JPS5856685B2 - Stocking direct extension control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a straight-stretch feed-out control device for stockings, and in particular, a cylindrical suction tube that also serves as a holder for the fabric is covered with a cylindrical fabric, which is a semi-finished stocking, inside out, and the toe of the stocking is sewn using a sewing machine. In the toe closer (Patent Application Publication No. 9949 of 1977), the stocking with its toe sewn is sucked into the cylindrical suction tube through the toe, and then the cylindrical suction tube is closed. After pneumatically transporting the stockings to the delivery device through a shaped suction tube, the stockings are collected in a collection box or the like in a straight line and uniformly aligned with the welt end (opposite the toe) as a reference. This invention relates to a direct-stretching stocking delivery control device.

During the stocking manufacturing process, the stockings are held in a relatively straight position during transport to other manufacturing processes, or during processing operations such as sewing and finishing, to facilitate the worker's next task. It is preferable that the materials are bundled into various bundles and processed.

For this purpose, the suction force of a suction device is applied to pneumatically transport the stockings into an openable and closable container through a supply tube from its toe, and the stockings are pneumatically transported from the toe of said container through the supply tube to the far end of said container or When the toe of the stocking reaches the supply pipe side, some mechanical means, such as a capture member such as a reciprocating needle operated by an air cylinder, is provided to temporarily hold the toe of the stocking. A device that controls the straight stretching of stockings that have become lumpy due to suction in the longitudinal direction along a horizontal passage in the container using reverse airflow (Patent Application Publication No. 2, 1971)
No. 8997) is already well known.

In recent years, so-called pantyhose made from stockings made of synthetic fiber yarn have been gaining popularity as a practical product.

In the production of pantyhose, an automatic pantyhose sewing machine (Patent Application Publication No. 8734 of 1976) was developed that sewed together a pair of tube-knitted stocking fabrics to form the hip area. It has been widely put into practical use.

This automatic pantyhose sewing machine has extremely high productivity because various tasks are automated, and therefore it has greatly contributed to the rationalization of pantyhose manufacturing factories.

In the stocking toe/closing process, which is a pre-process of the pantyhose manufacturing process, in order to meet the high productivity of the automatic pantyhose sewing machine, the stocking toe/closing process is carried out in a cycle of, for example, 2 seconds or less. A highly efficient toe closer (Patent Application Publication No. 152360 of 1972) that completes the work has been developed and put into practical use.

Therefore, the stockings that have been tow-closed with this toe closer must be straight-stretched in a time cycle that is equal to or shorter than the toe-closing operation described above.

However, in the above-mentioned conventional device for controlling the straight stretching of stockings, the working process involves first transporting the stockings by air through the supply pipe into the container, temporarily holding the toe part of the stockings with a capture member, and then using reverse airflow to control the stockings. The work process includes the process of controlling the straight extension of the stockings in the longitudinal direction along the horizontal passage inside the container, and the process of opening and closing the container to send the stockings whose straight extension has been controlled downward to the outside of the container. Since the configuration is such that it is performed at the end of each step, it takes a long time (approximately 2.2 to 2.5 seconds) for one cycle of straight stretching control of one stocking, and as a result, the straight stretching control of the stocking is Not only will it be incomplete, but it will also cause problems in the toe closing work process of the above-mentioned highly efficient toe closer.

In addition, in the process of processing the stockings, for example, sewing pantyhose, the worker first grasps the welt end of the stocking and starts the next operation.
Stockings that are stacked in a straight line in the toe-closing process are stacked in a uniform manner with the elbow end as a reference to improve work efficiency and to improve worker efficiency. This is strongly required for operation control, but the conventional device described above is configured to use a capture member to hold the toe of the stocking that has been pneumatically transported into the container, so it is possible to control straight stretching using reverse airflow. The ends of the welt portions of the stockings produced are not necessarily aligned under certain conditions and are often stacked in an irregular manner, and therefore do not satisfy the above requirements.

