A circular knitting machine with adaptive yarn feeding function and an operating method thereof

Abstract

The present invention discloses a circular knitting machine with an adaptive yarn feeding function and an operating method thereof, which relates to the field of knitting technology and includes a circular knitting machine body; a mounting frame; a magnetic docking member; a synchronous yarn pressing member arranged on a hexagonal rotating rod; a touch rotating rod; and a position adjustment touch unit. The present invention provides a synchronous yarn pressing member, rotates a second screw rod to cause a first wire pressing roller and a second wire pressing roller to clamp the yarn, and adjusts the rotation speed of a servo motor to prevent the first wire pressing roller and the second wire pressing roller from affecting the yarn feeding speed. When the movable contact piece is separated from the positioning contact piece, the solenoid valve is powered off and closed. At this time, the internal space of the piston cylinder located below the piston rod is sealed, thereby stopping the second wire pressing roller from rotating. At the same time, the first wire pressing roller is also unable to rotate. In this way, the yarn can be clamped, thereby facilitating the subsequent search for thread ends and the wiring of the yarn.

Description

Technical Field

[0001] The invention relates to the technical field of knitting, in particular to a circular knitting machine with an adaptive yarn feeding function and an operating method thereof. Background Art

[0002] A circular knitting machine is a type of textile equipment that uses knitting needles to hook yarns of various raw materials and varieties into loops, and then connects them into knitted fabrics through stringing. Existing circular knitting machines are usually equipped with a pay-off stand and a yarn feeder. The pay-off stand is used to unwind the bobbin yarn, and the unwound yarn is sent into the weaving mechanism through the yarn feeder for weaving.

[0003] If the yarn breaks during the conveying process, both ends of the yarn will be separated from the yarn feeder. When re-threading the yarn, one end of the yarn needs to be found and connected, which will increase the downtime and affect the working efficiency of the circular knitting machine. Summary of the Invention

[0004] The purpose of the present invention is to provide a circular knitting machine with an adaptive yarn feeding function and an operating method thereof in order to solve the problem that both ends of the yarn are easily separated from the yarn feeder when the yarn breaks.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a circular knitting machine with an adaptive yarn feeding function, comprising a circular knitting machine body;

[0006] The mounting frame is arranged on the top of the large circular knitting machine body;

[0007] The yarn feeder is installed on the top of the mounting frame, and the yarn feeder consists of a yarn feeder housing, a yarn clamping piece, a guide wire piece, and a winding wheel;

[0008] A controller is arranged on the top of the yarn feeder housing;

[0009] A side plate is installed on one side of the yarn feeder housing, and a servo motor is installed on the top of one side of the side plate;

[0010] An L-shaped support frame is installed on a side of the yarn feeder away from the side plate, and one side of the L-shaped support frame is provided with a hexagonal rotating rod located below the side plate;

[0011] A magnetic docking piece is connected to the output end of the servo motor and is used to connect the servo motor to the hexagonal rotating rod;

[0012] Synchronous yarn pressing piece, set on the hexagonal rotating rod, used to clamp the broken yarn;

[0013] Touch the rotating rod and rotate it, which is connected to the yarn feeder housing and is located on one side of the side plate;

[0014] The position adjustment touch control is arranged on the touch rotating rod and is used to control the magnetic docking parts and the synchronous yarn pressing parts.

[0015] As a further solution of the present invention: the position adjustment touch component includes:

[0016] The rotating connecting bin is installed on the outside of one end of the touching rotating rod;

[0017] A worm wheel is mounted on the outer wall of the rotary connecting bin, and a worm screw meshing with the worm wheel is rotatably connected to one side of the yarn feeder housing;

[0018] A positioning contact piece is installed on the inner wall of the large circular knitting machine body, and a movable contact piece located on one side of the positioning contact piece is slidably connected to the inner side of the rotating connecting bin;

[0019] An arc spring is provided on the side of the movable contact piece away from the positioning contact piece, and the movable contact piece is connected to the inner wall of the rotating connecting bin through the arc spring;

[0020] A first screw rod is rotatably connected to the outer wall of the rotating connecting bin and is located above the touch rotating rod, and a movable block is sleeved on the first screw rod;

[0021] A locking hole is provided on the movable contact piece, and a locking pin extending into the locking hole is provided on a side of the movable block close to the rotating connecting bin.

[0022] As a further solution of the present invention: locking pins are provided on both sides of the movable block, and locking holes are provided on the positioning contact piece and the movable contact piece.

