Yarn feeding system of circular knitting machine

Abstract

The utility model relates to the technical field of circular knitting machines, and discloses a circular knitting machine yarn feeding system which comprises a machine body, a fixing frame is arranged on the upper side of the machine body, fixing plates are fixedly connected to the left side and the right side of the interior of the fixing frame, and a servo motor is fixedly connected to the bottom of the fixing plate on the right side. And the output end of the servo motor is fixedly connected with a driving gear, the bottoms of the two fixing plates are fixedly connected with the same hollow ring, the bottom end of the hollow ring is rotationally connected with a circular ring, and the interior of the circular ring is fixedly connected with a driven gear ring. According to the utility model, the servo motor can drive the driving gear to rotate, the driven gear ring can rotate along with the driving gear to drive the circular ring to rotate, at the moment, the movable column can move in the special-shaped hollow plate along with the rotation of the circular ring, and the sliding block at the bottom of the movable column can also move in the square frame along with the movable column; therefore, the yarn can be in a tensioned state all the time in the feeding process, and the subsequent gauze processing quality cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of circular knitting machines, in particular to a yarn feeding system for a circular knitting machine. Background Art

[0002] A circular knitting machine is a mechanical device for producing gauze. It manufactures gauze by interweaving yarns. The yarns are introduced into the weaving part from a yarn supply device, form the structure of the gauze through interweaving, and then the woven gauze is wound up by a fabric winding device.

[0003] Due to its high production efficiency and simple operation, the circular knitting machine has been widely used. And the yarn feeding system in the circular knitting machine is an indispensable part, and its performance will directly affect the product quality and production efficiency.

[0004] Most of the existing yarn feeding systems for circular knitting machines on the market usually adopt a simple mechanical transmission method, and realize the feeding of yarns through a series of rollers and yarn guides. However, this method is difficult to accurately control the tension of the yarns, easily causes problems such as yarn accumulation and breakage, thus affecting the processing quality of the subsequent gauze and not meeting the needs of users. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a yarn feeding system for a circular knitting machine, aiming to improve the problem that in the prior art, a yarn feeding system for a circular knitting machine is not convenient to control the yarn tension and easily causes yarn accumulation, affecting the processing quality of the subsequent gauze.

[0006] To achieve the above object, the utility model adopts the following technical scheme: A yarn feeding system for a circular knitting machine, including a machine body. A fixed frame is arranged on the upper side of the machine body. Fixing plates are fixedly connected to both the left and right sides inside the fixed frame. A servo motor is fixedly connected to the bottom of the right fixing plate. The output end of the servo motor is fixedly connected to a driving gear. The same hollow ring is fixedly connected to the bottom of the two fixing plates. The bottom end of the hollow ring is rotatably connected to a circular ring. A driven gear ring is fixedly connected to the inside of the circular ring. The driven gear ring is meshed with the driving gear. A plurality of special-shaped hollow plates are fixedly connected to the outer circumference of the circular ring at equal intervals. A movable column is slidably connected to the inside of the special-shaped hollow plate. A plurality of square frames are fixedly connected to the bottom circumference of the circular ring. A slider is slidably connected to the inside of the square frame. Limiting grooves are opened at the tops of the plurality of square frames. A connecting rod is fixedly connected to the top of the slider. The plurality of connecting rods respectively penetrate through the corresponding limiting grooves and are fixedly connected to the bottom end of the movable column. A fixing rod is fixedly connected to one side of the slider. One end of the fixing rod is fixedly connected to an arc-shaped plate. A disassembly mechanism is arranged on the outer side of the arc-shaped plate.

[0007] Through the above technical solution, the yarn can be kept in a tensioned state during the feeding process, so that the yarn is not prone to problems of accumulation and breakage, and thus will not affect the processing quality of the subsequent gauze.

