A yarn feeding mechanism for a large circular knitting machine

Abstract

This utility model discloses a yarn feeding mechanism for a circular knitting machine, including a mounting frame, a movable block mounted on the mounting frame, and several mounting holes on the movable block. A guide ring is installed within each mounting hole, and a limit ring is connected to one end of the guide ring. The outer diameter of the limit ring is larger than the diameter of the mounting hole, and the limit ring fits snugly against one side of the movable block. Several notches are formed on the outer periphery of the portion of the guide ring extending beyond the mounting hole. A limit mechanism is provided on the side of the movable block away from the limit ring. This utility model can change the contact position between the guide ring and the yarn to extend the service life of the guide ring.

Description

Technical Field

[0001] This utility model relates to the field of circular knitting equipment technology, and more specifically, to a yarn feeding nozzle mechanism for a large circular knitting machine. Background Technology

[0002] A circular knitting machine is a type of knitting machine used in textile processes. The yarn feed nozzle, mounted above the needle cylinder, guides the yarn into the needles on the cylinder, primarily guiding the direction of yarn input. To prevent direct contact between the yarn and the feed nozzle, a guide ring is often installed inside the nozzle, through which the yarn passes directly. The contact point between the guide ring and the yarn can be damaged due to friction, affecting normal operation and necessitating replacement of the feed nozzle, thus shortening its lifespan. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a yarn feeding mechanism for a large circular knitting machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a yarn feeding nozzle mechanism for a large circular knitting machine, including a mounting frame, a movable block mounted on the mounting frame, a plurality of mounting holes on the movable block, a guide ring mounted in the mounting holes, a limit ring connected to one end of the guide ring, the outer diameter of the limit ring being larger than the diameter of the mounting hole, the limit ring fitting against one side of the movable block, a plurality of slots being formed on the outer periphery of the portion of the guide ring extending out of the mounting hole, a limit mechanism being provided on the side of the movable block away from the limit ring, the limit mechanism including an insert block, the end of the insert block being able to be inserted into the slot.

[0006] Furthermore, the limiting mechanism includes a mounting base, which has a mounting cavity. An insert block is installed in the mounting cavity, with the inner end of the insert block extending out of the mounting base. A spring is installed in the mounting cavity, with one end of the spring connected to the end of the insert block located in the mounting cavity, and the other end of the spring connected to the side wall of the mounting cavity.

[0007] Furthermore, a guide hole is provided on the upper part of the mounting base, which is connected to the mounting cavity. A lever is connected to the upper part of the insert block, and the lever passes through the guide hole.

[0008] Furthermore, a limiting hole is provided at one end of the insert block located inside the mounting cavity, and a limiting rod is connected inside the mounting cavity, with part of the limiting rod located inside the limiting hole.

[0009] Furthermore, a lead screw is rotatably mounted inside the mounting frame, a lead screw slider is mounted on the lead screw, a moving block is mounted on the lead screw slider, and a drive mechanism for driving the lead screw to rotate is also provided on the mounting frame.

[0010] Furthermore, a side plate is connected to the side of the mounting frame away from the moving block. A mounting block is installed on the upper part of the side plate. A mounting groove is opened in the side plate. The end of the fixed block extends into the mounting groove and is connected to a driven bevel gear. The drive mechanism includes a rotating rod, which is rotatably disposed in the side plate. The rotating rod is perpendicular to the lead screw. One end of the rotating rod is located in the mounting groove and is connected to a driving bevel gear. The driving bevel gear meshes with the driven bevel gear. The other end of the rotating rod passes through the side plate and is connected to a ratchet.

[0011] Furthermore, an anti-accidental contact mechanism is installed on the side of the side plate. The anti-accidental contact mechanism can fix the ratchet. The anti-accidental contact mechanism includes a guide seat installed on the side of the side plate. A limit pin is inserted in the guide seat. The end of the limit pin near the ratchet can be inserted between the teeth of the ratchet. The end of the limit pin away from the ratchet is connected to a lever. A spring is connected between the lever and the guide seat.

[0012] Furthermore, a fixing block is connected to the upper part of the mounting block, and a fixing hole is opened in the fixing block.

[0013] The beneficial effects of this utility model are: it can change the installation angle of the guide ring, thereby changing the contact position between the guide ring and the yarn, which can avoid scratches caused by long-term contact and increase the service life of the guide ring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the yarn feeding nozzle mechanism of the circular knitting machine in this embodiment;

[0015] Figure 2 This is a cross-sectional view of the moving block in this embodiment;

[0016] Figure 3 This is a partial structural diagram of the yarn feeding nozzle mechanism of the circular knitting machine in this embodiment;

[0017] Figure 4 This is a schematic diagram of one structure of the anti-accidental touch mechanism in this embodiment.

