KR101213182B1 - Thread twisting device for socks making machine and system therefor - Google Patents

Abstract

PURPOSE: A doubling and twisting apparatus which directly supplies ply yarn to a sock knitting machine is provided to manufacture socks using a small amount of grey yarn. CONSTITUTION: A sock knitting system comprises: a normal knitting machine with a cylinder which knits socks and a shaft(50) which rotates the cylinder; and a doubling and twisting apparatus(111). The sock knitting machine comprises: a main motor(105) which rotates the shaft; a controller(101) which stores command for controlling rotation frequency of the main motor; and an inverter(103) which controls rotation frequency. The doubling and twisting apparatus comprises: a frame; a sub motor(109) which is mounted at the frame and rotates; and a rotation pipe. [Reference numerals] (101) Controller; (103) Inverter; (105) Main motor; (107) Submotor driving unit; (109) Submotor; (111) Doubling and twisting apparatus; (50) Shaft

Description

Thread twisting device for socks making machine and system therefor}

The present invention relates to a sock knitting system comprising a hosiery knitting machine for knitting a twisted yarn and a non-twisted yarn to receive a twisted yarn from a twisting device and a twisting device.

Socks must have elastic force for wearing, so that twisted yarns and non-twisted yarns should be knitted together, and in order to supply such twisted yarns to the hosiery knitting machine, After winding the bobbin, the twisted yarn was fed from the twisted yarn bobbin to the sock knitting machine.

1 is an exploded perspective view showing the configuration of a general knitting machine disclosed in Patent No. 10-1066633 (name of the invention: a knitting method using a cylindrical knitting machine), and FIG. 2 is an assembled perspective view of FIG.

As shown in FIG. 1, a cylinder 10 having a cylindrical shape in which dozens of insertion slits 12 are formed in a vertical direction on an outer circumferential surface thereof, an outer sinker ring 20 and an inner sinker coupled to an upper side of the cylinder 10. Ring 30, the needle 40 and the needle jack 42 is inserted into the insertion slit 12 of the cylinder 10 is coupled to the structure capable of sliding movement, and coupled to the inner side of the cylinder (10) 10, a base plate 60 coupled to the lower end of the shaft 50, a lower end of the needle jack 42, and a shaft 50 rotated by a main motor (not shown) to rotate the And a first pivoting cam 72, a second pivoting cam 74 and a third pivoting cam 76 coupled to the base plate 60 so as to be in contact. In addition, the needle 40 and the needle jack are provided on the outer surface of the cylinder 10 so that the needle 40 and the needle jack 42 are not detached from the cylinder 10 and the sliding movement is possible along the insertion slit 12. A spring 14 that closely adheres the 42 to the cylinder 10 is further coupled.

 FIG. 2 is a perspective view illustrating the operation of FIG. 1. The first thread is hung along the circumference of the inner sinker ring 30, and then the cylinder 10 is rotated counterclockwise. The needle is coupled to the outer surface of the cylinder 10. The jack 42 is reciprocated in the vertical direction as it is in contact with the upper surface of the dedicated cams (72 ~ 76), the needle 40 coupled to contact with the upper end of the needle jack 42 also reciprocates in the vertical direction By movement, the needle 40 is threaded between the outer sinker ring 20 and the inner sinker ring 30 to the lower part of the inner thread to the first thread of the inner sinker ring 30, so that the outer thread and the inner thread are three-dimensional socks, wrist protection band, hair Knitted fabrics such as bands are knitted.

In the process of manufacturing a sock using such a device, the cylinder 10 moves one side of the knitted fabric downward after completing one rotation in a counterclockwise direction, but performs the next operation, but in order to manufacture a thickly knitted heel portion (10) by knitting counterclockwise to rotate the counterclockwise, and counterclockwise to rotate counterclockwise to knit so as to knit thicker than the ankle. As such, there are moments in which the main motor must be continuously rotated in the same direction in order to knit the socks, and moments in which the main motor is rotated at low speed while alternating forward and reverse rotations are generally present. When the sock knitting machine is supplied, the tension of the twisted yarn is uneven because the rotation speed of the cylinder is variable, and the twisted yarn is often cut or twisted.

FIG. 3 is a block diagram of Patent Publication No. 10-2011-0082746 (name of the yarn supplying device) for winding up a twisted yarn in a conventional bobbin.

As shown in FIG. 3, the false twisted yarn bobbin 2 is installed inside the drum 1, and the outer side of the false twisted yarn bobbin 2 is filled with a foamable resin ball 11 made of styrofoam, and the false twisted bobbin ( Non-twisted bobbins (3) are installed on both sides of 2) so that the false-twisted yarn and the non-twisted yarn are joined together.