The present invention is an apparatus which eliminates each of the above-mentioned drawbacks of the conventional technology, that is, it is capable of processing stockings so that the welt edges of stockings are uniformly aligned with a capacity sufficient to cope with the above-mentioned high-productivity toe closer. An object of the present invention is to provide a direct-stretching feed-out control device for stockings.

That is, the present invention provides a supply pipe with a means for temporarily storing the toe part of the stockings transported by the suction air flow in a lump, and a stocking delivery device is connected to the supply pipe, and the stockings connected to the supply pipe are provided with a supply pipe. An injection nozzle that induces an air flow along the horizontal passage configured in the delivery device is provided opposite the supply pipe and the end of the delivery device, and at the end of the delivery device, the stockings conveyed by the air flow from the supply pipe are It is characterized by providing means for temporarily holding the welt portion.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a stocking material H whose toe portion is sewn along the latitude line 4 with the above-mentioned toe closer.

As shown in the figure, this stocking material H has a stocking body (leg part) 1, a welt part 2 which is generally braided with rubber thread, and a part slightly thicker than the body 1 at the end opposite to the welt part. The toe portion 3 is braided with high-count thread.

In the present invention, the stockings are stacked in a straight line in a uniform manner with the welt portion 2 of the stockings H as a reference.

Next, in FIGS. 2 and 3, the stocking H delivery device 1
0 consists of a fixed semi-cylinder 11 and an opening/closing semi-cylinder 12, each of which is a long cylinder divided into two parts. are fixedly supported by the respective lower cylindrical portions of left and right supports 14 a > 14 b fixed on the machine base 13 of the tow closer, and one opening/closing semi-cylinder 12 is connected to this fixed semi-cylinder 11 as will be described later. It is configured so that it can be joined and separated from the

A hole 15a is formed on the above-mentioned delivery device 10, and its both ends are bored in the left and right supports 14a 514b.

A rotating shaft 16 that is rotatably fitted inside the rotating shaft 15b is arranged in parallel with the delivery device 10, and a pair of hinges 17 are disposed at appropriate locations on the rotating shaft 16. One half-bending body 17a of the hinge 17 is loosely fitted onto the rotating shaft 16 to fix its base to the stationary semi-cylinder 11 side, and the other semi-bending body 17b of the hinge 17 is fitted onto the rotating shaft 16. and its base is fixed to the opening/closing semi-cylinder 12 side.

In addition, one semi-bending body 17 is fixed to the fixed semi-cylinder 11.
A and a torsion spring 19 having the same name as the rotating shaft are installed between opposing sides of the collar 18 fitted on the rotating shaft 16, and the rotating shaft 16 is held in constant tension as shown in FIG. It is biased clockwise, so that the opening/closing semi-cylinder 12 is always maintained in a joined state (solid line state in FIG. 3) to the fixed semi-cylinder 11.

A bar 20 that can be opened and closed is fixed to one end of the rotating shaft 16 on the side of the support 14a, and the tip of the piston 22 of the air cylinder 21 is attached to the free end of the lever 20 using a pin 23.
When the air cylinder 21 is actuated, the piston 22 of the cylinder 21 rotates the rotating shaft 16 by a certain angle clockwise (FIG. 3) against the biasing force of the torsion spring 19 via the opening/closing lever 20. As a result, the opening/closing semi-cylindrical cylinder 12 is rotated about the pivot shaft 16 to bring the delivery device 10 into an open state (as shown by the chain line in FIG. 3).

Further, the air cylinder 21 is rotatably supported by a pin 25 on a bracket 24 fixed on the base 13 of the tow closer.

As shown in FIG. 2, a connecting pipe 30 having an air exhaust hole 30a is provided on the left support 14a side, and is arranged in series with the connecting pipe with a slight gap 31 provided therebetween. The supply pipes 32 of the stockings H are arranged in communication with the delivery device 10, and a shielding plate 33 is disposed within the gap 31, which normally blocks the connection pipe 30 and the supply pipe 32. Set and configure.