[0023] As a further solution of the present invention: the synchronous yarn pressing member includes:

[0024] A T-shaped positioning plate is provided on one side of the L-shaped support frame, and the top of the T-shaped positioning plate is rotatably connected to the second wire pressing roller via a bearing;

[0025] A third transmission bevel gear is rotatably connected to one side of the T-shaped positioning plate and is located outside the hexagonal rotating rod;

[0026] a fourth transmission bevel gear, disposed at one end of the second wire pressing roller close to the hexagonal rotating rod, the fourth transmission bevel gear being meshed with the third transmission bevel gear;

[0027] The first transmission bevel gear is movably connected to the hexagonal rotating rod and is located above the third transmission bevel gear. The top of the first transmission bevel gear is provided with an L-shaped movable plate located outside the hexagonal rotating rod;

[0028] a first wire pressing roller rotatably connected to one side of the L-shaped movable plate and located above the second wire pressing roller, wherein one end of the first wire pressing roller is provided with a second transmission bevel gear meshing with the first transmission bevel gear;

[0029] The sleeve block is arranged on a side of the L-shaped movable plate away from the first wire pressing roller, one side of the L-shaped support frame is rotatably connected to the second screw rod, and the sleeve block is sleeved on the second screw rod;

[0030] A disc is provided at an end of the second wire pressing roller away from the fourth transmission bevel gear, and an eccentric bayonet is installed on the disc;

[0031] A T-shaped push plate is provided on one side of the disc, wherein a guide groove is provided on the T-shaped push plate, and the T-shaped push plate is slidably connected to the eccentric bayonet through the guide groove;

[0032] The piston cylinder is arranged at the bottom of the L-shaped support frame, and a solenoid valve is provided at the bottom of the piston cylinder;

[0033] The piston rod is installed at the bottom of the T-shaped push plate and extends to the inner side of the piston cylinder.

[0034] As a further solution of the present invention: the positioning contact piece is electrically connected to an external power supply through a wire, and the movable contact piece is electrically connected to a solenoid valve through a wire.

[0035] As a further solution of the present invention: a vent hole is provided on one side of the top end of the piston cylinder.

[0036] As a further solution of the present invention: the magnetic docking piece includes:

[0037] A telescopic rod is connected to the output end of the servo motor, and an electromagnet is provided at the bottom end of the telescopic rod;

[0038] A swivel, rotatably connected to the outer side of the electromagnet;

[0039] a return spring, disposed at the bottom of the side plate and connected to the swivel;

[0040] The iron block is set on the top of the hexagonal rotating rod.

[0041] As a further solution of the present invention: the electromagnet is electrically connected to the movable contact piece through a wire.

[0042] As a further solution of the present invention: the return spring is located outside the telescopic rod, and the bottom diameter of the electromagnet is smaller than the diameter of the iron block.

[0043] The present invention also discloses an operating method of a circular knitting machine with an adaptive yarn feeding function, which adopts the above-mentioned circular knitting machine with an adaptive yarn feeding function, comprising the following steps:

[0044] S1: First, the yarn is connected so that the yarn passes through the yarn feeder and is connected to the knitting device in the circular knitting machine body;

[0045] S2: The yarn is fed through the operation of the yarn feeder, and the speed of the servo motor is adjusted by the controller, and the touch rod is fitted with the yarn;

[0046] S3: During the yarn feeding process, the synchronous yarn pressing member is used to limit the yarn position during the feeding process. When the yarn breaks, the touch rotating rod swings due to the loss of yarn cover, so that the position adjustment touch control controls the magnetic docking member and the synchronous yarn pressing member to stop working, thereby clamping the yarn;

[0047] S4: After that, the staff can quickly find the yarn ends based on the clamped yarn and connect the yarn. Beneficial effects

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. A synchronous yarn pressing member is provided, and the first wire pressing roller and the second wire pressing roller are rotated to clamp the yarn. The servo motor speed is adjusted to prevent the first wire pressing roller and the second wire pressing roller from affecting the yarn conveying speed. When the movable contact piece is separated from the positioning contact piece, the solenoid valve is powered off and closed. At this time, the internal space of the piston cylinder below the piston rod will be in a sealed state. At this time, the air under the piston rod cannot be discharged from the piston cylinder, which makes the piston rod unable to move, thereby stopping the rotation of the second wire pressing roller. At the same time, since the first wire pressing roller and the second wire pressing roller are connected by a hexagonal rotating rod, the first wire pressing roller cannot rotate at this time, so that the yarn can be clamped, thereby facilitating the subsequent search for thread ends and wiring of the yarn.