[0008] As a further description of the above technical solution:

[0009] The disassembly mechanism includes a U-shaped frame and a yarn roller. A plurality of the U-shaped frames are respectively fixedly connected at equal intervals to one side of the corresponding arc-shaped plate. Rotating shafts are rotatably connected to both sides inside the two U-shaped frames. A groove is formed on one side of the rotating shaft. The two ends of the corresponding yarn roller are respectively slidably connected to the inside of the plurality of grooves. Limiting holes are formed on the upper and lower sides of the plurality of rotating shafts. Holes are formed at the upper and lower ends on the left and right sides of the plurality of yarn rollers. A spring is fixedly connected to one side inside the hole. One end of the spring is fixedly connected to a limiting rod. The plurality of limiting rods are respectively inserted into the corresponding limiting holes.

[0010] Through the above technical solution, when the yarn wound around the outside of the yarn roller is used up, it can be conveniently removed and replaced. The disassembly and replacement of the yarn roller are relatively simple, thereby improving the practicability of the device.

[0011] As a further description of the above technical solution:

[0012] First support rods are fixedly connected to both the left and right sides inside the machine body. The adjacent ends of the two first support rods are fixedly connected to the same hollow column. Second support rods are fixedly connected to the upper and middle parts of the outer wall of the hollow column on the left and right sides. The far ends of the two second support rods are respectively fixedly connected to the left and right sides inside the fixed frame.

[0013] Through the above technical solution, the fixed frame can be limited and fixed, thus facilitating the normal progress of subsequent work.

[0014] As a further description of the above technical solution:

[0015] Machine doors are arranged on both the left and right sides at the front end of the machine body. Hinges are arranged on the upper and lower sides at the front ends of the two machine doors. The two machine doors are respectively rotatably connected to the front side of the machine body through the hinges. Handles are rotatably connected to the front sides of the two machine doors.

[0016] Through the above technical solution, the staff can conveniently open the machine door to take out the woven gauze through the handle.

[0017] As a further description of the above technical solution:

[0018] Support frames are fixedly connected to both the left and right sides of the machine body. A controller is fixedly connected to the right end of the right support frame. The controller is electrically connected to the servo motor.

[0019] Through the above technical solution, the operation of the servo motor can be controlled.

[0020] As a further description of the above technical solution:

[0021] A protective cover is arranged on the outer side of the controller, and one side of the protective cover is rotatably connected to one side of the corresponding support frame.

[0022] Through the above technical solution, the controller can be made less vulnerable to damage, thereby improving the service life of the controller.

[0023] As a further description of the above technical solution:

[0024] Observation windows are arranged in the upper middle parts of the front sides of the two machine doors, and a plurality of heat dissipation holes are equidistantly opened on the front sides of the two machine doors.

[0025] Through the above technical solution, it is convenient for the staff to check the internal situation of the machine body at any time, and the opened heat dissipation holes can facilitate the discharge of the heat generated during the operation of the machine body.

[0026] As a further description of the above technical solution:

[0027] The sizes of the multiple limiting rods respectively match the internal sizes of the corresponding holes.

[0028] Through the above technical solution, the limiting rods can move more smoothly, thereby improving the practicability of the device.

[0029] The utility model has the following beneficial effects:

[0030] 1. In the utility model, the servo motor can drive the driving gear to rotate, the driven gear ring will rotate accordingly to drive the circular ring to rotate, at this time the movable column will move in the special-shaped hollow plate as the circular ring rotates, and the slider at the bottom of the movable column will also move in the square frame accordingly, so that the connecting rod can drive the arc-shaped plate to move around, thereby enabling the yarn to be in a tensioned state during the feeding process, making it difficult for the yarn to accumulate and break, and thus not affecting the subsequent processing quality of the gauze, and being able to meet the needs of users.

[0031] 2. In the utility model, by pressing the limiting rods on both sides, the springs will be compressed at this time and drive the limiting rods to disengage from the limiting holes and enter the holes, at this time the limiting and fixing of the yarn roller can be released, and when the yarn wound around the outer side of the yarn roller is used up, it can be conveniently removed and replaced. The disassembly and replacement of the yarn roller are relatively simple, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of a yarn feeding system for a circular knitting machine proposed by the utility model;

[0033] Figure 2 A structural sectional view of a yarn feeding system for a circular knitting machine proposed by the present utility model;

[0034] Figure 3 A partial structural schematic diagram of a yarn feeding system for a circular knitting machine proposed by the present utility model;

[0035] Figure 4 A partial structural disassembled view of a yarn feeding system for a circular knitting machine proposed by the present utility model;

[0036] Figure 5 A sectional view of a square frame structure of a yarn feeding system for a circular knitting machine proposed by the present utility model.

