Yarn changing device of double-sided circular knitting machine

Abstract

The utility model discloses a yarn changing device of a double-faced circular knitting machine, which belongs to the technical field of yarn changing of circular knitting machines, and is characterized by comprising a yarn ring and a rack, a yarn changing mechanism is arranged at the top of the rack, a discharge groove is arranged on the surface of the rack, and the yarn changing mechanism is arranged on the discharge groove. Yarn rings rolling in from the upper portion are rolled into the yarn changing bin through rotation of the yarn changing roller, then the yarn rings can naturally fall into the discharging groove after rotating by a certain angle, after continuous rotation, one side of the blocking face can rotate to one side of the original yarn changing bin, the yarn rings falling from the upper portion are blocked, and subsequent yarn rings are prevented from continuously falling off; the baffle is fixedly arranged at one end of the telescopic rod and arranged on one side of the discharging bin, and different telescopic lengths are changed according to yarn rings of different sizes, so that one end of the yarn ring falling into the discharging bin is temporarily blocked, the falling direction of the yarn ring is changed, and the yarn ring is changed to vertically fall to better adapt to a circular knitting machine below.

Description

Technical Field

[0001] The utility model relates to the technical field of yarn changing of large circular knitting machines, in particular to a yarn changing device of a double-sided large circular knitting machine. Background Art

[0002] Circular knitting machine, scientifically known as circular weft knitting machine, has developed rapidly due to its multiple loop forming systems, high speed, high output, fast pattern change, good fabric quality, fewer processes and strong product adaptability. The yarn changing device of the circular knitting machine can realize fast and accurate yarn changing operation, thereby ensuring the smooth progress of the weaving process. If the yarn changing device fails or is not replaced in time, it may affect the weaving efficiency and product quality. Therefore, the yarn changing device of the circular knitting machine is of great importance in the weaving process.

[0003] There is no explanation on how the tension wheel swings and the swing may not be practical in real situations. At the same time, the yarn guide nozzle is fixed and cannot be connected, which is not conducive to practical application in real situations.

[0004] The Chinese utility model patent with the current announcement number of CN213835770U discloses a yarn changing device for a double-sided large circular knitting machine, comprising a rotating rod and a baffle, wherein the rotating rod is mounted on a yarn guide head, and a yarn guide tube is mounted in the yarn guide head, and the yarn guide head is arranged at the left end of the yarn changing rod, the adjusting plate is hinged at one end of the support plate, and the support plate is mounted on the base, and a tensioning wheel is installed between the adjusting plates, and both ends of the hinge between the adjusting plate and the support plate are provided with an adjusting device; the baffle is mounted above the support plate, the sliding plate is slidably connected to the baffle, the electric telescopic rod is mounted inside the base, and the left end of the base is connected to the protective plate through a connecting plate, a first return spring is arranged at the bottom right side of each group of yarn changing rods, and the middle part of the yarn changing rod is arranged on a pin shaft, and the pin shaft is in the support plate. In the yarn changing device of the double-sided large circular knitting machine, multiple groups of spheres are arranged inside the groove opened on the baffle, and a second return spring is installed under the bottom end of the multiple groups of spheres, which has the characteristic of enabling the sliding plate to slide and be fixed on the baffle.

[0005] In view of the above problems, the existing patents provide solutions, but the yarn changing principle is rather vague during use, which is inconsistent with the yarn changing principle of actual large circular knitting machines, and the direction of the yarn loop cannot be changed during the yarn changing process, which is not suitable for actual large circular knitting machines.

[0006] Therefore, a yarn changing device for a double-sided circular knitting machine is proposed. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The utility model provides a yarn changing device for a double-sided large circular knitting machine, aiming to solve the problems that the yarn changing principle of the existing double-sided large circular knitting machine is relatively vague during use, is inconsistent with the yarn changing principle of the actual large circular knitting machine, and cannot change the direction of the yarn loop during the yarn changing process, and is not suitable for the actual large circular knitting machine.

[0009] 2. Technical solution

[0010] The utility model is implemented as follows: a yarn changing device for a double-sided large circular knitting machine comprises a yarn coil and a frame, a yarn changing mechanism is arranged on the top of the frame, and a material discharging trough is opened on the surface of the frame;

[0011] The yarn changing mechanism includes a driving component and a yarn changing component, the driving component includes a fixed plate, a driving motor, a rotating groove and a rotating shaft, the fixed plate is fixedly arranged on one side of the top of the frame, the driving motor is fixedly arranged on one side of the top of the frame, the rotating groove is opened on the surface of the fixed plate, the number of the fixed plates is two groups, one end of the rotating shaft is fixedly arranged on the output end of the driving motor and rotates inside the rotating groove, and the fixed plate is located on both sides of the discharge trough.