When a tension change occurs in the false twisted yarn in the yarn supply device having such a configuration, the tension change is buffered by the expandable resin material ball 11 provided on the outside of the bobbin 2, so that twisting of the twisted yarn becomes relatively uniform.

However, the coalescence method of such a configuration can be said to be variable with the deformation of the expandable resin material 11, so that the tension of the false twisted yarn cannot be controlled qualitatively, and the large drum 1 and the non-twisted bobbins are separated separately. The size of the equipment is increased because it must be installed in the space of.

In addition, when the speed change of the cylinder 10 occurs largely as in the case of supplying the twisted yarn to the sock knitting machine by the device configured by the above method, the tension change can no longer be absorbed by the foamed resin ball 11. It becomes impossible.

In addition, when the twisted yarn is wound on the bobbin by a separate knitting device and a separate knitting device, it is very difficult to test the color, texture, etc. by knitting the socks by the specific twisted yarn.

In addition, when the twisted yarn is wound around the bobbin using a separate jointer, a small amount of thread is discarded because the jointer cannot be operated with a small amount of thread.

The present invention is to provide an apparatus for supplying directly to the socks knitting machine to form a twisted yarn when the rotational speed of the cylinder in the sock knitting machine is very variable.

Another object of the present invention is to supply a twisted yarn directly to the hosiery knitting machine to be able to test the combination, texture, etc. of the socks color produced by the twisted yarn.

In addition, another object of the present invention is to provide a sock knitting machine by joining a small amount of yarn so that a small amount of yarn can also be used in the production of socks.

Solution to Problem The present invention for solving the above problems is a conventional sock knitting machine having a cylinder and a shaft for rotating the socks, and the non-twisted and the non-twisted yarn subjected to the tension by the sock knitting machine A sock knitting system comprising a joining device for joining a twisted yarn to be traversed and supplied to the sock knitting machine, the sock knitting machine comprising: a main motor for rotating the shaft; A controller that stores a command to control the rotation speed of the main motor; Including an inverter for receiving the command to control the rotational speed of the main motor, The coalescing apparatus frame; A sub-motor installed in the frame and rotating at a rotational speed proportional to the rotational speed of the main motor; A rotatable tube installed to be rotatable with respect to the frame, the non-twisted yarn passing through therein, and a false twisted bobbin in which the false twisted yarn is wound on an outer circumferential surface thereof to be rotatably driven by the sub-motor, and the rotary tube rotates. When the false twisted yarn is rounded and coalesced around the non-twisted yarn.

In the present invention, the frame is provided with a support horizontal to the ground, the sub-motor is provided with a pulley protruding to the upper portion of the support, the outer peripheral surface of the rotary tube bushing driven by the belt wound around the pulley Further comprising, the bushing is preferably supported by rotation by a bearing installed in the support.

In addition, in the present invention, the rotary tube is rotated vertically installed on the support, the non-twisted bobbin wound the non-twisted yarn is preferably installed in the lower portion of the support.

In the present invention, it is preferable that the false twist bobbin seating portion is installed on the outer circumferential surface of the rotary tube, the false twist bobbin is mounted on the false twist yarn bobbin seating portion.

In addition, in the present invention, the rotation speed of the main motor is controlled by the output frequency of the inverter, the sub-motor is preferably rotated in proportion to the output frequency of the inverter.

Another solution of the present invention is a joint apparatus for directly supplying twisted yarn to a sock knitting machine: the frequency of the inverter for varying the number of revolutions of the main motor for driving the sock knitting machine is input is rotated in proportion to the frequency of the inverter The sub-motor is provided, and the twisted yarn is formed by winding the false twisted yarn around the non-twisted yarn in proportion to the rotational speed of the submotor.

According to the present invention having the above-mentioned problems and solving means, it is easy to test because the socks can be manufactured even with a small amount of yarn by directly supplying the twisted yarn to the sock knitting machine, and a small amount of yarn can be appropriately utilized.

In addition, the jointing device can be installed in a small space, which can increase space utilization and reduce manufacturing costs.

In addition, since the rotation speed of the main motor is linked to the sub-motor, the supply of the twisted yarn is proportional to the knitting speed of the sock, and unlike other machines, there is no separate tension control device, thereby eliminating defects such as yarn cutting.

In addition, since the control of the sub-motor utilizes the frequency of the inverter for controlling the rotational speed of the main motor, a separate rotational speed control device is unnecessary, so that the coalescing device can be configured at low cost.

