A yarn feeding device for a circular knitting machine for polylactic acid fabric

Abstract

The utility model relates to knitting circular knitting machine technical field, concretely relates to a knitting circular knitting machine's yarn feeding device for polylactic acid fabric, including transmission pipe, one side of transmission pipe outer wall installs the connecting plate, yarn disc holder is installed to the other end of connecting plate, the one side of yarn disc holder outer wall is installed and arranges multiple yarn disc columns, one side of transmission pipe inside arranges and embeds and installs multiple wire branch pipes, transmission pipe outer wall other side close to bottom end place embeds and installs the air pump interface, the top of transmission pipe rotatably connects with movable sleeve, the top of movable sleeve rotatably connects with connecting sleeve, the top both ends of connecting sleeve all embeds and installs wire branch pipe, and the movable sleeve and transmission pipe are installed with linkage reset mechanism, the utility model discloses simple structure, convenient operation, and the staff is convenient for in time guiding the conveyance of the cotton group and yarn that jam, further improved the practicality of device and yarn's conveying efficiency.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting machine technology, specifically to a yarn feeding device for a circular knitting machine for polylactic acid fabrics. Background Technology

[0002] Jacquard circular knitting machines, also known as circular weft knitting machines, have seen rapid development due to their numerous loop-forming systems (referred to in industry as yarn feed paths or loop formation paths, or simply paths), high speed, high output, rapid pattern changes, good fabric quality, fewer processes, and strong product adaptability. Because of their circular structure, jacquard circular knitting machines require yarn to be introduced from all directions. Therefore, their corresponding yarn feed structures must be able to transport yarn from all sides. However, due to space limitations within the workshop, existing yarn feed structures often result in yarn filling the entire workshop, making yarn reconnection after a break extremely inconvenient and severely impacting work efficiency.

[0003] To address the aforementioned technical problems, Chinese Patent No. CN205954240U discloses a yarn feeding structure for a jacquard circular knitting machine, comprising an annular fixed frame, multiple transmission tubes on the outside of the fixed frame, a yarn tray frame on the outside of each transmission tube, and multiple yarn tray columns distributed on the yarn tray frame; multiple inlet branch pipes are provided on the transmission tubes; multiple outlet branch pipes are connected to the top of the transmission tubes, one end of the outlet branch pipes is connected to the transmission tubes, and the other end is fixed to the fixed frame; the end of the outlet branch pipe fixed to the fixed frame has its opening facing downwards, and a conveyor roller fixed to the fixed frame is provided below the opening.

[0004] While the aforementioned existing technical solutions can solve the problem of complex yarn layout and facilitate yarn continuation operations, the cotton clumps bound to the yarn ends are very likely to get stuck at the angle formed by the rotating disc, the inner wall of the transmission tube, and the lower limit ring when the yarn is blown. However, the transmission tube is a closed structure, and once the cotton clumps get stuck, it is difficult for the staff to correct and guide the yarn to reset in time, which in turn affects the efficiency of subsequent work. Utility Model Content

[0005] The purpose of this utility model is to provide a yarn feeding device for a circular knitting machine for polylactic acid fabrics, in order to solve the problem mentioned in the background art that when the yarn feeding device blows the yarn, the cotton ball bound at the end of the yarn is very easy to get stuck at the angle formed by the rotating disk, the inner wall of the transmission tube and the lower limit ring. However, the transmission tube is a closed setting, and once the cotton ball gets stuck, it is difficult for the operator to correct and guide the yarn back to its original position in time, which affects the subsequent work efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A yarn feeding device for a circular knitting machine for polylactic acid fabrics includes a transmission tube, a connecting plate installed on one side of the outer wall of the transmission tube, a yarn tray frame embedded at the other end of the connecting plate, multiple sets of yarn tray columns arranged on one side of the outer wall of the yarn tray frame, multiple sets of inlet branch pipes arranged and embedded on one side of the inside of the transmission tube, an air pump interface embedded near the bottom of the other side of the outer wall of the transmission tube, a movable sleeve rotatably connected to the top of the transmission tube, a connecting sleeve rotatably connected to the top of the movable sleeve, and outlet branch pipes embedded at both ends of the top of the connecting sleeve. A linkage reset mechanism is installed on the movable sleeve and the transmission tube. The linkage reset mechanism includes a linkage component and a reset component. The linkage component is used to adjust the position of the movable sleeve, and the reset component is used to reset the yarn stuck at the corner.