As shown in FIG. 4, this shielding plate 33 has a fan-shaped shape, and has a communication hole 33a formed at one lower end thereof, and a shaft 33 of a rotary solenoid 35 supported by a bracket 34 at its upper end base. The shaft 3 of the solenoid 35 is fixed to the
6, the shielding plate 33 is rotated by a certain angle in the direction of the arrow in FIG.
is disposed within the gap 31 between the communication pipe 30 and the supply pipe 32, so that the two pipes 30 and 32 are brought into communication.

As shown in FIG. 2, the supply pipe 32 for stockings H consists of a T-shaped horizontal pipe 32a and a vertical pipe 32b. H is a storage tube 32c that is temporarily stored and on standby, and its end is connected to the suction tube 40 via a blocking plate 37 of a stocking having a large number of ventilation holes 37a.

Further, one end of the extension of the vertical pipe 32b of the supply pipe 32 is connected to, for example, one end of the cylindrical suction pipe of the above-mentioned toe closer, so that the stocking H whose toe portion has been sewn has a suction effect, which will be described later. Accordingly, air is transported from the toe portion through the cylindrical suction pipe into the pipe.

The suction pipe 40 has its extended end connected to a suction section of a suction device 42 via an air switching valve 41.

The switching valve 41 normally shuts off the intake flow of the suction device 42, but the operation of the rotary solenoid 43 causes the switching valve 41 to open and direct the intake flow of the suction device into the pipe, that is, the tow. The cylindrical suction pipe of the closer is connected to the vertical pipe 32b of the supply pipe 32 (at this time, the supply pipe 32
and the connecting pipe 30 are blocked by a shielding plate 33.

), the action is applied to the open end of the cylindrical suction tube.

Further, an injection nozzle 46 is disposed in a curved portion at one end of the suction pipe 40 to emit a compressed air flow in the direction of the arrow, that is, toward the horizontal passage of the delivery device 10 by actuation of the solenoid valve 45. has been done.

As shown in FIGS. 2 and 5, the right support 14b disposed opposite to the left support 14a has a hole 47 bored in the lower cylindrical portion of the support 14b. A rotation shaft 48 is rotatably mounted perpendicular to the hole 47, and the end of this shaft 48 is connected to a shaft 50 of a rotary lean lens 49 fixed to the support 14b.

Furthermore, an L-shaped presser 51 with its tip facing downward is fixed to the shaft 48 within the hole 47 of the support 14b.

When the rotary lean solenoid 49 is actuated, the holding tool 51 is moved downward by the shaft 50 of the solenoid 49 to the position indicated by the chain line in FIG.

In addition, in the delivery device 10 at the front position of the support body 14b, there are a long hole 60a and a large number of ventilation holes 6 on the entire surface from the center to the lower part so as not to impede the descending movement of the presser 51.
A restraining plate 60 of an egg-shaped stocking H provided with 0b is fixed to the stationary semicylindrical cylinder 11 side so that its upper end is inclined to the left and its lower end is inclined toward the right side support member 14b.

Furthermore, an injection nozzle 61 is disposed in the hole 47 of the support 14b and is oriented in the horizontal passage direction of the delivery device 10 so as to face the injection nozzle 46 disposed on the suction pipe 40.

The injection nozzle 61 emits a compressed air flow in the direction of the arrow by the operation of the solenoid valve 62.

Next, the operation process of the apparatus of the present invention will be explained with reference to the time chart shown in FIG. 6, and the operation of each apparatus will be explained in conjunction with the explanation.

In addition, the air cylinder 21° rotary solenoid 35, 43, 49 and solenoid valve 4 arranged in the device of the present invention
5 and 62 are not particularly shown, but each device is controlled as shown in the time chart of FIG. 6 based on commands of control signals from the above-mentioned toe closer. It is now possible to do so.

In addition, the time chart shown in FIG. 6 shows a block (A) showing each operating mode of the rotary solenoids 43 and 35 and the solenoid valve 45, and a block (A) showing each operating mode of the rotary solenoid 49, the solenoid valve 62, and the air cylinder 21. The block (b) shown in FIG.

That is, in the toe closer described above, the toe portion 3
One end of the cylindrical suction tube, which is covered with the sewn stocking H inside out, is connected to one end of the vertical tube 32b of the supply tube 32 of the device of the present invention. First, the rotary solenoid 43 of block (a) and the rotary solenoid 49 of block (b) are operated in synchronization.