[0012] In order to naturally fall into the discharge trough after rotating a certain angle, one side of the blocking surface will rotate to the side of the original yarn changing bin after continuing to rotate, blocking the yarn loops falling from above, and preventing subsequent yarn loops from continuing to fall. As a preferred yarn changing device of a double-sided large circular knitting machine of the utility model, the yarn changing assembly includes a yarn changing roller, a yarn changing bin and a blocking surface, the yarn changing roller is fixedly arranged between the rotating shafts, the yarn changing bin is opened on one side of the circumferential surface of the yarn changing roller, the blocking surface is arranged on one side of the yarn changing roller, the angle of the yarn changing bin is greater than 90 degrees, and the length of the yarn changing roller is less than the length of the discharge trough below.

[0013] In order to facilitate the addition of multiple yarn loops at one time, simply and quickly, a yarn changing device of a double-sided large circular knitting machine of the utility model is preferably provided with a support frame on one side of the frame, and a rolling frame is fixedly provided on the top of the support frame, and the bottom of the rolling frame is flush with the position of the yarn changing roller.

[0014] In order to allow the discharge bin to be used as a transition part, as a yarn changing device of a double-sided large circular knitting machine of the utility model, a discharge bin is fixedly arranged at the bottom of the discharge trough, the diameter of the discharge bin is the same as that of the discharge trough, and is arranged in an arc direction.

[0015] In order to replace the position of the limit guard plate in the mounting groove to adapt to different yarn loops, as a preferred yarn changing device of a double-sided large circular knitting machine of the utility model, limit guard plates are arranged on both sides of the rolling frame, and the inner surface of the rolling frame is provided with a mounting groove, and the limit guard plate is installed in the mounting groove.

[0016] In order to change the falling direction of the yarn coil so that the yarn coil drops vertically and better adapts to the large circular knitting machine below, a yarn changing device of a double-sided large circular knitting machine of the utility model is preferably provided with a linear motor fixedly arranged on one side of the bottom of the frame, and a telescopic rod is fixedly arranged on the output end of the linear motor, and the number of the telescopic rods is two groups, and a baffle is fixedly arranged on one end of the telescopic rod, and the baffle is arranged on one side of the discharge bin.

[0017] In order to prevent the baffle from extending to half the width of the discharge bin to block the yarn coil from falling and causing blockage of the yarn coil, as a preferred yarn changing device of a double-sided large circular knitting machine of the utility model, the maximum telescopic length of the baffle is less than half the width of the discharge bin, and the baffle is made of a material with relatively high toughness.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides a yarn changing mechanism, and the yarn loop rolled in from above is rolled into the yarn changing bin through the rotation of the yarn changing roller, and then naturally falls into the discharging trough after rotating for a certain angle. After continuing to rotate, one side of the blocking surface will rotate to the side of the original yarn changing bin, so as to block the yarn loop falling from above and prevent the subsequent yarn loop from continuing to fall. A baffle is fixedly provided at one end of the telescopic rod, and the baffle is provided at one side of the discharging bin. Different telescopic lengths are changed according to yarn loops of different sizes, so as to temporarily block one end of the yarn loop falling into the discharging bin, change the falling direction of the yarn loop, and make the yarn loop drop vertically instead, so as to better adapt to the large circular knitting machine below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structure diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the axonometric view of the utility model;

[0023] Figure 3 It is a schematic diagram of the overall bottom of the utility model;

[0024] Figure 4 It is a schematic diagram of the yarn changing mechanism of the utility model;

[0025] Figure 5 It is a schematic diagram of the rolling rack of the utility model;

[0026] Figure 6 It is a schematic diagram of the yarn changing assembly of the utility model;

[0027] Figure 7 It is a partial schematic diagram of the telescopic rod and baffle of the utility model.

[0028] Description of the numbers in the figure:

[0029] 1. Yarn coil; 2. Frame; 3. Yarn changing mechanism; 301. Drive assembly; 302. Yarn changing assembly; 3011. Fixed plate; 3012. Drive motor; 3013. Rotating groove; 3014. Rotating shaft; 3021. Yarn changing roller; 3022. Yarn changing bin; 3023. Blocking surface; 4. Discharging trough; 5. Support frame; 6. Rolling frame; 7. Discharging bin; 8. Limiting guard plate; 9. Mounting groove; 10. Linear motor; 11. Telescopic rod; 12. Baffle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] See also Figure 1-7 The utility model provides a technical solution: a yarn changing device for a double-sided large circular knitting machine, comprising a yarn coil 1 and a frame 2, a yarn changing mechanism 3 is arranged on the top of the frame 2, and a discharge trough 4 is opened on the surface of the frame 2;

[0032] The yarn changing mechanism 3 includes a driving component 301 and a yarn changing component 302. The driving component 301 includes a fixed plate 3011, a driving motor 3012, a rotating groove 3013 and a rotating shaft 3014. The fixed plate 3011 is fixedly arranged on one side of the top of the frame 2. The driving motor 3012 is fixedly arranged on one side of the top of the frame 2. The rotating groove 3013 is opened on the surface of the fixed plate 3011. There are two groups of fixed plates 3011. One end of the rotating shaft 3014 is fixedly arranged on the output end of the driving motor 3012 and rotates inside the rotating groove 3013. The fixed plate 3011 is located on both sides of the discharge trough 4.