[0008] As a preferred embodiment of this utility model, the linkage component includes a connecting rod installed on one side of the outer wall of the connecting sleeve, the other end of the connecting rod being fixedly connected to one side of the connecting plate, a first motor being installed at one top end of the connecting plate, a first gear being installed at the drive end of the first motor, and a gear ring being installed on the outer wall of the connecting sleeve, the gear ring being meshed with the first gear.

[0009] As a preferred embodiment of this utility model, a first fixing seat is installed at one end of the inner wall of the connecting sleeve, and the inner ends of the first fixing seat are provided with outlet holes corresponding to the outlet branch pipe ports. A second fixing seat is installed on one side of the inner wall of the movable sleeve, and a guide groove is provided at one end of the second fixing seat. An observation window is embedded in the outer wall of the transmission pipe near the movable sleeve.

[0010] As a preferred embodiment of this utility model, the reset assembly includes a placement plate installed on the other side of the outer wall of the transmission pipe, an adjusting cylinder installed on one side of the placement plate, a threaded rod rotatably connected to one end of the inner side of the adjusting cylinder, an adjusting plate threadedly connected to the outer side of the threaded rod, the adjusting plate being slidably connected to the adjusting groove, a handle rotatably connected to one end of the outer wall of the adjusting cylinder, and one end of the handle extending into the inner side of the adjusting groove and fixedly connected to one end of the threaded rod.

[0011] As a preferred embodiment of this utility model, a pusher seat is installed at the other end of the adjusting plate, and a pusher groove is provided on one side of the outer wall of the transmission pipe, which is slidably connected to the pusher seat. A sealing ring that fits against the outer wall of the pusher seat is embedded at one end of the inner wall of the pusher groove.

[0012] As a preferred embodiment of this utility model, an operating rod is slidably connected to one end of the pusher seat, and a groove is formed at the other end of the outer wall of the pusher seat. A docking groove is formed on one side of the groove inside the pusher seat. A docking block is rotatably connected to one end of the operating rod. Limiting grooves are formed on both sides of the inner wall of the groove inside the pusher seat. A limiting plate is slidably connected to the inner side of the limiting groove. A movable rod is rotatably connected to one end of the inner wall of the groove. Clamping plates are fixedly sleeved on both ends of the outer wall of the movable rod. The two sets of clamping plates are staggered. An arc-shaped spring is installed between one side of the outer wall of the clamping plate and the inner wall of the groove.

[0013] As a preferred embodiment of this utility model, an insert plate is installed at one end of the outer wall of the operating rod, a positioning seat is installed on the other side of the inner wall of the docking groove, a slot for sliding connection with the insert plate is opened on one side of the positioning seat, and inclined surfaces are opened at the opposite ends of the docking block and the two sets of clamping plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a linkage component is used to adjust the position of the movable sleeve, and a reset component is used to reset the yarn stuck at the corner. The structure is simple and easy to operate, which makes it convenient for workers to guide and transport the stuck cotton balls and yarns in a timely manner, further improving the practicality of the device and the yarn conveying efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the transmission tube structure of this utility model;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the adjusting cylinder and the sliding seat of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the movable sleeve and connecting sleeve of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the pusher seat of this utility model.

[0020] In the diagram: 1. Transmission pipe; 2. Connecting plate; 3. Yarn tray frame; 4. Yarn tray column; 5. Inlet branch pipe; 6. Movable sleeve; 7. Connecting sleeve; 8. Outlet branch pipe; 9. Air pump interface; 10. First motor; 11. First gear; 12. Gear ring; 13. First fixed seat; 14. Second fixed seat; 15. Adjusting cylinder; 16. Threaded rod; 17. Adjusting plate; 18. Push seat; 19. Sealing ring; 20. Operating rod; 21. Observation window; 22. Connecting block; 23. Limiting plate; 24. Movable rod; 25. Clamping plate; 26. Arc spring; 27. Insert plate; 28. Positioning seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Example: Please refer to Figures 1-4 This utility model provides a technical solution:

[0023] A yarn feeding device for a circular knitting machine for polylactic acid fabrics includes a transmission pipe 1, a connecting plate 2 installed on one side of the outer wall of the transmission pipe 1, a yarn tray frame 3 embedded at the other end of the connecting plate 2, multiple sets of yarn tray columns 4 arranged on one side of the outer wall of the yarn tray frame 3, multiple sets of inlet branch pipes 5 arranged and embedded on one side of the inner wall of the transmission pipe 1, and an air pump interface 9 embedded near the bottom end on the other side of the outer wall of the transmission pipe 1. A movable sleeve 6 is rotatably connected to the top of the transmission pipe 1, and a connecting sleeve 7 is rotatably connected to the top of the movable sleeve 6. Outlet branch pipes 8 are embedded at both ends of the top of the connecting sleeve 7. A linkage reset mechanism is installed on the movable sleeve 6 and the transmission pipe 1. The linkage reset mechanism includes a linkage component and a reset component. The linkage component is used to adjust the position of the movable sleeve 6, and the reset component is used to reset the yarn stuck at the corner. When using this device, the position of the movable sleeve 6 can be adjusted by the linkage component, and the reset component can reset the yarn stuck at the corner. The structure is simple and easy to operate, which facilitates the timely guidance and conveying of stuck cotton balls and yarns by the operator, further improving the practicality of the device and the yarn conveying efficiency.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the linkage component includes a connecting rod installed on one side of the outer wall of the connecting sleeve 7. The other end of the connecting rod is fixedly connected to one side of the connecting plate 2. A first motor 10 is installed on one top end of the connecting plate 2. A first gear 11 is installed on the drive end of the first motor 10. A gear ring 12 is installed on the outer wall of the connecting sleeve 7. The gear ring 12 and the first gear 11 are meshed. First, the yarn spool is inserted into the yarn spool post 4. Then, the end of the yarn is tied with a cotton ball and inserted into the inside of the transmission pipe 1 through the inlet branch pipe 5. Then, the output end of the external air pump is connected to the air pump interface 9. Then, the air pump is started to blow air, which can blow the cotton ball up and carry the end of the yarn through the guide groove and the outlet hole into the inside of the outlet branch pipe 8, and finally deliver it to the outside of the outlet branch pipe 8.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a first fixing seat 13 is installed at one end of the inner wall of the connecting sleeve 7. Both ends of the first fixing seat 13 are provided with outlet holes corresponding to the ports of the outlet branch pipes 8. A second fixing seat 14 is installed on one side of the inner wall of the movable sleeve 6. A guide groove is provided at one end of the second fixing seat 14. An observation window 21 is embedded in the outer wall of the transmission pipe 1 near the movable sleeve 6. Then, the first motor 10 is started to drive the first gear 11 to rotate, thereby driving the gear ring 12 that meshes with it to rotate, so that the movable sleeve 6 drives the second fixing seat 14 to rotate, aligning the port of the guide groove with the bottom of another set of outlet holes, so that the yarn is discharged from the inside of another set of outlet branch pipes 8.

[0026] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the reset assembly includes a placement plate mounted on the other side of the outer wall of the transmission pipe 1. An adjusting cylinder 15 is mounted on one side of the placement plate. A threaded rod 16 is rotatably connected to one end of the inner side of the adjusting cylinder 15. An adjusting plate 17 is threadedly connected to the outer side of the threaded rod 16. The adjusting plate 17 is slidably connected to the adjusting groove. A handle is rotatably connected to one end of the outer wall of the adjusting cylinder 15. One end of the handle extends into the inner side of the adjusting groove and is fixedly connected to one end of the threaded rod 16. A pusher seat 18 is mounted on the other end of the adjusting plate 17. A pusher seat 18 is slidably connected to the pusher seat 18 on one side of the outer wall of the transmission pipe 1. The inner wall of the sliding groove is fitted with a sealing ring 19 that fits against the outer wall of the sliding seat 18. Furthermore, when the staff observes the observation window 21 and finds that the cotton ball is stuck at the angle between the second fixed seat 14 and the inner wall of the transmission pipe 1, they can hold the handle and rotate the threaded rod 16. With the help of the adjusting plate 17 and the adjusting groove, the sliding seat 18 can be moved inside the sliding groove. The fit of the sealing ring 19 can ensure the sealing effect until the clamping plate 25 is pushed from the sliding groove into the inner side of the transmission pipe 1. The yarn can slide into the space between the two sets of clamping plates 25 along the slope between the two sets of clamping plates 25.