[0050] 2. By setting a magnetic docking piece, when the movable contact piece and the positioning contact piece are in contact with each other, the electromagnet is energized to generate suction on the iron block, thereby making the electromagnet and the iron block fit together, and at the same time the reset spring and the telescopic rod are extended. When the servo motor is operating, the telescopic rod is driven to rotate. During the rotation of the telescopic rod, the electromagnet drives the iron block to rotate, thereby rotating the hexagonal rotating rod. When the movable contact piece is separated from the positioning contact piece, the electromagnet is powered off and loses its magnetic force. At this time, the electromagnet will recover under the action of the elastic restoring force of the reset spring, thereby disconnecting the servo motor and the hexagonal rotating rod, thereby realizing the rapid stop of the first conductor pressure roller and the second conductor pressure roller when the yarn is broken, thereby preventing the yarn from escaping from between the first conductor pressure roller and the second conductor pressure roller;

[0051] 3. By setting the position adjustment touch control, the yarn feeder is used to deliver the yarn by threading. After threading is completed, the worm is rotated, and the rotating warehouse is rotated synchronously with the worm wheel through the rotation of the worm. At this time, the movable contact piece is fixed by the locking pin, so that the movable contact piece cannot be separated from the positioning contact piece under the action of the elastic restoring force of the arc spring. When one side of the touch rod is in contact with the yarn, the worm is stopped and the first screw is dialed, so that the movable block drives the locking pin to move, thereby separating the locking pin from the locking hole. At this time, the movable contact piece loses its limit, but due to The obstruction of the yarn causes the touch rotating rod to be unable to swing, so the servo motor can be connected to the hexagonal rotating rod through the magnetic docking piece. At this time, the yarn can be transported through the cooperation of the magnetic docking piece and the synchronous yarn pressing piece. When the yarn breaks, the yarn will lose the limit on the touch rotating rod. At this time, the touch rotating rod will swing under the action of the elastic restoring force of the arc spring, so that the movable contact piece and the positioning contact piece can be separated. At this time, the synchronous yarn pressing piece and the magnetic docking piece stop operating, so as to control the operating timing of the synchronous yarn pressing piece and the magnetic docking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0053] Figure 2 It is a structural schematic diagram of the yarn feeder of the present invention;

[0054] Figure 3 This is a schematic diagram of the connection between the touch rotating rod and the rotating connecting bin of the present invention;

[0055] Figure 4 This is a schematic diagram of the internal structure of the rotary connected warehouse of the present invention;

[0056] Figure 5 This is a structural schematic diagram of the synchronous yarn pressing member of the present invention;

[0057] Figure 6 Schematic diagram of the connection between the piston cylinder and the disc of the present invention;

[0058] Figure 7 This is a schematic diagram of the connection between the eccentric bayonet and the piston rod of the present invention;

[0059] Figure 8 It is a structural schematic diagram of the magnetic docking piece of the present invention.

[0060] In the figure: 1. Circular knitting machine body; 2. Mounting frame; 3. Yarn feeder; 301. Yarn feeder housing; 302. Yarn clamp; 303. Wire guide; 304. Winding wheel; 4. Touch rod; 5. L-shaped support frame; 6. Side plate; 7. Servo motor; 8. Controller; 9. Worm; 10. Rotating connecting bin; 11. Worm gear; 12. First lead screw; 13. Movable contact piece; 14. Locking hole; 15. Arc spring; 16. Positioning contact piece; 17. Movable block; 18. Locking pin; 19. Hexagonal rod; 20. First Wire pressing roller; 21. Second wire pressing roller; 22. L-shaped movable plate; 23. First transmission bevel gear; 24. Bushing block; 25. Second screw rod; 26. Second transmission bevel gear; 27. Third transmission bevel gear; 28. T-shaped positioning plate; 29. ​​Fourth transmission bevel gear; 30. Piston cylinder; 31. Disc; 32. Eccentric bayonet; 33. Guide groove; 34. T-shaped push plate; 35. Piston rod; 36. Solenoid valve; 37. Telescopic rod; 38. Return spring; 39. Swivel; 40. Electromagnet; 41. Iron block. DETAILED DESCRIPTION

