WO2011129535A2

WO2011129535A2 - Thread-feeding apparatus for a circular knitting machine

Info

Publication number: WO2011129535A2
Application number: PCT/KR2011/002123
Authority: WO
Inventors: 우상노; 성득현
Original assignee: Woo Sang No
Priority date: 2010-04-12
Filing date: 2011-03-29
Publication date: 2011-10-20
Also published as: WO2011129535A3; KR100989800B1

Abstract

The present invention relates to a thread-feeding apparatus for a circular knitting machine. The thread-feeding apparatus includes: a driving motor installed on a frame; a driving pulley connected to the driving motor; a plurality of electric pulleys connected to the driving pulley and corresponding to a plurality of skeins; an electric belt connected to the driving pulley and to the electric pulleys to enable the electric pulleys to interlock with one another when the driving pulley is rotated; power transmission units fixed to the frame and connected to the electric pulleys to receive rotating power from the electric pulleys; and take-up rollers installed on the power transmission unit to receive rotating power from the electric pulleys transmitted from the power transmission unit and to guide a thread supplied from the skeins toward a needle. The driving motor includes an inverter for adjusting the rotating speed thereof, wherein the inverter is controlled by a controller for adjusting the rotating speed of the driving motor. Thus, a worker can adjust the rotating speed of the driving motor while confirming numeric data through a display unit of the controller. As a result, a beginner can easily adjust a thread feeding rate, and the wear of the thread resulting from continuously contacting flanges of the take-up rollers can be prevented when the thread supplied from the skeins to the needle passes through the take-up rollers. When the take-up rollers are stopped, the thread does not unravel downward because the thread is no longer pulled downward. [Representative drawing] Figure 1.

Description

Thread feeder for circular knitting machine

The present invention relates to a thread feeding device for a circular knitting machine, and more particularly, it is possible to easily adjust the rotational speed of the winding roller, the thread supplied from the thread to the needle side is guided without damage, the winding of the winding roller when the winding roller is stopped. The present invention relates to a thread supply device for a circular knitting machine which is not loosened.

In general, a knitting machine refers to a textile machine that produces a loop by knitting a thread supplied to the knitting needle and twists the loop in horizontal and vertical directions to produce a knitted fabric of a desired shape.

This knitting machine is composed of a feeding mechanism for supplying thread to the knitting needle and a knitting mechanism for performing a knitting motion to form a loop from the yarn supplied from the feeding mechanism, and a warp knitting machine and a weft yarn for knitting the warp in the longitudinal direction. It is divided into an upper group organized by.

Among them, the circular knitting machine belongs to the category of the knitting machine, and the needles are arranged in a circular shape on the cylinder to continuously produce the annular fabric, and the annular fabric is finished to the garment through the normal cutting process.

The circular knitting machine is provided with a table, and a cylindrical cylinder is rotatably installed on the upper portion of the table. The cylinder is equipped with a plurality of needles at regular intervals. And the outer side of the cylinder is installed a cam box for guiding the movement of the needle. The needle is guided by the cam box and the fabric is made.

A guide cam is provided on the inner surface of the cam box, that is, the surface facing the outer surface of the cylinder, and the guide cam substantially guides the lifting of the needle. For this purpose, a cam groove having a predetermined inclination angle is formed in the guide cam. The butt provided to protrude to the needle needle is inserted into the cam groove is guided.

On the other hand, a plurality of thread is installed on the upper portion of the cylindrical cylinder and the cam box assembly, the thread is supplied to the needle side from the thread.

Here, the thread supplied from the thread to the needle side is via the take-up roller, which is positioned so that its center line is vertical.

Therefore, the yarn supplied in the downward direction from the thread is wound along the horizontal direction around the take-up roller and then supplied to the lower needle side. At this time, the thread wound on the lower take-up roller in the thread is continuously in contact with the upper flange of the take-up roller, the yarn wound on the take-up roller is continuously contacted to the lower flange of the take-up roller while being supplied to the lower needle side.

As such, the thread fed from the thread to the needle side is continuously worn in contact with the upper flange and the lower flange while passing through the take-up roller, thereby causing a problem in that the woven fabric is damaged.

In addition, the thread supply device for a circular knitting machine has a problem that the thread is released by its own weight while the winding roller is stopped. The yarn is fed from the upper side to the lower side, while wound around the take-up roller along the horizontal direction.