[0027] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, an operating rod 20 is slidably connected to one end of the push seat 18. A groove is formed on the other end of the outer wall of the push seat 18. A docking groove is formed on one side of the groove inside the push seat 18. A docking block 22 is rotatably connected to one end of the operating rod 20. Limiting grooves are formed on both sides of the inner wall of the groove inside the push seat 18. A limiting plate 23 is slidably connected to the inner side of the limiting groove. A movable rod 24 is rotatably connected to one end of the inner wall of the groove. Clamping plates 25 are fixedly fitted on both ends of the outer wall of the movable rod 24. The two sets of clamping plates 25 are staggered. An arc spring 26 is installed between one side of the outer wall of the clamping plate 25 and the inner wall of the groove. An insert plate 27 is installed on one end of the outer wall of the operating rod 20. A positioning seat 28 is installed on the other side of the inner wall of the docking groove. A slot is formed on one side of the positioning seat 28 that is slidably connected to the insert plate 27. The opposite ends of the docking block 22 and the two sets of clamping plates 25 are connected to the groove. Both are provided with inclined surfaces. Furthermore, pressing the operating rod 20 causes the docking block 22 to enter the inner side of the groove and abut against the outer wall of the other end of the two sets of clamping plates 25. The close contact of the inclined surfaces forces the two sets of clamping plates 25 to rotate in opposite directions around the movable rod 24. The limiting plate 23 slides inside the limiting groove and causes the clamping plates 25 to compress the arc spring 26 and retract. After the clamping plates 25 clamp the yarn, the operating rod 20 is rotated at the same time. The slot is directly opened on the side surface of the positioning seat 28. The insertion plate 27 can be pushed directly into the slot from one side of the positioning seat 28 and engage with the slot by rotating around the center of the operating rod 20. At this time, the clamping plate 25 is kept in the clamping state. Then, by holding the handle and rotating it, the yarn can be moved closer to the end of the guide groove. At this time, twisting the operating rod 20 will pull the operating rod 20, allowing the yarn to rise with the airflow and continue to be conveyed.

[0028] The implementation principle of the yarn feeding device for a circular knitting machine for polylactic acid fabric in this application embodiment is as follows: A yarn spool is inserted into the yarn spool post 4. Then, a cotton ball is tied to the end of the yarn, and the yarn is inserted into the inside of the transmission pipe 1 through the inlet branch pipe 5. Next, the output end of an external air pump is connected to the air pump interface 9. The air pump is then started to blow air, which blows the cotton ball, carrying the yarn end, through the guide groove and the outlet hole into the inside of the outlet branch pipe 8, and finally transports it to the outside of the outlet branch pipe 8. Then, the first motor 10 is started to drive the... The rotation of the first gear 11 drives the meshing gear ring 12 to rotate, causing the movable sleeve 6 to rotate the second fixed seat 14, aligning the port of the guide groove with the bottom of another set of outlet holes, allowing the yarn to be discharged from the inside of another set of outlet branch pipes 8. When the operator checks the observation window 21 and finds that the cotton ball is blocked at the angle between the second fixed seat 14 and the inner wall of the transmission pipe 1, they can hold the handle and rotate the threaded rod 16. With the help of the adjusting plate 17 and the adjusting groove, the pusher seat 18 can be moved in the pusher groove. The inward movement and the contact of the sealing ring 19 ensure a sealing effect until the clamping plate 25 is pushed from the pushing groove into the inner side of the transmission pipe 1. The yarn can slide into the space between the two sets of clamping plates 25 along the slope. Then, press the operating rod 20 to make the mating block 22 enter the groove and abut against the outer wall of the other end of the two sets of clamping plates 25. The close contact of the slope forces the two sets of clamping plates 25 to rotate in opposite directions around the movable rod 24. The limiting plate 23 slides inside the limiting groove and makes the clamping plate 25 compress the arc spring 26. After the clamping plate 25 retracts and holds the yarn, the operating lever 20 is rotated simultaneously. The slot is directly opened on the side surface of the positioning seat 28. The insertion plate 27 rotates around the center of the operating lever 20 so that it can be pushed directly from one side of the positioning seat 28 into the slot and engage with the slot. At this time, the clamping plate 25 is kept in the clamping state. Then, by holding the handle and rotating it, the yarn can be moved closer to the end of the guide groove. At this time, by twisting the operating lever 20, the operating lever 20 will be pulled, allowing the yarn to rise with the airflow and continue to be conveyed.