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure. Example 1

[0063] See also Figures 1 to 8 In an embodiment of the present invention, a circular knitting machine with an adaptive yarn feeding function includes a circular knitting machine body 1;

[0064] The mounting frame 2 is arranged on the top of the knitting machine body 1;

[0065] The yarn feeder 3 is mounted on the top of the mounting frame 2 and consists of a yarn feeder housing 301, a yarn clamping piece 302, a guide wire piece 303, and a winding wheel 304;

[0066] The controller 8 is arranged on the top of the yarn feeder housing 301;

[0067] A side plate 6 is mounted on one side of the yarn feeder housing 301, and a servo motor 7 is mounted on the top of one side of the side plate 6;

[0068] An L-shaped support frame 5 is mounted on a side of the yarn feeder 3 away from the side plate 6. A hexagonal rotating rod 19 is provided on one side of the L-shaped support frame 5 and is located below the side plate 6.

[0069] A magnetic docking piece is connected to the output end of the servo motor 7 and is used to perform transmission connection between the servo motor 7 and the hexagonal rotating rod 19;

[0070] Synchronous yarn pressing member, provided on the hexagonal rotating rod 19, for clamping the broken yarn;

[0071] Touch the rotating rod 4, which is connected to the yarn feeder housing 301 and is located on one side of the side plate 6;

[0072] The position adjustment touch control is arranged on the touch rotating rod 4 and is used to control the magnetic docking part and the synchronous yarn pressing part.

[0073] In this embodiment: the yarn is first connected to the wiring board so that the yarn passes through the yarn feeder 3 and is connected to the knitting equipment in the large circular machine body 1. The yarn is fed by the operation of the yarn feeder 3. At the same time, the speed of the servo motor 7 is adjusted by the controller 8. At the same time, the touch rotating rod 4 is in contact with the yarn. During the feeding process, the yarn in the conveying process is limited by the synchronous yarn pressing part. When the wire breaks, the touch rotating rod 4 swings due to the loss of yarn obstruction, so that the position adjustment touch part controls the magnetic docking part and the synchronous yarn pressing part to stop operating, thereby clamping the yarn. After that, the staff can quickly find the yarn end according to the clamped yarn. Example 2

[0074] Please refer to Figure 2 、 Figure 3 、 Figure 4 , the position adjustment touch components include:

[0075] The rotating connecting bin 10 is installed on the outer side of one end of the touch rotating rod 4;

[0076] The worm wheel 11 is mounted on the outer wall of the rotary connecting bin 10, and a worm 9 meshing with the worm wheel 11 is rotatably connected to one side of the yarn feeder housing 301;

[0077] The positioning contact piece 16 is installed on the inner wall of the large circular knitting machine body 1, and the inner side of the rotating connecting bin 10 is slidably connected to the movable contact piece 13 located on one side of the positioning contact piece 16;

[0078] The arc spring 15 is provided on the side of the movable contact piece 13 away from the positioning contact piece 16. The movable contact piece 13 is connected to the inner wall of the rotating connecting chamber 10 through the arc spring 15.

[0079] The first screw rod 12 is rotatably connected to the outer wall of the rotating connecting bin 10 and is located above the contact rotating rod 4. The first screw rod 12 is sleeved with a movable block 17;

[0080] The locking hole 14 is formed on the movable contact piece 13 , and a locking pin 18 extending into the interior of the locking hole 14 is provided on a side of the movable block 17 close to the rotating connecting bin 10 .

[0081] Among them, locking pins 18 are provided on both sides of the movable block 17 , and locking holes 14 are opened on the positioning contact piece 16 and the movable contact piece 13 .

[0082] In this embodiment, the yarn feeder 3 is used to deliver the yarn. After the threading is completed, the worm 9 is rotated, and the rotation of the worm 9 causes the rotating warehouse 10 to rotate synchronously with the worm wheel 11. At this time, due to the fixation of the movable contact piece 13 by the locking pin 18, the movable contact piece 13 cannot be separated from the positioning contact piece 16 under the action of the elastic restoring force of the arc spring 15. When one side of the touching rotating rod 4 is in contact with the yarn, the worm 9 is stopped and the first screw rod 12 is dialed, so that the movable block 17 drives the locking pin 18 to move, thereby separating the locking pin 18 from the locking hole 14, and the movable contact piece 13 is lost. The limit is set, but the touch rotating rod 4 cannot swing due to the obstruction of the yarn, so the servo motor 7 can be connected to the hexagonal rotating rod 19 through the magnetic docking piece. At this time, the yarn can be transported by cooperating with the magnetic docking piece and the synchronous yarn pressing piece. When the yarn breaks, the yarn will lose the limit on the touch rotating rod 4. At this time, the touch rotating rod 4 will swing under the elastic restoring force of the arc spring 15, so that the movable contact piece 13 can be separated from the positioning contact piece 16. At this time, the synchronous yarn pressing piece and the magnetic docking piece stop working, so as to control the operation timing of the synchronous yarn pressing piece and the magnetic docking piece. Example 3