Below, the operation mode is shown as block (a) and block (b).
I will explain it separately.

Block (A) The operation of the rotary solenoid 43 is controlled by its switching valve 4.
1 is opened, and the suction device 4, which had been in a shut-off state until then, is opened.
2 is made to act on the inside of the suction pipe 40, and the blocking plate 3
70 vertical pipe 3 of the supply pipe 32 through the ventilation hole 37a
2b to the open end of a cylindrical suction tube (not shown) of the toe closer.

At this time, for example, by actively rewinding the stocking H on the cylindrical suction tube by the action of an unwinding roller (not shown) that rotates in contact with the cylindrical suction tube,
The stockings H are sequentially sucked into the cylindrical suction tube while being turned inside out from the sewn toe portion 3, and the suctioned stockings H pass through the vertical tube 32b to the rear storage tube 32c side of the horizontal tube 32a. By being pneumatically transported, the stockings block the blocking plate 37 in the storage tube 32c.
The tow portion 3 is compressed (lump-like) (Fig. 7A).
), and is temporarily stored and on standby at that position.

Thereafter, the rotary solenoid 43 is deactivated based on the command of the control signal, and another rotary solenoid 35 is activated approximately in synchronization with this.

When the rotary solenoid 43 is inoperative, the switching valve 41
By returning the supply pipe 3 to the cut-off state,
The suction air flow of the suction device 42 that was acting on the inside of the suction device 2 is stopped.

Another rotary solenoid 35 is operated by rotating the shielding plate 33 in the direction of the arrow in FIG.
By disposing this in the gap 31, the supply pipe 32 and the connecting pipe 30, which had been in a disconnected state, are brought into communication.

When the supply pipe 32 and the connecting pipe 30 are brought into communication, the electromagnetic valve 45 is then operated to cause the compressed air flow sent from a compressed air supply source (not shown) to be discharged from the injection nozzle 46.

The compressed air flow discharged from the injection nozzle 46 passes through the supply pipe 32, the connecting pipe 30, and the delivery device 10, and further passes through the small ventilation hole 60b of the stop plate 60 and passes through the hole 4 of the support 14b.
The stockings H, which are to be discharged from the injection nozzle 46 and therefore are stored in the storage pipe 32c of the supply pipe 32 in a compressed state with the toe portion 3 first, are stored in the storage pipe 32c of the supply pipe 32.
Due to the flow of compressed air released from the welt part 2, it is transported by air,
The stocking H comes into contact with the stop plate 60 disposed at the right end of the delivery device 10, becomes compressed from the welt portion 2 (FIG. 7B), and comes to rest.

Thereafter, the rotary solenoid 35 and the electromagnetic valve 45 are deactivated, and the supply pipe 32 and the connecting pipe 30 are returned to the disconnected state by the shielding plate 33, and the compressed air discharged from the injection nozzle 46 is stop the flow.

Block (B) The rotary solenoid 49 is operated by lowering the presser 51 from the solid line position in FIG. The end of the welt part 2 of the stocking H, which is in contact with the plate 60 and is in a compressed state (Fig. 1 B) from its welt part 2 (Fig. 1 B), is pressed and clamped (Fig. T C).
).

Immediately thereafter, the electromagnetic valve 62 is operated to cause the compressed air flow sent from a compressed air supply source (not shown) to be discharged from the injection nozzle 61.

The compressed air flow discharged from the injection nozzle 61 flows from the right side to the left side (FIG. 2) of the delivery device 10 through the small ventilation hole 60b of the stop plate 80, and then flows through the exhaust hole 3 of the connecting pipe 30.
The air flow is discharged from 0a.

(At this time, the connecting pipe 30 and the supply pipe 32 are in a blocked state by the shielding plate 33.

) Therefore, the stockings H whose welt portion 2 ends are pressed and clamped by the presser 51 are exposed to the injection nozzle 61.
Delivery device 10 by a flow of compressed air stream emitted from
(Fig. 7D).