Therefore, even when the take-up roller is stopped, the yarn which is wound along the horizontal direction around the take-up roller and then supplied to the lower needle side is pulled downward by its own weight or other factors, causing the problem of unwinding around the take-up roller.

An object of the present invention for solving such a problem is to provide a thread feeding device for a circular knitting machine to easily adjust the rotational speed of the take-up roller.

Another object of the present invention is to provide a thread supplying device for a circular knitting machine so that the thread fed from the threaded needle to the needle side is guided without being damaged.

Still another object of the present invention is to provide a thread feeding device for a circular knitting machine, which prevents the thread wound on the winding roller when the winding roller stops.

Thread supply device for a circular knitting machine of the present invention for achieving the above object, the drive motor is installed in the frame; A drive pulley connected to the drive motor; A plurality of electric pulleys connected to the driving pulleys and provided to correspond to the plurality of threads, respectively; An electric belt connected to the driving pulley and the electric pulleys to interlock the electric pulleys when the driving pulley is rotated; A power transmission unit fixed to the frame and connected to the electric pulleys so that rotational power of the electric pulleys is transmitted; Installed in the power transmission unit, the rotational power of the electric pulley transmitted to the power transmission unit is transmitted, and includes winding rollers for guiding the thread supplied from the needles to the needle side; In the drive motor, the inverter is installed so as to adjust the rotational speed, it characterized in that the control the inverter by the controller to adjust the rotational speed of the drive motor.

Another feature of the thread supply device for a circular knitting machine of the present invention, the power transmission unit, the body is fixed to the frame, the upper end is fixed to the electric pulley is rotated together with the electric pulley shaft and the lower portion is located inside the body, and A first bearing for supporting the electric pulley shaft rotated by being coupled to the periphery of the electric pulley shaft, and a first bevel gear coupled to the lower end of the electric pulley shaft and positioned inside the body and rotating horizontally together with the electric pulley shaft; And a second bevel gear meshed with the first bevel gear and converting the rotational direction of the first bevel gear by 90 °, one end of which is coupled to the second bevel gear and rotated together with the center line of which is the same horizontal line as the centerline of the take-up roller. A winding shaft arranged in a horizontal direction so as to be positioned on the body, and a second bearing installed inside the body and coupled to the other end of the winding shaft to support rotation of the winding shaft. It is broken.

Another feature of the thread feeding device for a circular knitting machine of the present invention is that the winding roller is prevented from continuously contacting the flange of the winding roller when the thread supplied from the thread to the needle side passes through the winding roller, and is wound up when the winding roller is stopped. The center line of the take-up roller is installed on the horizontal line so that the thread wound on the roller is prevented from loosening, one side flange of the take-up roller is positioned parallel to the corresponding side of the body, and the circumference of the take-up roller is placed in the feeding direction of the yarn. Is located.

In the present invention as described above, the drive motor is provided with an inverter to adjust the rotational speed, it is possible to adjust the rotational speed of the drive motor by controlling the inverter with a controller. Therefore, the operator can adjust the rotational speed of the drive motor while checking the digitized data through the display unit of the controller, even beginners can easily adjust the actual supply speed.

The winding roller of this invention is provided so that the center line may be located on a horizontal line, and it is provided so that a thread may be wound up and down around the winding roller. Therefore, the problem that the thread supplied from the thread to the needle side is worn while continuously contacting the flanges of the take-up roller when passing through the take-up roller is prevented. The woven fabric is not damaged since the thread is not in constant contact with the flange of the take-up roller.

The winding roller of this invention is installed so that a thread may be wound up and down around the winding roller. Therefore, when the take-up roller is stopped, since the thread is no longer pulled downward, it is not released in the downward direction, thereby preventing the thread from being unnecessarily released from the take-up roller.

1 is a schematic front view showing a thread supply device for a circular knitting machine of the present invention;

2 is a schematic partial excerpt perspective view of the present invention

3 is a schematic front view of FIG. 1

4 is a schematic side view of FIG. 1

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a schematic front view showing a yarn feeding device for a circular knitting machine of the present invention, FIG. 2 is a schematic partial excerpt perspective view of the present invention, FIG. 3 is a schematic front view of FIG. 1, and FIG. 4 is a schematic side view of FIG. 1.

The yarn feeding device for a circular knitting machine of the present invention includes a driving motor 10, a driving pulley 12, an electric pulley 13, an electric belt 14, a power transmission unit 15, and a winding roller 25. .