[0083] Please refer to Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 , the synchronous yarn pressing parts include:

[0084] A T-shaped positioning plate 28 is provided on one side of the L-shaped support frame 5, and the top of the T-shaped positioning plate 28 is rotatably connected to the second wire pressing roller 21 via a bearing;

[0085] The third transmission bevel gear 27 is rotatably connected to one side of the T-shaped positioning plate 28 and is located outside the hexagonal rotating rod 19;

[0086] The fourth transmission bevel gear 29 is provided at one end of the second wire pressing roller 21 close to the hexagonal rotating rod 19, and the fourth transmission bevel gear 29 is meshed with the third transmission bevel gear 27;

[0087] The first transmission bevel gear 23 is movably sleeved on the hexagonal rotating rod 19 and is located above the third transmission bevel gear 27. The top of the first transmission bevel gear 23 is provided with an L-shaped movable plate 22 located outside the hexagonal rotating rod 19;

[0088] The first conductor pressing roller 20 is rotatably connected to one side of the L-shaped movable plate 22 and is located above the second conductor pressing roller 21. One end of the first conductor pressing roller 20 is provided with a second transmission bevel gear 26 that meshes with the first transmission bevel gear 23.

[0089] The sleeve block 24 is provided on the side of the L-shaped movable plate 22 away from the first wire pressing roller 20. One side of the L-shaped support frame 5 is rotatably connected to the second screw rod 25, and the sleeve block 24 is sleeved on the second screw rod 25;

[0090] A disc 31 is provided at an end of the second wire pressing roller 21 away from the fourth transmission bevel gear 29, and an eccentric bayonet 32 ​​is installed on the disc 31;

[0091] A T-shaped push plate 34 is provided on one side of the disc 31. A guide groove 33 is provided on the T-shaped push plate 34. The T-shaped push plate 34 is slidably connected to the eccentric bayonet 32 ​​through the guide groove 33.

[0092] The piston cylinder 30 is provided at the bottom of the L-shaped support frame 5, and a solenoid valve 36 is provided at the bottom of the piston cylinder 30;

[0093] The piston rod 35 is mounted on the bottom of the T-shaped push plate 34 and extends to the inside of the piston cylinder 30 .

[0094] Among them, the positioning contact piece 16 is electrically connected to the external power supply through a wire, and the movable contact piece 13 is electrically connected to the solenoid valve 36 through a wire;

[0095] A vent hole is provided on one side of the top end of the piston cylinder 30 .

[0096] In this embodiment: when the yarn is conveyed, the second screw rod 25 is rotated first, and the rotation of the second screw rod 25 causes the sleeve block 24 to drive the L-shaped movable plate 22 to move downward, so that the first wire pressure roller 20 and the second wire pressure roller 21 are fitted together, thereby clamping the yarn between the first wire pressure roller 20 and the second wire pressure roller 21, and preventing the first wire pressure roller 20 and the second wire pressure roller 21 from affecting the conveying speed of the yarn by adjusting the speed of the servo motor 7. When the hexagonal rotating rod 19 rotates with the operation of the servo motor 7, the first transmission bevel gear 23 drives the first wire pressure roller 20 to rotate through the second transmission bevel gear 26, and at the same time, the third transmission bevel gear 27 drives the second wire pressure roller 21 to rotate through the fourth transmission bevel gear 29, so that the yarn feeder 3 is clamped during the conveying process of the yarn, and the yarn is conveyed by the second wire pressure roller. During the rotation of 21, the disc 31 drives the T-shaped push plate 34 to move up and down through the eccentric latch 32, so that the piston rod 35 moves relative to the piston cylinder 30, thereby allowing outside air to enter or exhaust the piston cylinder 30 through the electromagnetic valve 36. When the movable contact piece 13 is separated from the positioning contact piece 16, the electromagnetic valve 36 is powered off and closed. At this time, the internal space of the piston cylinder 30 below the piston rod 35 will be in a sealed state. At this time, the air below the piston rod 35 cannot be discharged from the piston cylinder 30, so that the piston rod 35 cannot move, thereby stopping the rotation of the second wire pressing roller 21. At the same time, since the first wire pressing roller 20 and the second wire pressing roller 21 are connected by the hexagonal rotating rod 19, the first wire pressing roller 20 cannot rotate at this time, so that the yarn can be clamped, thereby facilitating the subsequent search for the thread end and the wiring of the yarn. Example 4

