Flat knitting machine for knitted fabric

Abstract

The invention relates to the technical field of flat knitting machines, in particular to a flat knitting machine for knitted fabric. The problem that in the prior art, when a flat knitting machine cuts threads, thread residues are prone to being clamped into a cutting groove is solved, and the practicability of equipment is improved. The knitting machine structurally comprises a fixing frame, a protective shell is fixed to the fixing frame, a knitting chamber is arranged in the protective shell, a mounting box is arranged in the knitting chamber, a first thread guide rail and a second thread guide rail are fixed in the mounting box, a rotating wheel is arranged between the first thread guide rail and the second thread guide rail, and a cutting structure used for cutting knitting threads is arranged on the rotating wheel. Limiting structures used for enabling the cutting structure to complete cutting when the rotating wheel rotates are further arranged on the two sides of the rotating wheel, and a control structure used for controlling the limiting structures to be close to or away from the rotating wheel is arranged in the mounting box. Knitting threads are conveyed and cut through the rotating wheel, the thread changing efficiency and the follow-up processing quality are improved, and the yield of processed fabric is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of flat knitting machines, and in particular to a flat knitting machine for knitted fabrics. Background Art

[0002] A flat knitting machine is a mechanical device used to make knitted fabrics. It can continuously and automatically knit fabrics on a knitting board. During the knitting process, it is inevitable that the thread will break or the thread needs to be changed.

[0003] In order to facilitate thread changing, the existing flat knitting machine is provided with a cutting groove on the thread transport rail of the knitting thread, and a cutting tool is arranged in the cutting groove, and the knitting thread is cut by rotating the cutting tool.

[0004] Although this can achieve the cutting and shearing operations on the knitting thread, the following problems still exist: after the original thread is cut and broken, the thread ends left after cutting may be brought into the cutting groove by the cutting tools. In this way, if the new thread continues to be transported forward, the thread ends may be pushed deeper into the cutting groove, causing the thread ends to be damaged or stuck and difficult to expose, affecting the thread change. Summary of the invention

[0005] The invention provides a knitting machine for knitted fabrics, which solves the problem in the prior art that thread ends are easily stuck in cutting grooves when the knitting machine cuts threads, thereby improving the practicability of the equipment.

[0006] The technical solution of the present invention is as follows:

[0007] Flat knitting machines for knitted fabrics, including fixed frames,

[0008] A protective shell is fixed on the fixed frame, a knitting chamber is arranged in the protective shell, an installation box is arranged in the knitting chamber, a first wire rail and a second wire rail are fixed in the installation box, a rotating wheel is arranged between the first wire rail and the second wire rail, a cutting structure for cutting the knitting thread is arranged on the rotating wheel, limiting structures are also arranged on both sides of the rotating wheel for enabling the cutting structure to complete cutting when the rotating wheel rotates, and a control structure for controlling the limiting structure to approach or move away from the rotating wheel is arranged in the installation box.

[0009] Furthermore, the cutting structure includes a first cutting knife and a second cutting knife, a wire groove is provided on the outer wall of the rotating wheel, and a mounting groove is also provided on the outer wall of the rotating wheel, and the two sides of the bottom of the mounting groove are rotatably connected with a first mounting part and a second mounting part respectively, the first cutting knife is fixed to the first mounting part by a threaded connection, and the second cutting knife is fixed to the second mounting part by a threaded connection.

[0010] Furthermore, a limit groove is provided at the bottom of the installation groove, a first sliding block is fixed on the first mounting member, and a second sliding block is fixed on the second mounting member, the first sliding block and the second sliding block are both arranged in the limit groove, a sliding rod is slidingly connected between the first sliding block and the second sliding block, a first limit bolt and a second limit bolt are respectively fixed on both sides of the sliding rod, the first limit bolt and the second limit bolt are respectively abutted against the first sliding block and the second sliding block, a limit spring is also sleeved on the sliding rod, and both ends of the limit spring are respectively fixedly connected to the first sliding block and the second sliding block.