[0018] Reference numerals: 1. Mounting frame; 2. Lead screw; 3. Fixing block; 4. Lead screw slider; 5. Moving block; 6. Mounting hole; 7. Guide ring; 8. Limiting ring; 9. Bayonet; 10. Mounting seat; 11. Mounting cavity; 12. Insert block; 13. Guide hole; 14. Limiting hole; 15. Toggle lever; 16. Limiting lever; 17. Spring 1; 18. Spring 2; 19. Driven bevel gear; 20. Rotating rod; 21. Driving bevel gear; 22. Mounting groove; 23. Ratchet; 24. Rotating wheel; 25. Mounting block; 26. Fixing hole; 27. Guide seat; 28. Limiting pin; 29. ​​Toggle block; 30. Side plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1-4 As shown, a yarn feeding mechanism for a large circular knitting machine includes a mounting frame 1, on which a movable block 5 is mounted. The movable block 5 has several mounting holes 6, and a guide ring 7 is installed within each mounting hole 6. One end of the guide ring 7 is connected to a limiting ring 8, the outer diameter of which is larger than the diameter of the mounting hole 6. The limiting ring 8 fits against one side of the movable block 5. Several notches 9 are formed on the outer periphery of the portion of the guide ring 7 that extends beyond the mounting hole 6. A limiting mechanism is provided on the side of the movable block 5 away from the limiting ring 8, which can fix the guide ring 7. The mounting frame 1 is mounted on a yarn frame, and the yarn passes through the guide ring 7. During the process of the yarn passing through the guide ring 7, it will contact the inner wall of the guide ring 7. Prolonged contact of the yarn with the same position on the inner wall of the guide ring 7 may scratch the inner wall. By rotating the guide ring 7 within the mounting hole 6 and then re-fixing it through the limiting mechanism, the position of contact between the inner wall of the guide ring 7 and the yarn can be changed, allowing the guide ring 7 to continue to be used.

[0021] The limiting mechanism includes a mounting base 10, within which a mounting cavity 11 is formed. A plug 12 is installed within the mounting cavity 11, with its inner end extending out of the mounting base 10. A spring 17 is installed within the mounting cavity 11, with one end of the spring 17 connected to the end of the plug 12 located within the mounting cavity 11, and the other end connected to the side wall of the mounting cavity 11. Under the action of the spring 17, the end of the plug 12 can be inserted into the corresponding slot 9 within the guide ring 7. The engagement of the plug 12 and the slot 9 restricts the rotation of the guide ring 7. Furthermore, its engagement with the limiting ring 8 restricts the axial movement of the guide ring 7, thus completing the fixation of the guide ring 7.

[0022] The upper part of the mounting base 10 has a guide hole 13, which is connected to the mounting cavity 11. The guide hole 13 is set along the length of the mounting base 10. The upper part of the insert block 12 is connected to a lever 15, which passes through the guide hole 13. The lever 15 can easily drive the insert block 12 to move.

[0023] The insertion block 12 has a limiting hole 14 at one end inside the mounting cavity 11. A limiting rod 16 is connected inside the mounting cavity 11. Part of the limiting rod 16 is located inside the limiting hole 14. The limiting hole 14 and the limiting rod 16 are both set along the length direction of the mounting base 10. The cooperation between the limiting rod 16 and the limiting hole 14 is used to limit the movement of the insertion block 12 along the length direction of the mounting base 10, so as to prevent the insertion block 12 from deflecting during movement.

[0024] The two sides of the insert 12 near the guide ring 7 are chamfered, which makes it easier for the end of the insert 12 to be inserted into the bayonet 9.

[0025] A lead screw 2 is rotatably mounted inside the mounting frame 1, and a lead screw slider 4 is mounted on the lead screw 2. A moving block 5 is mounted on the lead screw slider 4. The mounting frame 1 also has a drive mechanism for driving the lead screw 2 to rotate. A side plate 30 is connected to the side of the mounting frame 1 away from the moving block 5. A mounting block 25 is mounted on the upper part of the side plate 30. A mounting groove 22 is opened in the side plate 30. The end of the fixed block 3 extends into the mounting groove 22 and is connected to a driven bevel gear 19. The drive mechanism includes a rotating rod 20 rotatably mounted in the side plate 30. The rotating rod 20 is perpendicular to the lead screw 2. One end of the rotating rod 20 is located in the mounting groove 22 and is connected to a drive bevel gear 21. The drive bevel gear 21 meshes with the driven bevel gear 19. By rotating the rotating rod 20, the drive bevel gear 21 is driven to rotate. The drive bevel gear 21, through its engagement with the driven bevel gear 19, drives the lead screw 2 to rotate, thereby moving the lead screw slider 4, thus adjusting the position of the moving block 5. This allows for easy adjustment of the guide ring 7 according to the actual usage requirements of the large circular knitting machine.