[0033] In this embodiment: by setting the driving component 301 including the fixed plate 3011, the driving motor 3012, the rotating groove 3013 and the rotating shaft 3014, when in use, the driving motor 3012 is used to drive the rotating shaft 3014 to rotate, thereby providing power for the entire device.

[0034] As a technical optimization scheme of the utility model, the yarn changing assembly 302 includes a yarn changing roller 3021, a yarn changing bin 3022 and a blocking surface 3023. The yarn changing roller 3021 is fixedly arranged between the rotating shafts 3014, the yarn changing bin 3022 is opened on one side of the circumference of the yarn changing roller 3021, the blocking surface 3023 is arranged on one side of the yarn changing roller 3021, the angle of the yarn changing bin 3022 is greater than 90 degrees, and the length of the yarn changing roller 3021 is less than the length of the lower discharge trough 4.

[0035] In this embodiment: by setting up the yarn changing component 302 including the yarn changing roller 3021, the yarn changing bin 3022 and the blocking surface 3023, when in use, the yarn coil 1 rolling in from above is rolled into the yarn changing bin 3022 through the rotation of the yarn changing roller 3021, and then naturally falls into the discharge trough 4 after rotating a certain angle, and after continuing to rotate, one side of the blocking surface 3023 will rotate to the side of the original yarn changing bin 3022, blocking the yarn coil 1 falling from above, and preventing the subsequent yarn coil 1 from continuing to fall.

[0036] As a technical optimization solution of the utility model, a support frame 5 is provided on one side of the frame 2, a rolling frame 6 is fixedly provided on the top of the support frame 5, and the bottom of the rolling frame 6 is flush with the position of the yarn changing roller 3021.

[0037] In this embodiment: a rolling rack 6 is fixedly provided on the top of the support frame 5, and the bottom of the rolling rack 6 is flush with the position of the yarn changing roller 3021. When in use, multiple yarn coils 1 are located inside the rolling rack 6, which is convenient for adding multiple yarn coils 1 at one time, which is simple and quick.

[0038] As a technical optimization solution of the present invention, a discharge bin 7 is fixedly provided at the bottom of the discharge chute 4. The diameter of the discharge bin 7 is the same as that of the discharge chute 4 and is arranged in an arc shape.

[0039] In this embodiment: a discharge bin 7 is fixedly provided at the bottom of the discharge trough 4, and the diameter of the discharge bin 7 is the same as that of the discharge trough 4. The yarn coil 1 falling from the discharge trough 4 passes through the discharge bin 7 and falls into the large circular knitting machine below. The discharge bin 7 can be used as a transition part.

[0040] As a technical optimization solution of the utility model, limit guard plates 8 are provided on both sides of the rolling frame 6, and the inner surface of the rolling frame 6 is provided with mounting grooves 9, and the limit guard plates 8 are installed in the mounting grooves 9.

[0041] In this embodiment: a mounting groove 9 is provided on the inner surface of the rolling frame 6, and a limit guard plate 8 is installed in the mounting groove 9. According to different uses of the large circular knitting machine, yarn coils 1 of different widths need to be replaced, and the narrower yarn coils 1 are not easy to limit the position inside the rolling frame 6. At this time, the position of the limit guard plate 8 in the mounting groove 9 is replaced to adapt to different yarn coils 1.

[0042] As a technical optimization solution of the utility model, a linear motor 10 is fixedly provided on one side of the bottom of the frame 2, and a telescopic rod 11 is fixedly provided on the output end of the linear motor 10. There are two groups of telescopic rods 11, and a baffle 12 is fixedly provided on one end of the telescopic rod 11. The baffle 12 is provided on one side of the discharge bin 7.

[0043] In this embodiment: a baffle 12 is fixedly provided at one end of a telescopic rod 11, and the baffle 12 is provided on one side of the discharge bin 7. When in use, the linear motor 10 drives the baffle 12 to extend and retract on one side of the discharge bin 7, and changes different telescopic lengths according to different sizes of yarn coils 1, so as to temporarily block one end of the yarn coil 1 falling into the discharge bin 7, change the falling direction of the yarn coil 1, and make the yarn coil 1 drop vertically instead, so as to better adapt to the large circular knitting machine below.

[0044] As a technical optimization solution of the present invention, the maximum telescopic length of the baffle 12 is less than half the width of the discharge bin 7, and the baffle 12 is made of a material with relatively high toughness.