[0029] The control method of this utility model is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A yarn feeding device for a circular knitting machine for polylactic acid fabrics, comprising a conveying tube (1), characterized in that: A connecting plate (2) is installed on one side of the outer wall of the transmission pipe (1), and a yarn tray frame (3) is embedded at the other end of the connecting plate (2). Multiple yarn tray columns (4) are arranged on one side of the outer wall of the yarn tray frame (3). Multiple inlet branch pipes (5) are arranged and embedded on one side of the inside of the transmission pipe (1). An air pump interface (9) is embedded near the bottom on the other side of the outer wall of the transmission pipe (1). A movable sleeve (6) is rotatably connected to the top of the transmission pipe (1). A connecting sleeve (7) is rotatably connected to the top of the movable sleeve (6). Outlet branch pipes (8) are embedded at both ends of the top of the connecting sleeve (7). A linkage reset mechanism is installed on the movable sleeve (6) and the transmission pipe (1). The linkage reset mechanism includes a linkage component and a reset component. The linkage component is used to adjust the position of the movable sleeve (6), and the reset component is used to reset the yarn stuck at the corner.

2. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 1, characterized in that: The linkage component includes a connecting rod installed on one side of the outer wall of the connecting sleeve (7), the other end of the connecting rod being fixedly connected to one side of the connecting plate (2), a first motor (10) being installed at one top end of the connecting plate (2), a first gear (11) being installed at the drive end of the first motor (10), and a gear ring (12) being installed on the outer wall of the connecting sleeve (7), the gear ring (12) being meshed with the first gear (11).

3. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 2, characterized in that: A first fixing seat (13) is installed at one end of the inner wall of the connecting sleeve (7). Both ends of the first fixing seat (13) are provided with outlet holes corresponding to the outlet branch pipe (8) ports. A second fixing seat (14) is installed on one side of the inner wall of the movable sleeve (6). A guide groove is provided at one end of the second fixing seat (14). An observation window (21) is embedded in the outer wall of the transmission pipe (1) near the movable sleeve (6).

4. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 3, characterized in that: The reset assembly includes a placement plate installed on the other side of the outer wall of the transmission tube (1), an adjusting cylinder (15) installed on one side of the placement plate, a threaded rod (16) rotatably connected to one end of the inner side of the adjusting cylinder (15), an adjusting plate (17) threadedly connected to the outer side of the threaded rod (16), the adjusting plate (17) being slidably connected to the adjusting groove, a handle rotatably connected to one end of the outer wall of the adjusting cylinder (15), and one end of the handle extending to the inner side of the adjusting groove and fixedly connected to one end of the threaded rod (16).

5. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 4, characterized in that: The other end of the adjusting plate (17) is equipped with a pusher seat (18). A pusher groove is provided on one side of the outer wall of the transmission pipe (1) and is slidably connected to the pusher seat (18). A sealing ring (19) that fits against the outer wall of the pusher seat (18) is embedded in one end of the inner wall of the pusher groove.

6. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 5, characterized in that: An operating rod (20) is slidably connected to one end of the pusher seat (18). A groove is provided at the other end of the outer wall of the pusher seat (18). A docking groove is provided on one side of the groove inside the pusher seat (18). A docking block (22) is rotatably connected to one end of the operating rod (20). Limiting grooves are provided on both sides of the inner wall of the groove inside the pusher seat (18). A limiting plate (23) is slidably connected to the inner side of the limiting groove. A movable rod (24) is rotatably connected to one end of the inner wall of the groove. Clamping plates (25) are fixedly sleeved on both ends of the outer wall of the movable rod (24). The two sets of clamping plates (25) are staggered. An arc spring (26) is installed between one side of the outer wall of the clamping plate (25) and the inner wall of the groove.

7. The yarn feeding device for a circular knitting machine for polylactic acid fabrics according to claim 6, characterized in that: One end of the outer wall of the operating rod (20) is equipped with a plug plate (27), and the other side of the inner wall of the docking groove is equipped with a positioning seat (28). One side of the positioning seat (28) is provided with a slot that is slidably connected to the plug plate (27). The opposite ends of the docking block (22) and the two sets of clamping plates (25) are all provided with inclined surfaces.

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