[0097] Please refer to Figure 2 、 Figure 5 、 Figure 8 , magnetic docking parts include:

[0098] The telescopic rod 37 is connected to the output end of the servo motor 7, and the bottom end of the telescopic rod 37 is provided with an electromagnet 40;

[0099] A swivel 39 is rotatably connected to the outer side of the electromagnet 40;

[0100] A return spring 38 is provided at the bottom of the side plate 6 and connected to the swivel 39;

[0101] The iron block 41 is disposed on the top end of the hexagonal rotating rod 19 .

[0102] The electromagnet 40 is electrically connected to the movable contact piece 13 through a wire;

[0103] The return spring 38 is located outside the telescopic rod 37 , and the bottom diameter of the electromagnet 40 is smaller than the diameter of the iron block 41 .

[0104] In this embodiment: when the movable contact piece 13 is in contact with the positioning contact piece 16, the electromagnet 40 is energized to generate suction on the iron block 41, so that the electromagnet 40 is in contact with the iron block 41, and the return spring 38 and the telescopic rod 37 are extended. When the servo motor 7 is operating, the telescopic rod 37 is driven to rotate. During the rotation of the telescopic rod 37, the electromagnet 40 drives the iron block 41 to rotate, so as to rotate the hexagonal rotating rod 19. When the movable contact piece 13 is separated from the positioning contact piece 16, the electromagnet 40 is powered off and loses its magnetic force. At this time, the electromagnet 40 will be restored under the action of the elastic restoring force of the return spring 38, so as to disconnect the servo motor 7 from the hexagonal rotating rod 19, so as to realize the rapid stop of the first wire pressure roller 20 and the second wire pressure roller 21 when the yarn is broken, thereby preventing the yarn from escaping from between the first wire pressure roller 20 and the second wire pressure roller 21.

[0105] In combination with the above-mentioned circular knitting machine with adaptive yarn feeding function, a method for operating a circular knitting machine with adaptive yarn feeding function is provided below, which specifically includes the following steps:

[0106] S1: First, the yarn is connected to the knitting equipment in the circular knitting machine body 1 through the yarn feeder 3;

[0107] S2: The yarn is fed by the operation of the yarn feeder 3, and the speed of the servo motor 7 is adjusted by the controller 8. After the threading is completed, the worm 9 is rotated, and the rotation of the worm 9 causes the rotary connecting bin 10 to rotate synchronously with the worm gear 11. At this time, due to the fixing of the movable contact piece 13 by the locking pin 18, the movable contact piece 13 cannot be separated from the positioning contact piece 16 under the action of the elastic restoring force of the arc spring 15. When one side of the touch rotating rod 4 is in contact with the yarn, the worm 9 is stopped and the first screw rod 12 is dialed, so that the movable block 17 drives the locking pin 18 to move, thereby separating the locking pin 18 from the locking hole 14. At this time, the movable contact piece 13 will lose its limit, but the touch rotating rod 4 cannot swing due to the obstruction of the yarn;

