
31 is opened. The closing of the shutter 26 shuts off the guide pipe 81 and the transport pipe 90, so that the next pick-up operation of the fabric X by the second pick-up mechanism 80 can be started, and the closing of the shutter 29 is sucked into the reversing pipe 101. Stop working.

When the shutters 27 and 31 are opened, the suction force from the suction source A is applied to the small suction holes 11 of the stock means 110.
2 through the transport pipe 90 to act on the reverse pipe 101. The opening of the shutter 28 is performed by the reversing pipe 101.
Inside air is introduced inside.

As a result, the dough X stored in a lump in the reversing pipe 101 is sucked and conveyed from the reversing pipe 101 through the transport pipe 90 (in a chain line state in FIG. 11) with the welt portion W at the head. When the sensor 6 detects the cloth X, the holder 104 is lifted and returned, and the cloth holding on the toe T side is released.

Accordingly, the dough X is sucked and conveyed to the stock means 110 via the transport pipe 90 with the welt portion W at the head, and stopped by the shutter 41 (see FIG. 12). Note that the sensor 7 is not transported in the transport pipe 90.
When (FIG. 1) detects the cloth X, the shutters 27, 2
8, 31 are closed and the suction operation into the transport pipe 90 is stopped.

As described above, regardless of which direction the stocking material X picked up from the storage container 50 faces the welt portion W or the toe portion T, the stocking means 11 can be used.
The dough conveyed to zero is conveyed with its posture controlled so that the welt portion always comes first.

The stocking dough X stored in the stock means 110 is detected by the sensor 8, and the shutters 41, 30, 33, and 34 are opened by this detection.

The shutter 34 is opened when the large-diameter pipe 12 is opened.
The suction force from the suction source B is applied to the dough stretching pipe 120 through the suction passage 126 between the sliding pipe 123 and the sliding pipe 123, and the opening of the shutter 33 introduces outside air into the pipe 120.

As a result, the dough X stored in the stock means 110 by opening the shutters 41 and 30 is conveyed into the dough stretching pipe 120 with the welt portion W at the head, and stopped by the shutter 43 (FIG. 12 is a chain line state). ).

The shutters 41 and 30 are opened by first fully opening the shutter 30 and then gradually opening the shutter 41 (both sides open) so that the fabric X is not conveyed in a one-sided state. The dough is reliably conveyed from the (welt portion W) into the pipe 120.

When the cloth X stops at the shutter 43, the cloth X is detected by the sensor 11 next. The cloth detection by the sensor 11 closes the shutters 42, 41, 30, 33, and 34 and opens the shutters 32 and 36.

The closing of the shutter 42
(FIG. 13), and the closing of the shutters 41 and 30 enables the storage of the next fabric X in the stock means 110, and the closing of the shutters 33 and 34 extends. The suction force from the suction source B acting on the pipe 120 is stopped. The opening of the shutter 32 causes the suction force from the suction source A to extend in the direction opposite to the direction of the suction force from the suction source B in the fabric stretching pipe 120, and the opening of the shutter 36 introduces outside air.

As a result, the dough X stopped by the shutter 43 is held by the shutter 42 in the vicinity thereof, and the remaining dough is stretched with the toe portion T first and sucked toward the rear pipe 120b of the pipe 120. Stretched by force (see FIG. 13).

When the dough X is stretched in the direction of the rear pipe 120b of the dough stretching pipe 120, the dough X
Is detected by the sensor 9. The cloth detection by the sensor 9 lowers the roller 134 to pinch the leg portion L of the cloth X between the roller 135 and the roller 135 and drives the roller to rotate. Further, in synchronization with this, the shutters 42, 43 and the shutter 34 are opened.

When the shutters 42 and 43 are opened, the holding of the cloth X is released, and the front and rear portions of the cloth stretching pipe 120 are communicated. Then, when the shutter 34 is opened, the suction force from the suction source B is applied to the fabric stretching pipe 120 again through the intake passage 126 between the large-diameter pipe 125 and the sliding pipe 123. At this time, a suction force is also applied from the suction source A to the rear side of the dough stretching pipe 120. As a result, the dough X holds the leg L near the center thereof with the rollers 134 and 135 as shown in FIG. Then, the welt portion W is sucked toward the front side of the dough stretching pipe 120 and the toe portion T is sucked toward the rear side thereof.