Thereafter, the solenoid valve 62 becomes inactive, stopping the flow of compressed air discharged from the injection nozzle 61, and the rotary solenoid 49 also becomes inactive, and the presser 51
is returned to the position shown by the solid line in Fig. 2, and the press clamping of the stocking H is released.

In conjunction with the rotary solenoid 49 being inactivated, the air cylinder 21 is then activated.

Due to the operation of this air cylinder 21, the cylinder 21
The delivery device 10 is rotated by the piston 22 of the rotating shaft 16 by a certain angle via the opening/closing lever 20.
The opening/closing semi-cylindrical cylinder 12 is rotated to the position indicated by the chain line in FIG.
The stockings H, which are stretched in a straight line with the end as a reference, are orderly lowered and accumulated in a fixed position such as a collection box (not shown) below the delivery device 10 (FIG. 7E).

After that, when the air cylinder 21 becomes inoperable,
The opening/closing semi-cylinder 12 is joined to the fixed semi-cylinder 11 side by the restoring force of a torsion spring 19 attached to the rotating shaft 16, and the delivery device 10 is closed.

As explained above, the present invention operates in the working process of block (a), that is, the stocking H is transferred from the cylindrical suction pipe of the toe closer into the supply pipe 32 of the device of the present invention, with its toe portion 3 first. The process of pneumatically transporting the stockings, and then pneumatically transporting the stockings from the supply pipe into the delivery device 10 with the welt part 2 of the stocking first; and the work process of the block (b), that is, the stockings are pneumatically transported into the delivery device 10. The stocking H is controlled to be straightly stretched with the welt portion 2 as a reference, and the stocking that has been controlled to be straightly stretched is sent to the delivery device 10.
The work process of lowering the block to the outside is overlapped, and the work process of the block (B) is carried out by the rotary solenoid 43 of the block (A).
Everything is completed between activation and deactivation.

Therefore, the working time of one cycle of the present invention is the working time of the flock (a), that is, the working time of one cycle is completed in 1.7 seconds as shown in the time chart of Fig. 6. It becomes possible to control and accumulate stockings in a straight line with a capacity sufficient to correspond to a high-efficiency toe closer.

Furthermore, in the present invention, when controlling the stocking H to stretch straightly, the two ends of the welt part of the stocking are pressed and clamped to perform the straight stretching control with the welt part as a reference. The stockings H will be stacked with the welt portions 2 uniformly aligned.

The device of the present invention described above is most effective and effective when used as an auxiliary device to the above-mentioned high-efficiency toe closer, but it can also be used with other machines, such as a sock inspection machine, a sock inspection machine, etc. Of course, it can also be used in socks-related machines such as knitting machines.

[Brief explanation of drawings]

FIG. 1 is a plan view showing stocking material having its toe sewn together with a toe closer. FIG. 2 is a partially sectional front view showing the entire device of the present invention. FIG. 3 is a view taken along the line I-A in FIG. 2. FIG. 4 is a view taken along the BB arrow in FIG. FIG. 5 is a view taken along the line C--C in FIG. 2. FIG. 6 is a time chart showing the operating mode of the device of the present invention. FIGS. 7A to 7E are schematic diagrams showing the working mode of the stockings in the embodiment of the device of the present invention. In these figures, H... stocking material, 2... welt part, 3... toe part,
10... - Delivery device, 11... Fixed semi-cylinder, 12... Opening/closing semi-cylinder, 32... Supply pipe, 40... Suction Pipe, 46... injection nozzle, 51... presser, 61... injection nozzle.

Claims (1)

[Claims] 1. A supply pipe is provided with means for temporarily storing the toe part of the stocking transported by the suction air flow in a lump, and a stocking delivery device is connected to the supply pipe,
An injection nozzle for inducing an air flow along a horizontal passage formed in the stocking delivery device connected to the supply pipe is provided opposite to the end of the supply pipe and the delivery device, and an injection nozzle is provided at the end of the delivery device from the supply pipe 1. A direct-stretch feed-out control device for stockings, comprising means for temporarily clamping a welt portion of stockings conveyed by an air flow.