[0011] Furthermore, the first mounting member includes a connecting rod, one end of the connecting rod is rotatably connected to the mounting groove, the other end of the connecting rod is provided with a bending rod, the bending rod is provided with a limiting member on the side away from the second mounting member, the limiting member is a right-angle trapezoidal structure, the limiting member is provided with a limiting block on the end away from the second mounting member, the first cutting knife is fixed to the limiting member by a threaded connection, the first cutting knife is abutted against the limiting block, and the first mounting member and the second mounting member have the same structure.

[0012] Furthermore, the limiting structure includes a first limiting wheel and a second limiting wheel, the first limiting wheel and the second limiting wheel are respectively arranged on both sides of the rotating wheel, the first limiting wheel abuts against the limiting block on the first mounting member, the second limiting wheel abuts against the limiting block on the second mounting member, a rotating shaft is fixed at the center of the rotating wheel, the distance between the first limiting wheel and the rotating shaft is equal to the distance between the limiting member and the rotating shaft, and the second limiting wheel has the same structure as the first limiting wheel.

[0013] Furthermore, the control structure includes a first driving motor, a mounting frame is also provided in the mounting box, the first driving motor is fixedly connected to the mounting frame, the rotating shaft is rotatably connected to the mounting frame, and the mounting frame is also rotatably connected to a screw rod, the output shaft of the first driving motor is fixedly connected to the screw rod, and the two sides of the rotating shaft are respectively slidably connected to a third sliding block and a fourth sliding block, a first rotating rod is fixed on the top of the third sliding block, and a second rotating rod is fixed on the top of the fourth sliding block, the first limiting wheel is arranged on the top of the first rotating rod and is rotatably connected to the first rotating rod, the second limiting wheel is arranged on the top of the second rotating rod and is rotatably connected to the second rotating rod, and a first thread and a second thread are respectively provided at both ends of the screw rod, the first thread and the second thread have opposite rotation directions, the third sliding block is threadedly connected to the first thread, and the fourth sliding block is threadedly connected to the second thread.

[0014] Furthermore, a wire hole is provided in the first wire rail, and the cross-section of the wire hole is a "convex"-shaped structure. A guide plate is fixed to the first guide rail near the rotating wheel end, and the guide plate abuts against the wire groove. The second wire rail has the same structure as the first wire rail, and the first wire rail and the second wire rail are both fixedly connected to the mounting frame.

[0015] Furthermore, a second drive motor is provided on the fixing frame, and an output shaft of the second drive motor is fixedly connected to the rotating shaft.

[0016] Furthermore, a guide wheel is provided at the end of the second guide rail away from the first guide rail, and the guide wheel is rotatably connected to the mounting frame. A conveyor belt is provided on the mounting frame, and two ends of the conveyor belt are respectively connected to the guide wheel and the rotating shaft.

[0017] Furthermore, an anti-skid layer is bonded and fixed to the bottom of the wire trough, and the anti-skid layer is made of rubber material. The installation box is also provided with a first sealing door and a second sealing door, and the first sealing door and the second sealing door are both rotatably connected to the installation box.

[0018] The working principle and beneficial effects of the present invention are:

[0019] The working process of this embodiment is as follows: when it is necessary to cut the thread, start the first driving motor first, at this time the first driving motor drives the screw rod to rotate, the first sliding block and the second sliding block move closer to each other, and then start the second driving motor, the rotating wheel rotates accordingly, and drives the first mounting member and the second mounting member to approach the first limiting wheel and the second limiting wheel respectively, and then under the action of the limiting blocks, the first cutting shears and the second cutting shears move closer to each other to complete the cutting of the knitted thread, and then start the first driving motor in the reverse direction, and the first sliding block and the second sliding block move away from each other under the drive of the screw rod. Since the first mounting member and the second mounting member are not affected by the first limiting wheel and the second limiting wheel when rotating, the rotating wheel no longer cuts the knitted thread when rotating, and the cut knitted thread continues to move forward driven by the rotating wheel, which is convenient for thread changing operation.