From the above-mentioned state, the cloth X is forcibly expanded by the rotation of the rollers 134 and 135.
0, and when the sensor 12 detects the cloth in the middle of the conveyance, the rotation of the roller is reduced at a low speed (about 1 / the first).
3), and then the welt portion W of the dough is stretched while the rotation of the roller is further reduced to a very low speed (approximately 1/10 of the initial speed) by the detection of the sensor 13, and is conveyed to the front end side of the pipe 120. (FIG. 14 chain line state).

When the dough X is conveyed by the rollers 134 and 135, the toe T side of the dough X is pulled backward by the suction force to prevent the dough being conveyed from being caught between the rollers. . Further, the rotation of the rollers 134 and 135 is reduced to reduce the transport speed of the cloth X, so that the turning operation from the opening of the welt portion W described later can be performed more reliably.

Thus, when the welt portion W of the dough X is conveyed to the front end of the dough stretching pipe 120, the welt portion W is then moved to the sliding pipe 123 and the large-diameter pipe 1.
The welt portion W is caused by the intake flow acting on the intake passage 126 provided between the openings 25 (as shown by the arrows in FIGS. 5 and 6, the intake flow acting uniformly around the circumference) so that the flower just opens. And is completely turned over on the outer periphery of the front end of the sliding pipe 123 while being opened (see FIG. 15).

When the welt portion W is turned over on the sliding pipe 123, the plurality of sensors 10 detect the welt portion W. This sensor 10 is, for example, shown in FIG.
As shown in (3), three of them are arranged at equal intervals on the circumference, and if all of them are detected, it is determined that the turning is good. If not even one is detected, it is determined to be bad.

All the sensors 10 have the sliding pipe 123
When the welt portion W turned up is detected, the rotation of the rollers 134 and 135 is first stopped to stop the conveyance of the fabric X, and the plurality of (three) holding members 131 are lowered and turned over. The welded part W to the sliding pipe 123
Let it be pinched on top. Next, the shutters 34, 36, and 32 are closed to stop the suction force from the suction sources A and B acting from before and after the dough stretching pipe 120. afterwards,
After the upper roller 134 that has stopped rotating is lifted and returned to release the holding of the fabric by the roller, the holding device 1
31 also lifts and returns to release the nipped of the turned-up welt portion W.

The purpose of holding the turned-up welt portion W with the holding device 131 is to stop the suction in the sliding pipe 123 (at this time, the legs of the dough are rollers 134, 1).
35), the fabric stretched in the previous suction conveyance process is pulled back in the opposite direction, so that the turned-up welt portion W is also returned in the opposite direction so that no turning-over failure occurs. To do that.

When the welt portion W of the stocking material X is completely turned over on the sliding pipe 123 in this manner, the lid 130 is opened by the operation of the cylinder 129, and then the sliding pipe 123 is moved to the cylinder 124. As a result, the welt portion W turned over on the slide pipe 123 is transferred to the mounting arm 150 waiting there (see FIG. 16).

As shown in FIG. 16, the transfer operation is performed by the mounting arm 150 sliding on the inner peripheral surface of the sliding pipe 123 as the sliding pipe 123 advances, so that the outer periphery of the sliding pipe 123 is moved. The welt portion W turned up is transferred so as to cover the mounting arm 150 while being returned to the original position.

When the welt portion W is transferred to the mounting arm 150 and the remaining fabric portion is removed from the fabric stretching pipe 120, the sliding pipe 123 then returns and returns, the lid 130 is closed, and the shutter 43 is closed. By closing, one cycle of the processing operation is completed, and the operation returns to the initial state.

On the other hand, the stocking cloth X that has been transferred to the mounting arm 150 with the welt portion W is expanded by the mounting arm 150 in the vertical and horizontal directions. It is designed to be mounted on the holding member 160 of the machine (see FIG. 16).

The above description is based on the case where it is determined that the turning over of the welt portion W is good.
If it is determined to be defective (for example, the state shown in FIG. 17), the shutters 34, 36 and 32 are first closed, and the roller 13
The rotation of the rollers 4 and 135 is stopped, and the roller 134 is raised and returned, and then the shutters 37, 38 and 36 are opened.

When the shutters 34, 36 and 32 are closed, the suction force from the suction sources A and B acting on the front and rear sides of the dough stretching pipe 120 is stopped, and the roller 13 is stopped.
4 and 135, the rotation stop and the rise return cancel the feeding and pinching of the fabric X. The shutters 37, 38, and 36 are opened by applying the suction force from the suction source A to the discharge pipe 132 via the discharge valve 133 (FIG. 1), so that the cloth X in the cloth expansion pipe 120 is removed. The container 50 is drawn into the discharge pipe 132 (shown by a chain line in FIG. 17), and is passed through the discharge pipe 132 from the discharge valve 133 to the storage container 50.
Return to The opening of the shutter 36 introduces outside air.