[0037] Legend:

[0038] 1. Machine body; 2. Disassembly mechanism; 201. U-shaped frame; 202. Rotating shaft; 203. Groove; 204. Limiting hole; 205. Yarn roller; 206. Hole; 207. Spring; 208. Limiting rod; 3. Fixed frame; 4. Fixed plate; 5. Servo motor; 6. Hollow ring; 7. Ring; 8. Driven gear ring; 9. Special-shaped hollow plate; 10. Movable column; 11. Square frame; 12. Slide block; 13. Connecting rod; 14. Fixed rod; 15. Limiting groove; 16. Arc-shaped plate; 17. First support rod; 18. Hollow column; 19. Second support rod; 20. Support frame; 21. Controller; 22. Protective cover; 23. Machine door; 24. Hinge; 25. Handle; 26. Heat dissipation hole; 27. Observation window; 28. Driving gear. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0040] Refer to Figure 2 、 Figure 3 and Figure 5, an embodiment provided by the present utility model: a yarn feeding system for a circular knitting machine, comprising a machine body 1, a fixed frame 3 is arranged on the upper side of the machine body 1, fixing plates 4 are fixedly connected to both the left and right sides inside the fixed frame 3, a servo motor 5 is fixedly connected to the bottom of the right fixing plate 4, the output end of the servo motor 5 is fixedly connected to a driving gear 28, the bottoms of the two fixing plates 4 are fixedly connected to the same hollow ring 6, the bottom end of the hollow ring 6 is rotatably connected to a circular ring 7, a driven gear ring 8 is fixedly connected to the inside of the circular ring 7, the driven gear ring 8 is meshed with the driving gear 28, a plurality of special-shaped hollow plates 9 are fixedly connected to the outer periphery of the circular ring 7 at equal intervals, a movable column 10 is slidably connected to the inside of the special-shaped hollow plate 9, a plurality of square frames 11 are fixedly connected to the bottom periphery of the circular ring 7, a slider 12 is slidably connected to the inside of the square frame 11, limiting grooves 15 are formed in the tops of the plurality of square frames 11, a connecting rod 13 is fixedly connected to the top of the slider 12, the plurality of connecting rods 13 respectively penetrate through the corresponding limiting grooves 15 and are fixedly connected to the bottom end of the movable column 10, a fixing rod 14 is fixedly connected to one side of the slider 12, an arc-shaped plate 16 is fixedly connected to one end of the fixing rod 14, a disassembly mechanism 2 is arranged on the outer side of the arc-shaped plate 16, first support rods 17 are fixedly connected to both the left and right sides inside the machine body 1, the adjacent ends of the two first support rods 17 are fixedly connected to the same hollow column 18, second support rods 19 are fixedly connected to both the upper and middle parts of the outer wall of the hollow column 18, and the far ends of the two second support rods 19 are respectively fixedly connected to the left and right sides inside the fixed frame 3;

[0041] Specifically, the driving gear 28 can be driven to rotate by the servo motor 5, and the driven gear ring 8 will rotate synchronously because it is meshed with the driving gear 28, thereby driving the connected circular ring 7 to rotate. As the circular ring 7 rotates, the movable column 10 will move along a predetermined trajectory in the special-shaped hollow plate 9. At the same time, the slider 12 at the bottom of the movable column 10 will slide synchronously in the square frame 11, and the connecting rod 13 on one side of the slider 12 will drive the corresponding arc-shaped plate 16 to move around, which can ensure that the yarn is always in a tensioned state during the feeding process, effectively avoiding the problems of yarn accumulation and breakage.

