JP2001355158A - Method and apparatus for turning stockings inside out and carrying out the same out of machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable sewing of a nail tip parts of stocking by accurately retaining the nail tip part of a stocking turned inside out and automatically transporting the stocking to a following process. SOLUTION: A stocking 12 having an open nail tip is knitted by a stocking knitting machine. A linking course part 44 and an excessively knitted yarn part 45 are knitted following the opening end of a nail tip 12a of the stocking 12. The nail tip part 12a of the stocking 12 is located and retained. The located and retained nail tip part 12a of the stocking is removed from a knitting needle 2 of a knitting needle cylinder 1. The stocking 12 removed from the knitting needle 2 is turned inside out in a fixed state of the nail tip part 12a. The stocking 12 turned inside out is carried out to the outside of a machine with the linking course part 44 as a guide part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carry-out method and a carry-out device for turning a sock knitted by a sock knitting machine with its toes open and turning it over to carry it out of the machine.

[0002]

2. Description of the Related Art Generally, a sock made by a sock knitting machine is knitted in a state where a toe portion is opened, and in the next step, a toe opening is sewn with a sewing machine or the like to obtain a finished product.

[0003] However, if the sock with the opened toe is sewn on the sewing machine in the next step, the sock is sewn with the toe being in contact with the back surface, so that the seam line for sewing the toe of the sock has a stitch line. Will be exposed to
It makes the appearance of the product uncomfortable.

[0004] The exposure of the seam line at the toe can be prevented by turning the sock upside down and sewing the toe so that the toe touches the surface, but the sock taken out of the sock knitting machine is turned over and the sock turned upside down. Performing sewing work manually by an operator is troublesome and difficult to increase work efficiency.

Accordingly, technical means have been developed in which a sock made by a sock knitting machine is turned over before being taken out of the sock knitting machine.

Japanese Patent Publication No. Sho 61-31225 discloses that in order to turn a sock with a toe open before being taken out of a sock knitting machine, a welt portion of a knitted fabric is sandwiched between a dial hub and a plate.
It describes a sock fabric reversing device that knits a double bag, cuts a yarn, and sucks and conveys the yarn downward in an inverted state.

Japanese Patent Application Laid-Open No. 1-246450 discloses that the outer cylinder and the inner element have a large diameter at the lower part, the inner element is divided into an upper part and a lower part, and when knitting is completed, the upper part is sandwiched by a sliding member and the lower part is lowered. Further, there is described a tensioning / turning-over device for a knitted product in a circular knitting machine for carrying out a knitted fabric that is inverted by air from a lower upper edge opening and carries out a knitted fabric.

Japanese Patent Application Laid-Open No. 4-15891 discloses a knitted fabric having a twist preventing cylinder which rotates synchronously with a cylinder and a conical nozzle which injects air downward at a lower portion of a dial, and pulls a knitted fabric downward with compressed air. A knitted fabric pull-out device is described.

[0009]

However, the means for turning over the sock before taking it out of the sock knitting machine is to turn over the sock whose toe is opened by holding it at the knitting start portion, and the accuracy of the holding position of the sock is also high. It is low and cannot be fed automatically to sew the toe in the next step, with the sock turned over.

[0010] The present invention has been made in view of the above points, and turns over a sock that can accurately hold the toe side of the sock and automatically convey it to a subsequent process to sew the toe. It is an object of the present invention to provide an unloading method and an unloading device for unloading the device outside the machine.

[0011]

According to the present invention, there is provided a carry-out device for turning a sock upside down and carrying it out of the machine, comprising a pin holding ring provided inside a knitting needle cylinder so as to rotate synchronously with the knitting needle cylinder and move up and down. At least two pins protruding from the upper surface of the pin holding ring at intervals in the circumferential direction, and a hole through which each of the pins is inserted is provided in the enlarged-diameter portion, and is disposed inside the holding ring so as to be vertically movable. A knitted fabric guide, sock removing means arranged above the knitting needle cylinder for holding the sock held by the pin of the pin holding ring and removing the sock from the pin holding ring, and vertically moving between the knitted fabric guide and the knitted sock. A sock turning means for freely turning over the sock held on the pin holding ring, accurately holding the toe side of the sock, automatically transporting the toe to the subsequent process, and sewing the toe portion Do To enable the Rukoto.