When the stock X is conveyed by suction through the discharge pipe 132 and the sensor 14 detects the stock X, the shutters 37, 38 and 36 and the shutter 4
3 is closed and returns to the initial state.

Incidentally, the holding member 160 of the rise sewing machine is used.
Consists of a pair of upper and lower and two pairs of left and right holding plates, and one of the stockings X is mounted on the upper left and right pair of holding plates and the lower pair of left and right holding plates.

As described above, the processing apparatus of the present invention uses the stocking material X pick-up
One piece of cloth X is mounted via the mounting arm 150 to one (lower) pair of left and right gripping plates of the gripping member 160 in one cycle of processing work up to delivery to zero. Therefore, in order to attach another cloth X to the other (upper) left and right biting plate pair, one cycle of the processing operation is required again. However, mounting the fabric X on the upper and lower left and right gripping plate pairs by repeating the processing operation twice is time-consuming, inefficient, and causes a decrease in the performance of the rise sewing machine. .

Therefore, in order to solve such a problem and operate the rise sewing machine efficiently, a processing device having exactly the same structure and the same function as the processing device of the present invention described above is separately provided, and two sets are provided. The stocking material X may be separately mounted on the upper and lower left and right bite plate pairs of the bite member 160 by the processing device of (1).

FIGS. 1 and 2 schematically show a state in which a second set of processing apparatuses (shown by two-dot chain lines partially omitted) is provided along with one set of processing apparatuses. That is, the second set of processing apparatuses also includes the first pickup mechanism 60a, the flat passage 70a, the second pickup mechanism 80a, the transport pipe 90a, the reversing means (not shown), and the stock disposed directly above the storage container 50. A mechanism 110a for controlling the supply posture of the stocking cloth X, and a welt opening mechanism (a first set of welt opening) including a cloth stretching pipe (not shown), a sliding pipe 123a, a large diameter pipe 125a, and the like. (Disposed on the upper stage of the mechanism).

As described above, two sets of the processing apparatus of the present invention are arranged, and two sets (FIG. 1) of the mounting arms 150 corresponding to the two sets are provided. The mounting of the fabric to the pair is performed separately and synchronously.

[0104]

As described above, according to the present invention, the first
A work process of picking up the stocking dough from the storage container by the pickup mechanism, a work process of placing the picked-up dough flat along the longitudinal direction of the flat passage, and a pick-up of the dough placed flat by the second pick-up mechanism Work step of controlling the posture of the picked dough via the detecting means and transporting it to the stock means, and opening the welt portion of the stocking dough and transferring it to the mounting arm. The work from the pick-up of the fabric to the delivery can be performed quickly and efficiently, and as a result, the work efficiency can be improved. Significant improvement can be achieved.

In the process of placing the stocking dough along the length of the flat passage, if two or more doughs are conveyed into the flat passage, they are placed flat.
Since the other fabrics are returned to the storage container while leaving one fabric, even if two or more fabrics are picked up, they are reliably sorted into one on this flat passage. It does not hinder the subsequent work process.

Further, the welt opening mechanism opens the welt of the stocking cloth, turns it completely over the sliding pipe, and temporarily clamps the turned welt. When the suction in the pipe is stopped, this turned-over portion is prevented from returning to its original position, and the open state is reliably maintained. As a result,
The work of transferring the opened welt portion to the mounting arm can be performed more reliably.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall structure of a processing apparatus according to the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a partial cross-sectional side view showing details of a stocking dough supply attitude control mechanism of the same.

FIG. 4 is a partial cross-sectional side view showing details of the above-described welt opening mechanism.

FIG. 5 is an enlarged side view showing a relationship between a sliding pipe and a large-diameter pipe.

FIG. 6 is a front view of the same.

FIG. 7 is a partial cross-sectional side view showing a state of picking up the cloth by the first pickup mechanism and a state of the cloth conveyed to the flat passage.

FIG. 8 shows the state of the cloth stretched on the flat passage and the second state.
FIG. 4 is a partial cross-sectional side view showing the state of picking up the fabric by the pickup mechanism of FIG.

FIG. 9 is a partial cross-sectional side view showing the relationship between the cloth with the welt portion first and the reversing means.