[0026] To prevent accidental activation of the rotating rod 20 during use, which could lead to incorrect adjustment of the guide ring 7, an anti-accidental activation mechanism is installed on the side of the side plate 30. This mechanism secures the ratchet 23 and includes a guide seat 27 mounted on the side of the side plate 30. A limiting pin 28 passes through the guide seat 27. The other end of the rotating rod 20 extends out of the side plate 30 and is connected to the ratchet 23. A lever 29 is connected to the end of the limiting pin 28 away from the ratchet 23. A spring 28 connects the lever 29 and the guide seat 27. Under normal conditions, the limiting pin 28, under the action of the driven bevel gear 19, is inserted between the teeth of the ratchet 23, thus restricting the rotation of the ratchet 23 and consequently the rotating rod 20. When the position of the guide ring 7 needs to be adjusted, the limiting pin 28 is pulled outward by the lever 29, causing the end of the limiting pin 28 to disengage from the teeth of the ratchet 23, releasing the restriction on the ratchet 23. At this point, the rotating rod 20 can be rotated.

[0027] A rotating wheel 24 is connected to the side of the ratchet 23 away from the rotating rod 20. Several anti-slip grooves are provided on the outer periphery of the rotating wheel 24. The grooves increase the friction of the rotating wheel 24, making it easier for the operator to rotate the rotating rod 20.

[0028] The mounting block 25 is connected to a fixing block 3 on its upper part. The fixing block 3 has a fixing hole 26 inside, and the fixing block 3 is fixed to the yarn frame through the fixing hole 26.

[0029] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A yarn feeding mechanism for a large circular knitting machine, characterized in that, The device includes a mounting frame (1), on which a movable block (5) is mounted. The movable block (5) has several mounting holes (6). A guide ring (7) is installed in the mounting hole (6). One end of the guide ring (7) is connected to a limiting ring (8). The outer diameter of the limiting ring (8) is larger than the diameter of the mounting hole (6). The limiting ring (8) is in contact with one side of the movable block (5). Several slots (9) are opened on the outer periphery of the part of the guide ring (7) that protrudes from the mounting hole (6). A limiting mechanism is provided on the side of the movable block (5) away from the limiting ring (8). The limiting mechanism includes an insert (12). The end of the insert (12) can be inserted into the slot (9).

2. The yarn feeding mechanism of a large circular knitting machine according to claim 1, characterized in that, The limiting mechanism includes a mounting base (10), a mounting cavity (11) is provided in the mounting base (10), a plug (12) is installed in the mounting cavity (11), the inner end of the plug (12) extends out of the mounting base (10), a spring (17) is provided in the mounting cavity (11), one end of the spring (17) is connected to one end of the plug (12) located in the mounting cavity (11), and the other end of the spring (17) is connected to the side wall of the mounting cavity (11).

3. The yarn feeding mechanism of a large circular knitting machine according to claim 2, characterized in that, The mounting base (10) has a guide hole (13) on its upper part, which is connected to the mounting cavity (11). The upper part of the insert (12) is connected to a lever (15), which passes through the guide hole (13).

4. The yarn feeding mechanism of a large circular knitting machine according to claim 2, characterized in that, The insert (12) has a limiting hole (14) at one end inside the mounting cavity (11), and a limiting rod (16) is connected inside the mounting cavity (11), with part of the limiting rod (16) located inside the limiting hole (14).

5. The yarn feeding mechanism of a large circular knitting machine according to any one of claims 1-4, characterized in that, A lead screw (2) is rotatably disposed inside the mounting frame (1), a lead screw slider (4) is mounted on the lead screw (2), a moving block (5) is mounted on the lead screw slider (4), and a driving mechanism for driving the lead screw (2) to rotate is also provided on the mounting frame (1).

6. The yarn feeding mechanism of a large circular knitting machine according to claim 5, characterized in that, The mounting frame (1) is connected to a side plate (30) on the side away from the moving block (5). A mounting block (25) is mounted on the upper part of the side plate (30). A fixing block (3) is connected to the upper part of the mounting block (25). A fixing hole (26) is opened in the fixing block (3). A mounting groove (22) is opened in the side plate (30). The end of the fixing block (3) extends into the mounting groove (22) and is connected to a driven bevel gear (19). The driving mechanism includes a rotating rod (20). The rotating rod (20) is rotatably disposed in the side plate (30). The rotating rod (20) is perpendicular to the lead screw (2). One end of the rotating rod (20) is located in the mounting groove (22) and is connected to a driving bevel gear (21). The driving bevel gear (21) meshes with the driven bevel gear (19). The other end of the rotating rod (20) passes through the side plate (30) and is connected to a ratchet (23).

7. The yarn feeding mechanism of a large circular knitting machine according to claim 6, characterized in that, An anti-accidental touch mechanism is installed on the side of the side plate (30). The anti-accidental touch mechanism can fix the ratchet (23). The anti-accidental touch mechanism includes a guide seat (27) installed on the side of the side plate (30). A limiting pin (28) is inserted in the guide seat (27). The end of the limiting pin (28) near the ratchet (23) can be inserted between the teeth of the ratchet (23). The end of the limiting pin (28) away from the ratchet (23) is connected to a lever (29). A spring (18) is connected between the lever (29) and the guide seat (27).

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