In the carrying out method of the present invention for turning a sock upside down and carrying it out of the machine, a sock knitting machine is used to knit a sock with a toe opened, and a knitted rossocourse portion and a waste thread portion are formed following the toe opening end of the sock. The toe of the sock is positioned and held, the toe of the sock thus positioned is removed from the knitting needle of the knitting needle cylinder, the sock removed from the knitting needle is turned over with the toe fixed, and the sock turned over is guided by the Rosso course. As a result, the toe side of the sock is accurately held, and the sock can be automatically conveyed to a subsequent process to sew the toe portion.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 1 denotes a knitting needle cylinder of a sock knitting machine. Grooves extending in the vertical direction are arranged on the outer peripheral surface of the knitting needle cylinder 1, and the arranged grooves are arranged from above. A knitting needle 2, an intermediate jack 3, and a knitting needle select jack 4 are arranged in this order. The intermediate jack 3 is moved up and down by the cam device 5, and the corresponding knitting needle 2 is moved.
To the active or inactive position.

A sinker bed 6 is provided above the knitting needle cylinder 1 so as to surround the knitting needle cylinder 1. A sinker 7 is provided on the sinker bet 6 so as to be slidable in the radial direction. The sinker 7 is operated by the cam means 8.

Above the knitting needle cylinder 1, a dial device 9 and a yarn supply device 10 are arranged. The dial device 9 is provided so as to rotate synchronously with the knitting needle cylinder 1. Knitting yarn 11 supplied from the yarn supply device 10
As a result, the sock 12 with the toe portion 12a opened is knitted.

On the other hand, the knitted sock 1
An unloading device 20 for turning over 2 and unloading it outside the apparatus is provided.

As shown in FIGS. 1 to 3, the unloading device 20 moves up and down through key means 22 in a vertically extending groove 21 provided on the inner surface of the knitting needle cylinder 1 and rotates synchronously with the knitting needle cylinder 1. Holding member 2 arranged to be
3, four pins 24 projecting from the upper surface of the pin holding member 23 at 90-degree intervals in the circumferential direction, and an actuating means 25 for moving the pin holding member 23 up and down.

As shown in FIGS. 1 and 3, a knitted fabric guide 26 for guiding the knitted socks 12 downward inside the knitting needle cylinder 1 is arranged inside the pin holding member 23. The knitted fabric guide 26 has a cylindrical portion 27 arranged concentrically with the pin holding member 23, and an annular portion 28 extending radially outward from the upper end of the cylindrical portion 27. The annular portion 28 has a hole 29 through which the pin 24 is inserted corresponding to each pin 24 of the pin holding member 23, and a groove 30 having an outer end opening adjacent to each hole 29.

In the embodiment shown in FIG. 3, holes 29 and one groove 30, and holes 29 and two grooves 30 on both sides thereof are alternately arranged in the annular portion 28. Part 2
The number of the eight grooves 30 may be all one or all two.

A pipe 31 for turning over the knitted socks 12 is disposed inside the knitted fabric guide 26. As shown in FIG. 1, the pipe 31 has a cylindrical shape as a whole, and is arranged between the knitted fabric guide 26 and the knitted sock 12 so as to be vertically movable. By the upward movement of the pipe 31, the sock 12 to which the toe 12a is fixed is turned over.

A sock holding means 32 is arranged above the knitting needle cylinder 1. This sock holding means 32
Has four sock holding parts 33. The sock holding means 32 is rotatably supported by an unloading means (not shown). Each sock holding portion 33 is arranged so as to surround the pin holding member 23 corresponding to each pin 24 of the pin holding member 23.