[0108] S3: Rotate the second screw rod 25, and the sleeve block 24 drives the L-shaped movable plate 22 to move downward through the rotation of the second screw rod 25, so that the first conductor pressure roller 20 and the second conductor pressure roller 21 are fitted together, thereby clamping the yarn between the first conductor pressure roller 20 and the second conductor pressure roller 21, and preventing the first conductor pressure roller 20 and the second conductor pressure roller 21 from affecting the conveying speed of the yarn by adjusting the speed of the servo motor 7. When the hexagonal rotating rod 19 rotates with the operation of the servo motor 7, the first transmission bevel gear 23 drives the first conductor pressure roller 20 to rotate through the second transmission bevel gear 26, and the third transmission The movable bevel gear 27 drives the second conductor pressure roller 21 to rotate through the fourth transmission bevel gear 29, so that the yarn feeder 3 is clamped during the yarn conveying process. During the rotation of the second conductor pressure roller 21, the disc 31 drives the T-shaped push plate 34 to move up and down through the eccentric latch 32, so that the piston rod 35 moves relative to the piston cylinder 30, so that the outside air enters or is discharged from the piston cylinder 30 through the electromagnetic valve 36. When the movable contact piece 13 is separated from the positioning contact piece 16, the electromagnetic valve 36 is powered off and closed. At this time, the internal space of the piston cylinder 30 below the piston rod 35 will be in a sealed state. At this time, the piston rod 35 5 below cannot be discharged from the piston cylinder 30, so that the piston rod 35 cannot move, thereby stopping the second conductor pressing roller 21 from rotating. At the same time, since the first conductor pressing roller 20 and the second conductor pressing roller 21 are connected by the hexagonal rotating rod 19, the first conductor pressing roller 20 cannot rotate at this time, so that the yarn can be clamped, thereby facilitating the subsequent search for the thread end and the wiring of the yarn. When the movable contact piece 13 is in contact with the positioning contact piece 16, the electromagnet 40 is energized to generate suction to the iron block 41, thereby making the electromagnet 40 fit with the iron block 41, and at the same time the reset spring 38 and the telescopic rod 37 are extended. When the servo motor 7 is in operation, it drives the telescopic rod 37 to rotate. During the rotation of the telescopic rod 37, the electromagnet 40 drives the iron block 41 to rotate, thereby rotating the hexagonal rotating rod 19. When the movable contact piece 13 is separated from the positioning contact piece 16, the electromagnet 40 is powered off and loses its magnetic force. At this time, the electromagnet 40 will be restored under the action of the elastic restoring force of the reset spring 38, thereby disconnecting the servo motor 7 from the hexagonal rotating rod 19, thereby realizing the rapid stop of the first conductor pressure roller 20 and the second conductor pressure roller 21 when the yarn is broken, thereby preventing the yarn from escaping from between the first conductor pressure roller 20 and the second conductor pressure roller 21;

[0109] S4: After that, the staff can quickly find the yarn ends based on the clamped yarn and connect the yarn.

[0110] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A circular knitting machine with adaptive yarn feeding function, characterized in that: It includes a circular knitting machine body (1); A mounting frame (2) is provided on the top of the circular knitting machine body (1); A yarn feeder (3) is installed on the top of the mounting frame (2), and the yarn feeder (3) is composed of a yarn feeder housing (301), a yarn clamping piece (302), a guide wire piece (303), and a winding wheel (304); A controller (8) is arranged on the top of the yarn feeder housing (301); A side plate (6) is mounted on one side of the yarn feeder housing (301), and a servo motor (7) is mounted on the top of one side of the side plate (6); An L-shaped support frame (5) is installed on a side of the yarn feeder (3) away from the side plate (6), and a hexagonal rotating rod (19) is provided on one side of the L-shaped support frame (5) and is located below the side plate (6); A magnetic docking member connected to the output end of the servo motor (7) for transmission connection between the servo motor (7) and the hexagonal rotating rod (19); A synchronous yarn pressing member is provided on the hexagonal rotating rod (19) and is used to clamp the broken yarn; A touch rotating rod (4) is rotatably connected to the yarn feeder housing (301) and is located on one side of the side plate (6); A position adjustment touch control unit is provided on the touch rotating rod (4) and is used to control the magnetic docking unit and the synchronous yarn pressing unit; the position adjustment touch control unit comprises: A rotating connecting bin (10) is mounted on the outside of one end of the touch rotating rod (4); A worm wheel (11) is mounted on the outer wall of the rotary connecting bin (10); one side of the yarn feeder housing (301) is rotatably connected to a worm (9) meshing with the worm wheel (11); A positioning contact piece (16) is mounted on the inner wall of the large circular knitting machine body (1), and a movable contact piece (13) located on one side of the positioning contact piece (16) is slidably connected to the inner side of the rotating connecting bin (10); An arc spring (15) is provided on a side of the movable contact piece (13) away from the positioning contact piece (16), and the movable contact piece (13) is connected to the inner wall of the rotary connecting bin (10) via the arc spring (15); A first screw rod (12) is rotatably connected to the outer wall of the rotating connecting bin (10) and is located above the contact rotating rod (4); a movable block (17) is sleeved on the first screw rod (12); A locking hole (14) is formed on the movable contact piece (13); a locking pin (18) extending into the interior of the locking hole (14) is provided on a side of the movable block (17) close to the rotating connecting bin (10); The synchronous yarn pressing member comprises: A T-shaped positioning plate (28) is provided on one side of the L-shaped support frame (5), and the top of the T-shaped positioning plate (28) is rotatably connected to a second wire pressing roller (21) via a bearing; A third transmission bevel gear (27) is rotatably connected to one side of the T-shaped positioning plate (28) and is located outside the hexagonal rotating rod (19); a fourth transmission bevel gear (29) disposed at one end of the second wire pressing roller (21) close to the hexagonal rotating rod (19), the fourth transmission bevel gear (29) being meshed with the third transmission bevel gear (27); A first transmission bevel gear (23) is movably sleeved on the hexagonal rotating rod (19) and is located above the third transmission bevel gear (27); an L-shaped movable plate (22) is provided on the top of the first transmission bevel gear (23) and is located outside the hexagonal rotating rod (19); A first conductor pressing roller (20) is rotatably connected to one side of the L-shaped movable plate (22) and is located above the second conductor pressing roller (21); one end of the first conductor pressing roller (20) is provided with a second transmission bevel gear (26) meshing with the first transmission bevel gear (23); A sleeve block (24) is arranged on a side of the L-shaped movable plate (22) away from the first wire pressure roller (20), one side of the L-shaped support frame (5) is rotatably connected to a second screw rod (25), and the sleeve block (24) is sleeved on the second screw rod (25); A disc (31) is provided at one end of the second wire pressing roller (21) away from the fourth transmission bevel gear (29), and an eccentric bayonet (32) is installed on the disc (31); A T-shaped push plate (34) is provided on one side of the disc (31), a guide groove (33) is provided on the T-shaped push plate (34), and the T-shaped push plate (34) is slidably connected to the eccentric bayonet (32) through the guide groove (33); A piston cylinder (30) is provided at the bottom of the L-shaped support frame (5), and a solenoid valve (36) is provided at the bottom of the piston cylinder (30); The piston rod (35) is installed at the bottom of the T-shaped push plate (34) and extends to the inner side of the piston cylinder (30); the positioning contact (16) is electrically connected to the external power supply through a wire, and the movable contact (13) is electrically connected to the solenoid valve (36) through a wire.