[0042] Refer to Figure 1 、 Figure 3 and Figure 4, the disassembly mechanism 2 includes a U-shaped frame 201 and a yarn roller 205. A plurality of U-shaped frames 201 are respectively fixedly connected at equal intervals to one side of the corresponding arc-shaped plate 16. Both sides inside two U-shaped frames 201 are rotatably connected with a rotating shaft 202. A groove 203 is opened on one side of the rotating shaft 202. The two ends of the corresponding yarn roller 205 are respectively slidably connected to the inside of a plurality of grooves 203. Limiting holes 204 are opened on the upper and lower sides of a plurality of rotating shafts 202. Holes 206 are opened at the upper and lower ends on the left and right sides of a plurality of yarn rollers 205. A spring 207 is fixedly connected to one side inside the hole 206. One end of the spring 207 is fixedly connected with a limiting rod 208. A plurality of limiting rods 208 are respectively inserted into the inside of the corresponding limiting holes 204. The sizes of a plurality of limiting rods 208 respectively match the sizes of the inside of the corresponding holes 206;

[0043] Specifically, when the yarn on one of the yarn rollers 205 is used up, at this time, press the limiting rods 208 on both sides, and the spring 207 will be squeezed accordingly, driving the limiting rod 208 to disengage from the limiting hole 204 and smoothly enter the hole 206. When the limiting rod 208 disengages from the limiting hole 204, the original limiting and fixing of the yarn roller 205 is released. At this time, the used-up yarn roller 205 can be removed and a new yarn roller 205 can be replaced. This design not only improves the practicability of the device, but also reduces the operation difficulty of workers. In practical applications, workers can complete the replacement of the yarn roller 205 more efficiently, thereby improving the production efficiency.

[0044] Refer to Figure 1 , machine doors 23 are provided on the left and right sides at the front end of the machine body 1. Hinges 24 are provided on the upper and lower sides at the front ends of the two machine doors 23. The two machine doors 23 are respectively rotatably connected to the front side of the machine body 1 through the hinges 24. Handles 25 are rotatably connected to the front sides of the two machine doors 23. Observation windows 27 are provided in the upper middle parts of the front sides of the two machine doors 23. A plurality of heat dissipation holes 26 are opened at equal intervals on the front sides of the two machine doors 23;

[0045] Specifically, the machine door 23 can be conveniently opened through the handle 25 to take out the woven gauze, and the provided observation window 27 can facilitate the staff to check the internal situation of the machine body 1 at any time. The opened heat dissipation holes 26 can facilitate the heat generated by the operation of the machine body 1 to be discharged.

[0046] Refer to Figure 1 , support frames 20 are fixedly connected to both sides of the machine body 1. A controller 21 is fixedly connected to the right end of the right support frame 20. The controller 21 is electrically connected to the servo motor 5. A protective cover 22 is arranged outside the controller 21. One side of the protective cover 22 is rotatably connected to one side of the corresponding support frame 20;

[0047] Specifically, the controller 21 can control the operation of the servo motor 5, and the provided protective cover 22 can protect the controller 21 from being damaged by external factors.

[0048] Working principle: When performing the yarn feeding operation, connect the hollow column 18 to the external transmission device. Through the external transmission device, the yarn can be introduced into the weaving mechanism to form gauze, and then the woven gauze can be wound up by the fabric winding device, which is convenient for subsequent processing and use. During the yarn feeding process, start the servo motor 5 at the same time. The servo motor 5 can drive the driving gear 28 to rotate. Since the driven gear ring 8 meshes with the driving gear 28, it will rotate accordingly and drive the ring 7 to rotate. At this time, the movable column 10 will move along the track in the special-shaped hollow plate 9 as the ring 7 rotates. The slider 12 at the bottom of the movable column 10 will also slide in the square frame 11 at the same time, so that the connecting rod 13 can drive the corresponding arc plate 16 to move around, and the tension of the yarn can be adjusted according to the needs of the user, so that it can be kept in a tensioned state during the feeding process, and the yarn is not prone to accumulation and breakage problems, and thus will not affect the subsequent processing quality of the gauze. And when the yarn on one of the yarn rollers 205 is used up, press the limit rods 208 on both sides. At this time, the force generated by the compression of the spring 207 will drive the limit rods 208 to disengage from the limit holes 204 and enter the holes 206. At this time, the limit fixation of the yarn roller 205 can be released, and it is relatively simple to disassemble and replace the yarn roller 205, thereby improving the practicability of the device.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circular knitting machine yarn feeding system, comprising a machine body (1), characterized in that: A fixing frame (3) is arranged on the upper side of the machine body (1). Fixing plates (4) are fixedly connected to both the left and right sides inside the fixing frame (3). A servo motor (5) is fixedly connected to the bottom of the right fixing plate (4). The output end of the servo motor (5) is fixedly connected to a driving gear (28). The same hollow ring (6) is fixedly connected to the bottom of the two fixing plates (4). The bottom end of the hollow ring (6) is rotatably connected to a circular ring (7). A driven gear ring (8) is fixedly connected to the inside of the circular ring (7). The driven gear ring (8) is meshed with the driving gear (28). A plurality of special-shaped hollow plates (9) are fixedly connected to the outer periphery of the circular ring (7) at equal intervals. An active column (10) is slidably connected to the inside of the special-shaped hollow plate (9). A plurality of square frames (11) are fixedly connected to the bottom periphery of the circular ring (7). A slider (12) is slidably connected to the inside of the square frame (11). A limiting groove (15) is opened at the top of each of the plurality of square frames (11). The top of the slider (12) is fixedly connected to a connecting rod (13). The respective plurality of connecting rods (13) penetrate through the corresponding limiting grooves (15) and are fixedly connected to the bottom end of the active column (10). A fixing rod (14) is fixedly connected to one side of the slider (12). One end of the fixing rod (14) is fixedly connected to an arc-shaped plate (16). A disassembly mechanism (2) is arranged on the outer side of the arc-shaped plate (16).