The drive motor 10 is installed in the frame 1 to drive the drive pulley 12 and the electric pulley 13 to rotate the take-up roller 25 connected thereto.

The drive motor 10 is provided with an inverter 28 to adjust the rotational speed of the drive motor 10, the inverter 28 is connected to the controller 29. Therefore, the rotational speed of the driving motor 10 can be easily adjusted while checking the digitized data through the display unit of the controller 29.

The drive pulley 12 is connected to the motor shaft 11 of the drive motor 10, the rotational power of the drive motor 10 is transmitted.

The electric pulleys 13 are installed around the driving pulley 12 and provided with a plurality of threads corresponding to a plurality of thread (not shown), respectively, and are connected to the driving pulley 12 so that rotational power is transmitted therefrom.

The transmission belt 14 is connected to the driving pulley 12 and the driving pulleys 13 so that the plurality of driving pulleys 13 interlock when the driving pulley 12 rotates.

The power transmission units 15 are fixed to the frame 1 and connected to the electric pulleys 13 so that rotational power of the electric pulleys 13 is transmitted.

These power transmission units 15 are provided with a body 16 so that a plurality of parts are installed. A coupling groove 17 is formed at one side of the body 16 to be coupled to the frame 1, and the fixing screw 18 is fastened to the frame 1 and the body 16 to fix them.

The electric pulley shaft 19 is vertically installed in the body 16. The electric pulley shaft 19 is rotated with the upper end fixed to the electric pulley 13 and the lower part is located inside the body 16.

The first bearing 20 is installed inside the body. The first bearing 20 is coupled to the periphery of the electric pulley shaft 19 to support the electric pulley shaft 19 is rotated.

The first bevel gear 21 is coupled to the lower end of the electric pulley shaft 19. The first bevel gear 21 is positioned inside the body 16 and rotates in the horizontal direction together with the electric pulley shaft 19.

The second bevel gear 22 is engaged with the first bevel gear 21, and the power transmission direction of the first bevel gear 21 is changed by 90 degrees.

One end of the take-up shaft 23 is coupled to the second bevel gear 22. The winding shaft 23 is arranged in the horizontal direction such that its center line is located on the same horizontal line as the center line of the winding roller 25.

A second bearing 24 is installed inside the body 16, and the other end of the winding shaft 23 is coupled to the second bearing 24 to support rotation of the winding shaft 23.

The power transmission unit 15 is provided with a winding roller 25. The winding roller 25 is coupled to the winding shaft 23 of the power transmission unit 15 so that the rotational power of the electric pulley 13 transmitted to the power transmission unit 15 is transmitted, and from the needles to the needle (not shown) side. Guide the thread supplied.

Here, the take-up roller 25 is installed so that the center line of the take-up roller 25 is located on the horizontal line, and one side flange 27 of the take-up roller 25 is positioned to be parallel to the corresponding side of the body 16, so that the thread is It is wound up and down around the winding part 26 of the winding roller 25. As shown in FIG.

Therefore, the thread fed from the thread to the needle side is prevented from continuously contacting the flange 27 of the take-up roller 25 when passing through the take-up roller 25, and the take-up roller 25 when the take-up roller 25 stops. ) Is prevented from loosening.

The yarn feeding device for circular knitting machines of this invention of such a structure is operated as follows.

First, when the driving motor 10 is driven by operating the controller 29, the motor shaft 11 is rotated to rotate the driving pulley 12. When the driving pulley 12 is rotated, the electric belt 14 rotates to link the plurality of electric pulleys 13 connected thereto.

When the electric pulleys 13 are rotated, the electric pulley shafts 19 of the power transmission unit 15 are rotated, thereby rotating the first bevel gear 21 and the second bevel gear 22. When the second bevel gear 22 is rotated, the winding shaft 23 installed in the horizontal direction is rotated, and the winding roller 25 provided at the end of the winding shaft 23 is rotated.

This invention has the following advantages.

First, the drive motor 10 is provided with an inverter 28 to adjust the rotational speed, and the controller 29 to control the inverter 28 to adjust the rotational speed of the drive motor 10. .

Therefore, the operator can adjust the rotational speed of the drive motor 10 while checking the digitized data through the display unit of the controller 29, even beginners can easily adjust the actual supply speed.

Second, the take-up roller 25 of the present invention is installed so that the center line is located on the horizontal line and the thread is provided to be wound in the vertical direction around the take-up roller 25.