2. The circular knitting machine with adaptive yarn feeding function according to claim 1, characterized in that: Locking pins (18) are provided on both sides of the movable block (17), and locking holes (14) are provided on the positioning contact piece (16) and the movable contact piece (13).

3. The circular knitting machine with adaptive yarn feeding function according to claim 2, characterized in that: A vent hole is provided on one side of the top end of the piston cylinder (30).

4. The circular knitting machine with adaptive yarn feeding function according to claim 3, characterized in that: The magnetic docking piece includes: A telescopic rod (37) is connected to the output end of the servo motor (7), and an electromagnet (40) is provided at the bottom end of the telescopic rod (37); A swivel (39) rotatably connected to the outer side of the electromagnet (40); A return spring (38) is provided at the bottom of the side plate (6) and is connected to the swivel (39); The iron block (41) is arranged on the top end of the hexagonal rotating rod (19).

5. The circular knitting machine with adaptive yarn feeding function according to claim 4, characterized in that: The electromagnet (40) is electrically connected to the movable contact piece (13) via a wire.

6. The circular knitting machine with adaptive yarn feeding function according to claim 5, characterized in that: The return spring (38) is located outside the telescopic rod (37), and the bottom diameter of the electromagnet (40) is smaller than the diameter of the iron block (41).

7. A method for operating a circular knitting machine with an adaptive yarn feeding function, characterized in that: A circular knitting machine with an adaptive yarn feeding function according to any one of claims 1 to 6 comprises the following steps: S1: First, the yarn is connected so that the yarn passes through the yarn feeder (3) and is connected to the knitting device in the circular knitting machine body (1); S2: The yarn is fed through the operation of the yarn feeder (3), and the speed of the servo motor (7) is adjusted by the controller (8), and the rotating rod (4) is touched to fit the yarn; S3: During the feeding process, the yarn is limited by the synchronous yarn pressing member. When the yarn is broken, the touch rotating rod (4) swings due to the loss of the yarn shielding, thereby causing the position adjustment touch control unit to control the magnetic docking member and the synchronous yarn pressing member to stop operating, thereby clamping the yarn; S4: After that, the staff can quickly find the yarn ends based on the clamped yarn and connect the yarn.

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