2. The yarn feeding system of a circular knitting machine according to claim 1, wherein: The disassembly mechanism (2) includes a U-shaped frame (201) and a yarn roller (205). A plurality of the U-shaped frames (201) are respectively fixedly connected to one side of the corresponding arc-shaped plate (16) at equal intervals. Rotating shafts (202) are rotatably connected to both sides inside the two U-shaped frames (201). A groove (203) is opened on one side of the rotating shaft (202). The two ends of the corresponding yarn roller (205) are respectively slidably connected to the inside of the plurality of grooves (203). Limiting holes (204) are opened on both the upper and lower sides of the plurality of rotating shafts (202). Holes (206) are opened at the upper and lower ends on both the left and right sides of the plurality of yarn rollers (205). A spring (207) is fixedly connected to one side inside the hole (206). One end of the spring (207) is fixedly connected to a limiting rod (208). The respective plurality of limiting rods (208) are inserted into the inside of the corresponding limiting holes (204).

3. The yarn feeding system for a circular knitting machine according to claim 1, characterized in that: First support rods (17) are fixedly connected to both the left and right sides inside the machine body (1). The adjacent ends of the two first support rods (17) are fixedly connected to the same hollow column (18). Second support rods (19) are fixedly connected to both the left and right sides of the middle upper part of the outer wall of the hollow column (18). The respective remote ends of the two second support rods (19) are fixedly connected to the left and right sides inside the fixing frame (3).

4. A large circular knitting machine yarn feeding system according to claim 1, characterized in that: Doors (23) are provided on the left and right sides of the front end of the body (1). Hinges (24) are provided on the upper and lower sides of the front ends of the two doors (23). The two doors (23) are respectively rotatably connected to the front side of the body (1) through the hinges (24). Handles (25) are rotatably connected to the front sides of the two doors (23).

5. The yarn feeding system of a circular knitting machine according to claim 1, characterized in that: Support frames (20) are fixedly connected to the left and right sides of the body (1). A controller (21) is fixedly connected to the right end of the right support frame (20). The controller (21) is electrically connected to the servo motor (5).

6. The large circular knitting machine yarn feeding system according to claim 5, wherein: A protective cover (22) is provided outside the controller (21). One side of the protective cover (22) is rotatably connected to one side of the corresponding support frame (20).

7. The yarn feeding system of a circular knitting machine according to claim 4, characterized in that: Observation windows (27) are provided in the upper middle parts of the front sides of the two doors (23). A plurality of heat dissipation holes (26) are equidistantly formed in the front sides of the two doors (23).

8. A yarn feeding system for a circular knitting machine according to claim 2, characterized in that: The sizes of the plurality of limiting rods (208) respectively match the internal sizes of the corresponding holes (206).

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