[0020] In this embodiment, an installation box is arranged in the knitting room, a rotating wheel is arranged in the installation box, and a cutting structure is arranged on the rotating wheel. A control structure is arranged in the installation box to control the limit structure to approach or move away from the cutting structure, so as to control the cutting structure to cut the knitting thread. The present invention replaces the design of setting a cutting groove on the guide rail in the prior art. The present invention utilizes the rotating wheel to complete the transportation and cutting of the knitting thread. The knitting thread can be transported more smoothly after cutting, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Figure 1It is a structural schematic diagram of the prior art;

[0023] Figure 2 This is a schematic diagram of the overall structure of this embodiment;

[0024] Figure 3 It is a structural schematic diagram of the installation box in this embodiment;

[0025] Figure 4 The internal structure of the installation box in this embodiment is shown in FIG. Figure 1 ;

[0026] Figure 5 The internal structure of the installation box in this embodiment is shown in FIG. Figure 2 ;

[0027] Figure 6 is a schematic structural diagram of the rotating wheel in this embodiment;

[0028] Figure 7 Schematic diagram of the limiting groove structure in this embodiment.

[0029] In the figure:

[0030] 1. Fixing frame; 2. Protective shell; 21. Knitting room; 3. Mounting box; 31. First sealing door; 32. Second sealing door; 4. Mounting frame; 41. Screw rod; 411. First driving motor; 51. First wire rail; 511. Wire hole; 512. Guide plate; 52. Second wire rail; 6. Rotating wheel; 61. Mounting groove; 62. First mounting member; 621. Connecting rod; 622. Bending rod; 623. Limiting member; 624. Limiting block; 625. First cutting knife; 626. First sliding block ; 63. Second mounting member; 631. Second cutting knife; 632. Second sliding block; 64. Rotating shaft; 641. Second driving motor; 65. Limiting groove; 651. Sliding rod; 6511. First limiting bolt; 6512. Second limiting bolt; 652. Limiting spring; 66. Wire groove; 71. First limiting wheel; 711. Third sliding block; 712. First rotating rod; 72. Second limiting wheel; 721. Fourth sliding block; 722. Second rotating rod; 8. Conveyor belt; 9. Wire wheel. DETAILED DESCRIPTION

[0031] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0032] like Figure 2 to Figure 7As shown, this embodiment proposes a knitting machine for knitted fabrics, and its structure includes a fixed frame 1. The protective shell 2 in this embodiment is fixedly set on the fixed frame 1 to prevent external dust from entering and affecting the knitting effect. The knitting chamber 21 is arranged in the protective shell 2. The installation box 3 is arranged in the knitting chamber 21 to prevent the debris generated during knitting in the knitting chamber 21 from affecting the internal parts. The first conductor rail 51 and the second conductor rail 52 are arranged in the installation box 3 to guide the knitting thread, ensure that the knitting thread moves along the first conductor rail 51 and the second conductor rail, and prevent the knitting thread from moving out of position. The rotating wheel 6 is arranged between the first conductor rail 51 and the second conductor rail 52 to provide movement power to the knitting thread. The cutting structure is arranged on the rotating wheel 6 to cut the knitting thread. The limiting structure is arranged on both sides of the rotating wheel 6 to enable the cutting structure to complete cutting when the rotating wheel 6 rotates. The control structure is arranged in the installation box 3 to control the limiting structure to approach or move away from the rotating wheel 6.

[0033] The anti-skid layer in this embodiment is fixedly arranged and bonded to the bottom of the wire groove 66. The anti-skid layer is made of rubber material. This design increases the friction between the wire groove 66 and the knitting thread, and the rotating wheel 6 can more conveniently drive the knitting thread to be transported. The first sealing door 31 and the second sealing door 32 are arranged on the installation box 3, and the first sealing door 31 and the second sealing door 32 are both rotatably connected to the installation box 3. The design of the first sealing door 31 and the second sealing door 32 in this embodiment is to facilitate the disassembly, installation and replacement of the first cutting knife 625 and the second cutting knife, as well as the maintenance of other internal parts.