Therefore, the problem that the thread supplied from the thread to the needle side is worn while continuously contacting the flanges 27 of the take-up roller 25 when passing through the take-up roller 25. Since the thread is not in constant contact with the flange 27 of the winding roller 25, the woven fabric is not damaged.

Third, the winding roller 25 of the present invention is installed so that the yarn is wound up and down in the circumference of the winding roller 25.

Therefore, when the take-up roller 25 is stopped, since the thread is no longer pulled downward, it is not released in the downward direction, thereby preventing the thread from being unnecessarily released from the take-up roller 25.

[Description of the code]

10: drive motor 11: motor shaft

12: drive pulley 13: electric pulley

14: electric belt 15: power transmission unit

16 body 17 coupling groove

18: set screw 19: electric pulley shaft

20: first bearing 21: first bevel gear

22: second bevel gear 23: winding shaft

24: second bearing 25: winding roller

26: winding part 27: flange

28: inverter 29: controller

The winding roller of this invention is provided so that the center line may be located on a horizontal line, and it is provided so that a thread may be wound up and down around the winding roller. Therefore, the problem that the thread supplied from the thread to the needle side is worn while continuously contacting the flanges of the take-up roller when passing through the take-up roller is prevented. Since the thread is not in constant contact with the flange of the take-up roller, the woven fabric is not damaged.

The winding roller of this invention is installed so that a thread may be wound up and down around the winding roller. Therefore, when the take-up roller is stopped, since the thread is no longer pulled downward, it is not released in the downward direction, thereby preventing the thread from being unnecessarily released from the take-up roller. Therefore, these characteristics can be useful in industry.

Claims

A drive motor 10 installed in the frame 1;

A drive pulley 12 connected to the drive motor 10;

A plurality of electric pulleys 13 connected to the driving pulleys 12 and provided to correspond to the plurality of threads, respectively;

An electric belt 14 connected to the driving pulley 12 and the electric pulleys 13 to interlock the electric pulleys 13 when the driving pulley 12 rotates;

Power transmission units 15 fixed to the frame 1 and connected to the electric pulleys 13 to which rotational power of the electric pulleys 13 is transmitted;

Winding rollers 25 installed in the power transmission unit 15 to transmit the rotational power of the electric pulley 13 transmitted to the power transmission unit 15 and to guide the thread supplied from the thread to the needle side;

An electric pulley 13 is installed on the upper surface, a winding roller is installed on any one of four vertical surfaces of the circumference, and a power transmission unit is installed therein to transmit the rotational power of the electric pulley to the winding roller, and a frame on one side. The coupling groove is formed so as to be fitted, the body 16 includes a screw hole is formed on one side of the coupling groove so that the fixing screw is fastened so that the end of the fixing screw to press the frame inserted into the coupling groove;

In the drive motor 10,

An inverter 28 is installed to adjust the rotation speed thereof, and the controller 28 controls the inverter 28 to adjust the rotation speed of the drive motor 10;

The power transmission unit 15,

The body 16 fixed to the frame 1, the upper end is fixed to the electric pulley 13 is rotated with it and the electric pulley shaft 19, the lower part is located inside the body 16, and the inside of the body A first bearing 20 for supporting the electric pulley shaft 19 is installed and coupled to the periphery of the electric pulley shaft 19, and coupled to the lower end of the electric pulley shaft 19 and located inside the body 16 And the first bevel gear 21 and the first bevel gear 21 are rotated in the horizontal direction together with the electric pulley shaft 19 to convert the power transmission direction of the first bevel gear 21 by 90 degrees. The second bevel gear 22 and the winding shaft, one end of which is coupled to the second bevel gear 22 and rotated therewith, and is arranged in a horizontal direction so that its center line is positioned on the same horizontal line as the center line of the winding roller 25 ( 23 and a second bearing 24 installed inside the body 16 and coupled with the other end of the winding shaft 23 to support rotation of the winding shaft 23. Made;

The winding roller 25

When the thread supplied from the thread to the needle side passes through the take-up roller 25, it is prevented from continuously contacting the flange 27 of the take-up roller 25 and is wound up to the take-up roller 25 when the take-up roller 25 stops. In order to prevent loosening of the thread, the center line of the take-up roller 25 is installed so as to be positioned on the horizontal line, and one flange 27 of the take-up roller 25 is positioned to be parallel to the corresponding side of the body 16, so that the seal Thread feeding device for a circular knitting machine, characterized in that it is wound in the vertical direction around the winding roller (25).