As shown in FIG. 1, each of the sock holding portions 33 includes a main body portion 34 and a plate body 36 having a pin 35 at a distal end portion.
And a knitted fabric presser 37 having a fork portion 37a at the tip and disposed above the plate body 36 and a knitted fabric release plate having a fork portion 38a at the tip and attached to the lower surface of the knitted fabric presser 37 38. The knitted fabric presser 37 has a base end pivotally attached to the main body 34 so as to be vertically swingable.
The base of the knitted fabric removing plate 38 is mounted in a groove formed on the lower surface of the knitted fabric retainer 37, and is urged by a compression spring 39.

The sock holding portion 33 corresponds to the groove 30 provided in the annular portion 28 of the knitted fabric guide 26, and the sock holding portion 33a having two protruding pins 35 shown in FIG.
The sock holding portion 33b has one protruding pin 35, 35 as shown in FIG.

As shown in FIG. 4, the sock holding portion 33a is operated by two air cylinders 50 and 51, and the plate 36, the knitted fabric removing plate 38 and the knitted fabric presser 37 are operated by the air cylinder 50. After moving inward in the radial direction, the toe opening end of the sock 12 supported by the knitted fabric guide 26 is inserted between the knitted fabric removing plate 38 and the knitted fabric retainer 37, and the knitted fabric removing plate 38 is knitted by the air cylinder 51. Ground presser 37
Swinging to the plate 36 side, holding the toe open end of the sock 12 supported by the knitted fabric guide 26 in cooperation with the pin 35 of the plate 36, and swinging to the opposite side to the plate 36. Knitted fabric removal plate 3
8. The sock 12 supported by the knitted fabric guide 26 by the
6 acts to remove it from the pin 35.

As shown in FIG. 5, the sock holding portion 33b is operated by three air cylinders 50, 51, and 52. The air cylinder 50 causes the plate 36, the knitted fabric removing plate 38, and the knitted fabric retainer. 37, the toe opening end of the sock 12 supported by the knitted fabric guide 26 is inserted between the knitted fabric removing plate 38 and the knitted fabric retainer 37,
The knitted fabric removing plate 38 and the knitted fabric presser 37 are swung toward the plate 36 by the air cylinder 51, and the toe opening end of the sock 12 supported by the knitted fabric guide 26 cooperates with the pin 35 of the plate 36. The sock 12 supported by the knitted fabric guide 26 by the knitted fabric removing plate 38 is disengaged from the pin 35 of the plate 36 by swinging to the opposite side of the plate 36 and the knitted fabric removing plate 38. The release plate 38 and the knitted fabric presser 37 are moved inward in the radial direction until they come into contact with the plate 36 of the sock holding portion 33b and the knitted fabric release plate 38 and the knitted fabric presser 37 at the opposing positions.

Further, sock gripping means 40 for gripping the rubber portion 12b of the inverted sock 12 so as to stand just above the knitting needle cylinder 1 and at a position on the way up the pipe 31.
Is arranged. The sock gripping means 40 is vertically movably attached to the outboard machine.

As shown in FIG. 6, the sock gripping means 40 opens and closes a pair of gripping parts 42, 42 having upper ends pivotally connected to a shaft 41 so as to be openable and closable. An operating air cylinder device (not shown). The sock holding means 40 is provided with the toe portion 1
The rubber portion 12a of the sock 12 which holds the 2a and is turned upside down by the turning pipe 31 is gripped. In this case, it is preferable to provide a notch at the upper end of the inside-out pipe 31 so as to allow the pair of grips 42 to pass therethrough.

Outside the sock knitting machine, a sock guide means 43 for feeding the sock 12 held by the sock holding means 32 to a sewing machine (not shown) arranged in the next step is arranged. As shown in FIG. 7, the sock guiding means 43 has a pair of guide members arranged at intervals such that the toe portion 12b of the sock 12 overlapped, preferably, the rosso course portion 44 passes.