[0034] The cutting structure in this embodiment includes a first cutting blade 625 and a second cutting blade 631. The guide wire groove 66 is arranged on the outer wall of the rotating wheel 6. The knitting thread passes through the guide wire groove 66 of the guide wheel 9, which can effectively reduce the deviation phenomenon of the knitting thread during movement. The mounting groove 61 is arranged on the outer wall of the rotating wheel 6. The first mounting member 62 and the second mounting member 63 are arranged on both sides of the bottom of the mounting groove 61. The first cutting blade 625 is fixed to the first mounting member 62 by threaded connection, and the second cutting blade 631 is fixed to the second mounting member 63 by threaded connection. Such a design can facilitate the disassembly and installation of the first cutting blade 625 and the second cutting blade 631. When the first cutting blade 625 and the second cutting blade 631 are close to each other, the knitting thread can be cut. When the first cutting blade 625 and the second cutting blade 631 are away from each other, the rotating wheel 6 will not cut the knitting thread. The rotation of the rotating wheel 6 can provide power for the movement of the knitting thread.

[0035] The first mounting member 62 in this embodiment includes a connecting rod 621, one end of which is rotatably connected to the mounting groove 61, and a bending rod 622 is arranged at the other end of the connecting rod 621. Since the mounting groove 61 itself is an arc-shaped structure, the design of the bending rod 622 in this embodiment ensures that the connecting rod 621 and the bending rod 622 can fit more closely on the mounting groove 61, thereby enhancing the stability of the structure. The limiting member 623 is arranged on the side of the bending rod 622 away from the second mounting member 63, and the limiting member 623 is a right-angled trapezoidal structure, which is used to abut against the first limiting wheel 71, so that the first mounting member 62 rotates toward the second mounting member 63 to complete the cutting action. The limiting block 624 is arranged at the end of the limiting member 623 away from the second mounting member 63, and is used to position the first cutting knife 625, so as to facilitate the installation of the first cutting knife 625. The first cutting knife 625 is fixed to the limiting member 623 by threaded connection, so as to facilitate the disassembly and installation of the first cutting knife 625. The first cutting blade 625 abuts against the limit block 624, and the first mounting member 62 and the second mounting member 63 have the same structure. In this embodiment, when the first cutting blade 625 or the second cutting blade 631 is found to be damaged, the first cutting blade 625 and the second cutting blade 631 can be replaced and installed in time.

[0036] The limiting groove 65 in this embodiment is arranged at the bottom of the mounting groove 61 and is also provided for placing the sliding rod 651. The first sliding block 626 is fixedly arranged on the first mounting member 62, and the second sliding block 632 is fixedly arranged on the second mounting member 63. The first sliding block 626 and the second sliding block 632 are both arranged in the limiting groove 65. The sliding rod 651 is slidingly arranged between the first sliding block 626 and the second sliding block 632. In this embodiment, the first sliding block 626 and the second sliding block 632 are slidingly arranged on the sliding rod 651, which can effectively limit the sliding position of the first sliding block 626 and the second sliding block 632 and prevent the first sliding block 626 and the second sliding block 632 from sliding and deviating. The first limiting bolt 6511 and the second limiting bolt 6512 are fixedly arranged on both sides of the sliding rod 651 to prevent the first sliding block 626 and the second sliding block 632 from detaching from the sliding rod 651. The first limiting bolt 6511 and the second limiting bolt 6512 are respectively in contact with the first sliding block 626 and the second sliding block 632, the limiting spring 652 is sleeved on the sliding rod 651, and the first sliding block 626 and the second sliding block 632 are fixedly arranged at both ends of the limiting spring 652. In this embodiment, under the action of the limiting spring 652, the first sliding block 626 and the second sliding block 632 move away from each other, so that the first cutting knife 625 on the first mounting member 62 and the second cutting knife 631 on the second mounting member 63 move away from each other under normal conditions without force, and the knitted thread will not be cut.