1 is a perspective view showing the configuration of a general knitting machine disclosed in Patent No. 10-1066633 (name of the invention: knitting method using a cylindrical knitting machine).
2 is an assembled perspective view of FIG. 1.
FIG. 3 is a block diagram of Patent Publication No. 10-2011-0082746 (name of the yarn supplying device) for winding up a twisted yarn in a conventional bobbin.
4 is a circuit block diagram illustrating the overall configuration of an embodiment of the present invention.
5 is a configuration diagram of a coalescing apparatus driven by a sub-motor in one embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

4 is a circuit block diagram illustrating the overall configuration of an embodiment of the present invention.

In one embodiment of the present invention, the device for supplying the socks letter and the non-twisted yarn to supply to the socks letter is referred to as a coalescing device, a combination of the coalescing device and the socks knitting machine is called a sock knitting system. In the sock knitting machine, a shaft 50 for rotating the cylinder 10 shown in FIG. 1 is installed, a main motor 105 for rotating the shaft 50 is installed, and a rotation operation of the main motor 105 is controlled. The controller 101 is installed. The controller 101 is programmed and inputs commands for controlling the rotational speed and the rotational direction that the main motor 105 should perform during the knitting of the main motor 105. These commands are input to the inverter over time. And the number of revolutions of the main motor 105 is varied in the inverter 103.

Inverter 103 is composed of a variable voltage, a variable frequency method (VVVF) to change the rotational speed of the main motor 105, the VVVF method is relatively high when the frequency is increased to increase the rotational speed of the motor Since the current flows small and the torque is small, in order to compensate for this, the frequency is varied while maintaining the uniform torque by increasing the voltage value so that the rotation speed is variable.

In addition, in the sock knitting system in which the jointing device is installed, the voltage, current, and frequency output from the inverter 103 are input to the sub-motor driving unit 107, and the sub-motor driving unit is proportional to the rotational speed of the main motor, that is, the inverter 103. The rotation speed of the sub-motor 109 is controlled so as to be proportional to the output frequency of the sub-motor 109 so that the false twisted yarn is uniformly joined around the non-twisted yarn by varying the number of rotation turns per unit time that is wound around the non-twisted yarn.

In the embodiment shown in FIG. 4, the rotation control of the sub-motor 109 detects a frequency output from the inverter 103, and controls rotation speed in proportion to the detected frequency, but is not limited thereto. . The command output from the controller 101 to the inverter 103 is equally input to the submotor driving unit 107, and the voltage current output from the submotor driving unit 107 to the submotor 109 is rotated according to the command input. It can be configured to change the number, in addition to the various motor control schemes can be implemented.

5 is a configuration diagram of a coalescing apparatus driven by a sub-motor in one embodiment of the present invention.

The coalescence apparatus 100 illustrated in FIG. 5 includes a frame 130 having a horizontal support on the ground and a sub-motor 109 installed in the vertical direction so that the pulley 110 protrudes upward from the frame 130. The rotary tube 141 protrudes upward through the support of the frame 130, the bushing 143 attached to the outer circumferential surface of the rotary tube 141, and the bushing 143 to rotate with respect to the frame 130. A bearing 131 installed on the support to support rotation, and a false twist bobbin seating portion 145 attached to the outer circumferential surface of the rotary tube 141 while being upper part of the bushing 143 and integrally rotating with the rotary tube 141; The non-twisted bobbin 121 installed in the lower portion of the frame 130 to supply the non-twisted yarn 123 to the inside of the rotary tube 141, and the rotation of the pulley 110 to the bushing 143 to transfer the bushing 143. ) Is rotated with the belt 133 and the false twisted bobbin seating portion 145 rotates together with the rotary tube 141 to rotate the rotary tube 141. The twisted yarn bobbin 147 which traverses around the non-twisted yarn 123 discharged upward through the unit and supplies the twisted yarn 148 joined together, and the roller 149 for guiding the direction of the twisted yarn stretched by the sock knitting machine. Is made of.

Hereinafter will be described the operation of the present invention.

The number of revolutions of the main motor 105 is varied according to the portion where the socks are being knitted by the sock knitting machine, and the number of revolutions of the main motor 105 is varied according to the command of the controller 101. The command of the controller 101 is input to the inverter 103 to vary the output frequency of the inverter. As the frequency output from the inverter is changed, the rotation speed of the main motor 105 is changed.

When the rotation speed of the main motor 105 is changed as described above, the sub-motor driving unit 107 also detects the frequency change output from the inverter 103, and the sub-motor driving unit 107 is connected to the output frequency of the inverter 103. The sub motor 109 is rotated in proportion.