Next, the operation will be described. First, the sock knitting machine is operated to knit socks 12 with the knitting yarn 11 supplied from the yarn supply device 10 in the order of the rubber portion 12b, the main body portion 12c, and the toe portion 12a. The sock 12 has an opening at the end of the toe 12a. Further, the operation of the sock knitting machine is continued, and the rosso course portion 44 and the waste thread portion 45 are knitted following the open end of the toe portion 12a of the sock 12. The rosso course portion 44 and the waste thread portion 45 are cut at a stage before the open end of the toe portion 12a is sewn with a sewing machine.

Next, when the pin holding member 23 in the knitting needle cylinder 1 is raised along the knitting needle cylinder 1 via the key means 22, the pin holding member 23 is lifted, and FIG.
As shown in the figure, the pin 24 provided on the pin holding member 23 penetrates the lube of the discarded thread portion 45 of the sock 12 through the hole 29 provided in the annular portion 28 of the knitted fabric guide 26.

Next, when the knitting needle cylinder 1 is rotated at the stage where the pin 24 of the pin holding member 23 pierces the discarded thread portion 45 of the sock 12, the pin holding member 23 and the knitting needle cylinder 1 rotate synchronously. The member 23 includes a pin 24
Is rotated together with the knitting needle cylinder 1 while piercing the waste thread portion 45 of the sock 12.

Subsequently, when the knitting needle 2 of the knitting needle cylinder 1 is raised and lowered, the knitting needle 2 of the knitting needle cylinder 1 is released from the loop of the waste thread 45 of the sock 12, and the loop of the waste thread 45 of the sock 12 becomes Is transferred to the pin 24 provided on the pin holding member 23. Pin 24 provided on pin holding member 23
Are arranged at 90-degree intervals in the circumferential direction, so that the socks 1
The two waste thread portions 45 are held at four equally spaced locations.

Next, as shown in FIG. 9, the thread supply device 10 and the dial device 9 are moved to the retreat position, and the pin holding member 23 and the knitted fabric guide 26 are simultaneously raised to a predetermined position.

Next, the sock holding portions 33a, 33b of the sock holding means 32, which are kept on standby around the outer periphery of the knitting needle cylinder 1, are
As shown in FIG. 10, the knitting needle cylinder 1 is moved toward the center. The knitted fabric guide 26 held by the pin holding member 23
The end of the waste thread 45 of the sock 12 supported by the knitted fabric is removed by the knitted fabric removing plate 38 and the knitted fabric retainer 37 of the sock holding portions 33a and 33b.
The pin 35 provided on the plate 36 is inserted into the groove 30 of the knitted fabric removing plate 38.

Next, when the sock holding portions 33a and 33b of the sock holding means 32 are raised, the sock holding portions 33a and 33b are raised.
The pin 35 provided on the hook 33 b pierces the loop of the waste thread 45 of the sock 12 held by the knitted fabric guide 26. Subsequently, the knitted fabric removing plate 38 and the knitted fabric presser 37 are swung to dispose the waste thread portion 4 of the sock 12 supported by the knitted fabric guide 26.
Hold 5. In this manner, the holding of the waste thread part 45 of the sock 12 prevents the waste thread part 45 of the sock 12 from rising.

Next, the pin holding member 23 is lowered as shown in FIG. 11, and the sock holding portions 33a and 33b are moved radially outward of the knitting needle cylinder 1.

Next, the knitted fabric guide 26 is lowered as shown in FIG. 12, and the inverted pipe 31 is raised. By raising the inside-out pipe 31, the sock 12 in which the waste thread portion 45 is held by the sock holding portion 33 is turned upside down with the waste thread portion 45 as a base point.

As shown in FIG. 13, the inverted sock 12 is placed on the sock gripping means 4 just above the knitting needle cylinder 1.
The rubber portion 12a is gripped by the pair of zero gripping portions 42, 42. When the inverted sock 12 is gripped by the sock gripping means 40, the flipping pipe 31 is lowered. This completes the sock change of the sock 12.

Next, the left and right sock holding portions 33a, 33a of the sock holding means 32 are operated in a direction away from each other, and the front and rear sock holding portions 33b, 33b are advanced in a direction approaching and in contact with each other. Thereby, the inverted sock 12
Are flattened together at the center.

The sock 12 is flattened at the center.
Is conveyed in the direction of the sock guide means 43 disposed adjacent to the sock guide section 43 of the sock 12.
Between the pair of guide members. As a result, the sock 12 is carried out of the machine in a state where the inverted toe portion is positioned, and is delivered to the sewing machine for the toe in a later process.

[0041]

As described above, according to the present invention, it is possible to accurately hold the inverted toe side of the sock and automatically transport the sock to a subsequent process to sew the toe portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a sock knitting machine incorporating a sock unloading device according to the present invention.

FIG. 2 is a diagram showing a knitting first stage of the sock knitting machine.

FIG. 3 is an exploded perspective view of the sock carrying device according to the present invention.

FIG. 4 is a diagram showing one sock holding portion of the sock holding means.

FIG. 5 is a diagram showing another sock holding portion of the sock holding means.

FIG. 6 is a view showing a sock holding means of the sock carrying device according to the present invention.

FIG. 7 is a diagram showing a step of inserting a rosso course portion of a sock of a sock carrying device according to the present invention into a sock guiding means.

FIG. 8 is a view showing a stage in which a pin of a pin holding member pierces a discarded thread part of a sock.

FIG. 9 is a view showing a stage in which the pin holding member and the knitted fabric guide are simultaneously raised.

FIG. 10 is a view showing a stage in which a pin provided in a sock holding portion of the sock holding means pierces a discarded thread portion of the sock.

FIG. 11 is a diagram showing a stage in which the sock holding unit has moved outward in the radial direction.

FIG. 12 is a diagram showing a step of turning over a sock.

FIG. 13 is a view showing a stage in which the sock gripping is completed.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 knitting needle cylinder 2 knitting needle 12 sock 12 a sock toe 20 carry-out device 23 pin holding member 24 pin 26 knitted fabric guide 31 reverse pipe 32 sock holding means 33 sock holding part 35 pin 40 sock gripping means 43 sock guiding means 44 rosso course

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuhiko Tamaki 1451 Jizo-do, Daisui-cho, Nishikanbara-gun, Niigata F-term in the Niigata Plant of Nagata Seiki Co., Ltd. 4L054 AA01 BD02 LA19

Claims (4)

[Claims] 1. A pin holding ring provided inside a knitting needle cylinder so as to rotate and move up and down synchronously with the knitting needle cylinder, and at least two pins protruding from an upper surface of the pin holding ring at intervals in a circumferential direction. And a knitted fabric guide having a hole through which the pins are inserted in the enlarged diameter portion and vertically arranged inside the holding ring, and held on the pins of the pin holding ring arranged above the knitting needle cylinder Sock removing means for removing the sock from the pin holding ring, and sock turning means provided between the knitted fabric guide and the knitted sock so as to be vertically movable to turn the sock held by the pin holding ring upside down. A carry-out device for turning a sock upside down and carrying it out of the machine. 2. The unloading device according to claim 1, further comprising gripping means for gripping the rubber portion side of the inverted sock. 3. The unloading device according to claim 2, further comprising a guide device for passing the toe portion of the inverted sock held by the sock removing means. 4. A sock in which a toe is opened by a sock knitting machine, a rossocourse portion and a waste thread portion are knitted following an opening end of a toe of the sock, the toe of the sock is positioned and held, and the sock is positioned and held. Remove the toe from the knitting needle of the knitting needle cylinder, turn the sock removed from the knitting needle upside down with the toe fixed, and carry out the inverted sock outside the machine using the Rosso course as a guide. Out method to take off the equipment.