[0037] The limiting structure in this embodiment includes a first limiting wheel 71 and a second limiting wheel 72. The first limiting wheel 71 and the second limiting wheel 72 are arranged on both sides of the rotating wheel 6. The first limiting wheel 71 abuts against the limiting block 624 on the first mounting member 62, and the second limiting wheel 72 abuts against the limiting block 624 on the second mounting member 63. The rotating shaft 64 is fixedly arranged at the center of the rotating wheel 6. The distance between the first limiting wheel 71 and the rotating shaft 64 is equal to the distance between the limiting member 623 and the rotating shaft 64. The second limiting wheel 72 has the same structure as the first limiting wheel 71. In this embodiment, the first limiting wheel 71 and the second limiting wheel 72 abut against the limiting member 623 on the first mounting member 62 and the limiting member 623 on the second mounting member 63, respectively. When abutting, since the first limiting wheel 71 and the second limiting wheel 72 can rotate, the wear between the first limiting wheel 71 and the second limiting wheel 72 and their respective limiting members 623 is reduced, making this embodiment more durable and extending its service life.

[0038] The control structure in this embodiment includes a first drive motor 411, a mounting frame 4 is arranged in the mounting box 3, the first drive motor 411 is fixedly connected to the mounting frame 4, the rotating shaft 64 is rotatably connected to the mounting frame 4, the screw 41 is rotatably arranged on the mounting frame 4, the output shaft of the first drive motor 411 is fixedly connected to the screw 41, the third sliding block 711 and the fourth sliding block 721 are slidably arranged on both sides of the rotating shaft 64, the first rotating rod 712 is fixedly arranged on the top of the third sliding block 711, the second rotating rod 722 is fixedly arranged on the top of the fourth sliding block 721, the first limiting wheel 71 is arranged on the top of the first rotating rod 712 and is rotatably connected to the first rotating rod 712, the second limiting wheel 72 is arranged on the top of the second rotating rod 722 and is rotatably connected to the second rotating rod 722, the first thread and the second thread are arranged at both ends of the screw 41, the first thread and the second thread are rotated in opposite directions, the third sliding block 711 is threadedly connected to the first thread, and the fourth sliding block 721 is threadedly connected to the second thread. The first drive motor 411 used in this embodiment is a two-phase motor, which can realize forward and reverse rotation. In this embodiment, the screw rod 41 is used to drive the third sliding block 711 and the fourth sliding block 721 to slide. Since the rotation stroke of the screw rod 41 is much larger than the sliding stroke of the third sliding block 711 and the fourth sliding block 721, the sliding parking position of the third sliding block 711 and the fourth sliding block 721 on the screw rod 41 can be achieved more accurately and reliably.

[0039] The wire hole 511 in this embodiment is arranged in the first wire rail 51. The cross section of the wire hole 511 is a "convex"-shaped structure, which is used to prevent the knitting thread from being deviated from the wire hole 511 when it moves in the wire hole 511. The guide plate 512 is fixedly arranged at the end of the first guide rail close to the rotating wheel 6. The guide plate 512 abuts against the wire groove 66 to guide the knitting thread to enter or leave the first wire rail 51, so that the knitting thread enters or leaves the first wire rail 51 more smoothly and reduces its movement deviation. The second wire rail 52 has the same structure as the first wire rail 51. The first wire rail 51 and the second wire rail 52 are both fixedly connected to the mounting frame 4.

[0040] In this embodiment, the second drive motor 641 is fixedly arranged on the fixing frame 1, and the output shaft of the second drive motor 641 is fixedly connected to the rotating shaft 64. In this embodiment, the second drive motor 641 is used to control the rotation of the rotating shaft 64 to drive the rotating wheel 6 to rotate. The rotation of the rotating wheel 6 is automatically controlled, and the rotation control of the rotating wheel 6 is more accurate and reliable.

[0041] The wire wheel 9 in this embodiment is arranged at the end of the second wire rail 52 away from the first wire rail 51, the wire wheel 9 is rotatably connected to the mounting frame 4, the conveyor belt 8 is arranged on the mounting frame 4, and the two ends of the conveyor belt 8 are respectively connected to the wire wheel 9 and the rotating shaft 64. The wire wheel 9 in this embodiment can change the movement direction of the knitting thread, which is convenient for feeding the knitting thread downward. The conveyor belt 8 in this embodiment drives the wire wheel 9 so that the wire wheel 9 and the rotating wheel 6 can rotate synchronously, avoiding the situation that the knitting thread has inconsistent movement speeds at different positions during the feeding process.

[0042] The working process of this embodiment is as follows: when it is necessary to cut the thread, the first driving motor 411 is started first. At this time, the first driving motor 411 drives the screw rod 41 to rotate, and the first sliding block 626 and the second sliding block 632 move closer to each other. Then, the second driving motor 641 is started, and the rotating wheel 6 rotates accordingly, and drives the first mounting member 62 and the second mounting member 63 to move closer to the first limiting wheel 71 and the second limiting wheel 72 respectively. Then, under the action of the limiting block 624, the first cutting knife 625 and the second cutting knife 631 move closer to each other to complete the cutting of the knitted thread, and then the first driving motor 411 is started in the reverse direction. Under the drive of the screw rod 41, the first sliding block 626 and the second sliding block 632 move away from each other. Since the first mounting member 62 and the second mounting member 63 are not affected by the first limiting wheel 71 and the second limiting wheel 72 during rotation, the rotating wheel 6 no longer cuts the knitted thread when it rotates, and the cut knitted thread continues to move forward under the drive of the rotating wheel 6, which is convenient for the thread changing operation.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flat knitting machine for knitted fabrics, comprising a fixed frame (1), characterized in that: A protective shell (2) is fixed on the fixed frame (1), a knitting chamber (21) is arranged in the protective shell (2), a mounting box (3) is arranged in the knitting chamber (21), a first conductor rail (51) and a second conductor rail (52) are fixed in the mounting box (3), a rotating wheel (6) is arranged between the first conductor rail (51) and the second conductor rail (52), a cutting structure for cutting knitted thread is arranged on the rotating wheel (6), limiting structures are arranged on both sides of the rotating wheel (6) for enabling the cutting structure to complete cutting when the rotating wheel (6) rotates, and a control structure for controlling the limiting structure to approach or move away from the rotating wheel (6) is arranged in the mounting box (3).

2. The flat knitting machine for knitted fabrics according to claim 1, characterized in that: The cutting structure comprises a first cutting blade (625) and a second cutting blade (631); a guide wire groove (66) is provided on the outer wall of the rotating wheel (6); a mounting groove (61) is also provided on the outer wall of the rotating wheel (6); a first mounting member (62) and a second mounting member (63) are rotatably connected on both sides of the bottom of the mounting groove (61); the first cutting blade (625) is fixed to the first mounting member (62) by means of a threaded connection, and the second cutting blade (631) is fixed to the second mounting member (63) by means of a threaded connection.

3. The flat knitting machine for knitted fabrics according to claim 2, characterized in that: The bottom of the installation groove (61) is also provided with a limiting groove (65); a first sliding block (626) is fixed on the first installation member (62); a second sliding block (632) is fixed on the second installation member (63); the first sliding block (626) and the second sliding block (632) are both arranged in the limiting groove (65); a sliding rod (651) is slidably connected between the first sliding block (626) and the second sliding block (632); the sliding rod (651) is slidably connected between the first sliding block (626) and the second sliding block (632); A first limiting bolt (6511) and a second limiting bolt (6512) are respectively fixed on both sides of 51, and the first limiting bolt (6511) and the second limiting bolt (6512) are respectively abutted against the first sliding block (626) and the second sliding block (632), and a limiting spring (652) is also sleeved on the sliding rod (651), and the two ends of the limiting spring (652) are respectively fixedly connected to the first sliding block (626) and the second sliding block (632).

4. The flat knitting machine for knitted fabrics according to claim 2, characterized in that: The first mounting member (62) comprises a connecting rod (621), one end of the connecting rod (621) is rotatably connected to the mounting groove (61), the other end of the connecting rod (621) is provided with a bending rod (622), a limiting member (623) is provided on the side of the bending rod (622) away from the second mounting member (63), the limiting member (623) is a right-angled trapezoidal structure, a limiting block (624) is provided on the end of the limiting member (623) away from the second mounting member (63), the first cutting blade (625) is fixed to the limiting member (623) by threaded connection, the first cutting blade (625) is in contact with the limiting block (624), and the first mounting member (62) and the second mounting member (63) have the same structure.

5. The flat knitting machine for knitted fabrics according to claim 4, characterized in that: The limiting structure comprises a first limiting wheel (71) and a second limiting wheel (72), the first limiting wheel (71) and the second limiting wheel (72) being respectively arranged on both sides of the rotating wheel (6), the first limiting wheel (71) being in contact with a limiting block (624) on the first mounting member (62), the second limiting wheel (72) being in contact with a limiting block (624) on the second mounting member (63), a rotating shaft (64) being fixed at the center of the rotating wheel (6), the distance between the first limiting wheel (71) and the rotating shaft (64) being equal to the distance between the limiting member (623) and the rotating shaft (64), and the second limiting wheel (72) having the same structure as the first limiting wheel (71).

6. The flat knitting machine for knitted fabrics according to claim 5, characterized in that: The control structure comprises a first drive motor (411); a mounting frame (4) is further provided in the mounting box (3); the first drive motor (411) is fixedly connected to the mounting frame (4); the rotating shaft (64) is rotationally connected to the mounting frame (4); a screw rod (41) is also rotationally connected to the mounting frame (4); an output shaft of the first drive motor (411) is fixedly connected to the screw rod (41); two sides of the rotating shaft (64) are respectively slidably connected to a third sliding block (711) and a fourth sliding block (721); a first rotating rod (711) is fixedly connected to the top of the third sliding block (711); 2), a second rotating rod (722) is fixed on the top of the fourth sliding block (721), the first limiting wheel (71) is arranged on the top of the first rotating rod (712) and is rotatably connected to the first rotating rod (712), the second limiting wheel (72) is arranged on the top of the second rotating rod (722) and is rotatably connected to the second rotating rod (722), the two ends of the screw rod (41) are respectively provided with a first thread and a second thread, the first thread and the second thread have opposite rotation directions, the third sliding block (711) is threadedly connected to the first thread, and the fourth sliding block (721) is threadedly connected to the second thread.

7. The flat knitting machine for knitted fabrics according to claim 6, characterized in that: A wire hole (511) is provided in the first wire rail (51), and the cross section of the wire hole (511) is a "convex"-shaped structure. A guide plate (512) is fixed to the end of the first guide rail close to the rotating wheel (6), and the guide plate (512) abuts against the wire groove (66). The second wire rail (52) and the first wire rail (51) have the same structure, and the first wire rail (51) and the second wire rail (52) are both fixedly connected to the mounting frame (4).

8. The flat knitting machine for knitted fabrics according to claim 5, characterized in that: A second drive motor (641) is also provided on the fixed frame (1), and an output shaft of the second drive motor (641) is fixedly connected to the rotating shaft (64).

9. The flat knitting machine for knitted fabrics according to claim 8, characterized in that: A guide wheel (9) is provided at the end of the second guide rail (52) away from the first guide rail (51), and the guide wheel (9) is rotatably connected to the mounting frame (4). A conveyor belt (8) is provided on the mounting frame (4), and two ends of the conveyor belt (8) are respectively connected to the guide wheel (9) and the rotating shaft (64).

10. The flat knitting machine for knitted fabrics according to claim 1, characterized in that: The bottom of the wire groove (66) is bonded and fixed with an anti-skid layer, the anti-skid layer being made of a rubber material. The installation box (3) is also provided with a first sealing door (31) and a second sealing door (32), and the first sealing door (31) and the second sealing door (32) are both rotatably connected to the installation box (3).

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