The non-twisted yarn 123 is supplied to the sock knitting machine by a tensile force proportional to the rotational speed of the main motor 105 of the sock knitting machine. In addition, the non-twisted yarn 123 is unwound by the tension force by the sock knitting machine in the state wound on the non-twisted bobbin 121, passed through the inside of the rotary tube 141 and then joined with the false twist yarn through the roller 149 through the socks piece It will be directed towards the loom. In this case, the length of the non-twisted yarn 123 passing through the rotary tube 141 per unit time is proportional to the tensile force imparted from the sock knitting machine, and the tensile force is ultimately proportional to the rotational speed of the main motor 105. If the rotational speed of) is large, the rotational speed of the main motor 105 becomes small, and thus the length per unit time drawn out is proportional to the rotational speed of the main motor 105.

At this time, if the winding speed of the twisted yarn 148 wound around the non-twisted yarn 123 is uniform, when the main motor 105 rotates quickly, the wound twisted yarn 148 and the next wound twisted yarn 148 are rotated. Pitch is increased, and when the main motor 105 rotates slowly, the pitch of the false twist yarn 148 decreases, causing a sharp phenomenon to occur.

However, in the present invention, the supply of the false twist yarn 148 also changes the rotational speed of the sub-motor 109 in proportion to the rotational speed of the main motor 105, so that the main motor 105 rotates rapidly or rotates the same pitch. To maintain the spacing.

The bushing 148 is rotatably supported by a bearing 131 installed in a horizontally supported support of the frame 130, and a rotating tube 141 is installed inside the bushing 148 and a belt 133. When the sub-motor 109 is rotated by the pulley 110 by the bushing 148 is rotated, the rotary tube 141 is eventually rotated. When the rotary tube 141 is rotated as described above, the twisted yarn bobbin seating part 145 is rotated, and the twisted yarn bobbin 147 is rotated so that the twisted yarn 148 is wound while rotating around the non-twisted yarn 123. To be united.

In the present invention, the false twisted bobbin 147 and the non-twisted bobbin 121 can be arranged up and down on the basis of the frame 130, so that the size of the coalescing apparatus can be reduced, and the non-twisted yarn simply passes through the rotary tube. While the rotational speed is controlled to control the supply of false twisted yarn, there is no need for a separate twist tensioner to eliminate defective factors such as disconnection of twisted yarn.

In addition, the present invention can utilize a small amount of twisted yarn non-twisted yarn because the fed twisted yarn is directly supplied from the twisting device to the hosiery knitting machine, unlike the conventional method of supplying the twisted yarn wound on the bobbin to the sock knitting machine. Test can be done to test the color easily.

10: cylinder 50: shaft
101: controller 105: main motor
103: inverter 107: sub-motor drive unit
109: sub-motor 123: non-burning
130: frame 133: belt
143: bushing 141: rotating tube
145: combustible bobbin seat
149: roller

Claims (6)

A conventional sock knitting machine comprising a cylinder in which a sock is knitted and a shaft for rotating the cylinder; In a sock knitting system consisting of a joining device:
The sock knitting machine
A main motor for rotating the shaft;
A controller that stores a command to control the rotation speed of the main motor;
Including an inverter for receiving the command to control the rotational speed of the main motor,
The coalescing device
frame;
A sub-motor installed in the frame and rotating at a rotational speed proportional to the rotational speed of the main motor;
It is installed so as to be rotatable with respect to the frame, the non-twisted yarn is passed therein and a false twist bobbin wound around the false twister is installed on the outer circumference includes a rotary tube driven by the sub-motor,
And the false twist yarn is circulated around the non-twist yarn and coalesced when the rotary tube is rotated. The method of claim 1, wherein the frame has a support horizontal to the ground, the sub-motor has a pulley protruding to the upper portion of the support,
The outer circumferential surface of the rotary tube further comprises a bushing that is rotated by a belt wound around the pulley, the bushing is characterized in that the bushing is rotatably supported by a bearing installed in the support. The hosiery knitting system of claim 2, wherein the rotary tube is vertically installed and rotated, and the non-twisted bobbin wound around the non-twisted yarn is installed under the support. The socks knitting system of claim 3, wherein a false twist bobbin seat is installed on an outer circumferential surface of the rotary tube, and the false twist bobbin is seated on the false twist bobbin seat. The sock knitting system according to any one of claims 1 to 3, wherein the rotation speed of the main motor is controlled by the output frequency of the inverter, and the sub-motor is rotated in proportion to the output frequency of the inverter. . In the jointing device which supplies the twisted yarn directly to the sock knitting machine:
A sub-motor that receives a frequency of an inverter that varies the rotational speed of the main motor driving the sock knitting machine, and which is rotated in proportion to the frequency of the inverter; A coalescing device, characterized in that to form a twisted yarn.

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