[0045] In this embodiment: by setting the maximum extension length of the baffle 12 to be less than half the width of the discharge bin 7, during the falling process of the yarn coil 1, if the length of the baffle 12 is extended to half the width of the discharge bin 7, it may block the yarn coil 1 from falling, causing blockage of the yarn coil 1.

[0046] Working principle: First, when the yarn changing device of the double-sided large circular machine is used, it is driven by the driving motor 3012 to drive the rotating shaft 3014 to rotate. Multiple yarn coils 1 are located inside the rolling frame 6, which is convenient for adding multiple yarn coils 1 at one time. It is simple and quick. According to different uses of the large circular machine, yarn coils 1 of different widths need to be replaced, and the narrower yarn coils 1 are not easy to limit the position inside the rolling frame 6. At this time, the position of the limiting guard plate 8 in the installation groove 9 is replaced to be suitable for different yarn coils 1. The yarn coils 1 rolled in from above are rolled into the yarn changing bin by the rotation of the yarn changing roller 3021. 3022, and then after rotating a certain angle, it will naturally fall into the discharge trough 4. After continuing to rotate, one side of the blocking surface 3023 will rotate to the side of the original yarn changing bin 3022, and block the yarn coil 1 falling from above to prevent the subsequent yarn coil 1 from continuing to fall. The baffle 12 is driven by the linear motor 10 to extend and retract on one side of the discharge bin 7, and the different extension lengths are changed according to the different sizes of yarn coils 1, so as to temporarily block one end of the yarn coil 1 falling into the discharge bin 7, change the falling direction of the yarn coil 1, and make the yarn coil 1 drop vertically to better adapt to the large circular machine below.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A yarn changing device for a double-sided circular knitting machine, comprising a yarn coil (1) and a frame (2), characterized in that: A yarn changing mechanism (3) is arranged on the top of the frame (2), and a material discharge trough (4) is provided on the surface of the frame (2); The yarn changing mechanism (3) comprises a driving assembly (301) and a yarn changing assembly (302); the driving assembly (301) comprises a fixed plate (3011), a driving motor (3012), a rotating groove (3013) and a rotating shaft (3014); the fixed plate (3011) is fixedly arranged on one side of the top of the frame (2); the driving motor (3012) is fixedly arranged on one side of the top of the frame (2); the rotating groove (3013) is opened on the surface of the fixed plate (3011); the number of the fixed plates (3011) is two groups; one end of the rotating shaft (3014) is fixedly arranged on the output end of the driving motor (3012) and rotates inside the rotating groove (3013); the fixed plate (3011) is located on both sides of the discharge trough (4).

2. The yarn changing device of a double-sided circular knitting machine according to claim 1, characterized in that: The yarn changing assembly (302) comprises a yarn changing roller (3021), a yarn changing bin (3022) and a blocking surface (3023); the yarn changing roller (3021) is fixedly arranged between the rotating shafts (3014); the yarn changing bin (3022) is opened on one side of the circumference of the yarn changing roller (3021); the blocking surface (3023) is arranged on one side of the yarn changing roller (3021); the angle of the yarn changing bin (3022) is greater than 90 degrees; and the length of the yarn changing roller (3021) is less than the length of the lower discharge trough (4).

3. The yarn changing device of a double-sided circular knitting machine according to claim 2, characterized in that: A support frame (5) is provided on one side of the frame (2), a rolling frame (6) is fixedly provided on the top of the support frame (5), and the bottom of the rolling frame (6) is flush with the position of the yarn changing roller (3021).

4. The yarn changing device of a double-sided circular knitting machine according to claim 1, characterized in that: A discharge bin (7) is fixedly arranged at the bottom of the discharge trough (4); the diameter of the discharge bin (7) is the same as that of the discharge trough (4) and is arranged in an arc shape.

5. The yarn changing device of a double-sided circular knitting machine according to claim 3, characterized in that: Limiting guard plates (8) are arranged on both sides of the rolling frame (6), and a mounting groove (9) is arranged on the inner surface of the rolling frame (6), and the limiting guard plates (8) are installed in the mounting groove (9).

6. The yarn changing device of a double-sided circular knitting machine according to claim 4, characterized in that: A linear motor (10) is fixedly arranged on one side of the bottom of the frame (2), a telescopic rod (11) is fixedly arranged on the output end of the linear motor (10), the number of the telescopic rods (11) is two groups, a baffle (12) is fixedly arranged on one end of the telescopic rod (11), and the baffle (12) is arranged on one side of the discharge bin (7).

7. The yarn changing device of a double-sided circular knitting machine according to claim 6, characterized in that: The maximum telescopic length of the baffle (12) is less than half the width of the discharge bin (7), and the baffle (12) is made of a material with relatively high toughness.

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