FIG. 10 is a partial cross-sectional side view showing a relationship between a cloth with a toe portion first and a reversing means.

FIG. 11 is a partial cross-sectional side view showing the inverted state of the cloth with the toes first.

FIG. 12 is a partial cross-sectional side view showing the relationship between the stock means and the cloth for the welt opening mechanism.

FIG. 13 is a partial cross-sectional side view showing a stretched state of the cloth in the welt opening mechanism.

FIG. 14 is a partial cross-sectional side view showing a state in which the cloth is being fed into the welt opening mechanism.

FIG. 15 is a partial cross-sectional side view showing an opening of a welt portion and a turned state.

FIG. 16 is a partial cross-sectional plan view showing a state in which the turned-up welt portion is delivered to the mounting arm and mounted on the holding member.

FIG. 17 is a partial cross-sectional side view showing a state corresponding to a defective welt opening.

[Explanation of symbols]

 X Stocking cloth T Toe part W Welt part L Leg Y Supply attitude control mechanism Z Welt part opening mechanism 50 Storage container 60 First pickup mechanism 70 Flat passage 80 Second pickup mechanism 90 Transport pipe 100 Inverting means 110 Stock means

Claims (7)

[Claims] 1. A method for continuously treating a tubular knitted stocking material having a toe portion at one end and a welt portion at the other end, wherein the stocking material randomly stored in a storage container is picked up. A step of conveying the stocking dough by a suction flow from the lower end into the flattening passage, and holding the first end of the conveyed stocking dough in the flattened passage, stretching the other end thereof to remove the stocking dough. In the process of lifting the stocking dough out of the flat passage while holding a predetermined portion of the stocking dough placed flat along the longitudinal direction of the flat passage, and lifting the stocking dough, Detects whether the lowest end of the stocking material to be lifted is the toe or the welt, and by that detection, it is sucked and conveyed through the transport pipe. Controlling the posture so that the welt portion of the stocking fabric comes first, and supplying the stocking fabric whose posture has been controlled to the welt portion opening mechanism, and the welt portion is formed by the action of the intake air flow in the pipe of the opening mechanism. Opening and transferring the opening onto the mounting arm, and these steps are performed synchronously and redundantly based on the phase difference between the respective working positions. A method for treating stocking dough, characterized in that: 2. In the step of laying stocking dough flat along the longitudinal direction of a flat passage, when two or more stocking doughs are conveyed into the flat passage, another stocking dough is left. 2. The stocking dough processing method according to claim 1, wherein the stocking dough is returned into the storage container through a discharge pipe. 3. In the step of opening the welt portion of the stocking dough, the welt portion is moved toward the opening end of the pipe while holding the leg portion of the stocking dough in a pipe on which the intake air flows by a pair of rotating rollers. 2. The method according to claim 1, wherein the welt is opened by completely turning the welt on the outer periphery of the opening end of the pipe by the action of the movement and the suction flow. 4. A welt portion turned over the outer periphery of the pipe opening end is detected by a plurality of sensors, and a plurality of portions of the welt portion turned up by this detection are temporarily held. The method for treating stocking dough according to claim 3, wherein 5. An apparatus for continuously processing a tubular knitted stocking material having a toe portion at one end and a welt portion at the other end, wherein a storage container for randomly storing a large number of stocking materials is provided. Means for supporting the first pickup mechanism on the container so as to be able to ascend and descend, and means for sucking and conveying the stocking cloth picked up from the storage container by the first pickup mechanism, and stretching the transferred stocking cloth in a straight state to flatten it; Is provided with a holding tool for temporarily holding one end of the stocking cloth, and a guide pipe branched and connected in the vertical direction. The guide pipe supports a second pickup mechanism that holds a predetermined portion of the stocking dough placed in the flat passage and lifts it upward to be able to move up and down. Detecting means for detecting whether the lowermost end of the lifted stocking material is a toe or a welt, and means for controlling the posture so that the welt is first depending on the detection result of the detecting means. And a welt opening mechanism for opening a welt portion of the stocking dough. 6. The stocking dough according to claim 5, wherein a discharge pipe for the stocking dough that communicates with the storage container is connected to the opposite side of the holding passage provided on one side of the flat passage. Processing equipment. 7. At a pipe opening end of the welt opening mechanism, a plurality of sensors for detecting the turned-up welt portion and a plurality of holding tools for temporarily holding are arranged at equal intervals around the circumference of the pipe. The stocking dough processing apparatus according to claim 5, characterized in that: