A yarn rack of a large circular knitting machine for fabric production

Abstract

The utility model provides a yarn frame of large -round machine for fabric production, this yarn frame of large -round machine for fabric production, including installation portion and a plurality of fixed parts, the yarn cylinder is placed on the placement part by the upside -down, drives the placement part to move to the fixed part, the fixed part of the most lower part can insert yarn cylinder in, make the adjustment part drive fixed part to carry out state regulation, adjust fixed part from the storage state to the fixed state, the fixed part can fix yarn cylinder at this moment, make the placement part reset, place yarn cylinder on the placement part again, and drive fixed part to rotate, whenever by a fixed part rotates to yarn cylinder top, need not the worker manual installation fixed yarn cylinder, can effectively improve the security of worker, and can prevent yarn cylinder to rotate when fixing yarn cylinder, thereby avoid the yarn to shake when working, and then influence the quality of product.

Description

Technical Field

[0001] This utility model relates to the field of yarn frame technology, specifically a yarn frame for a circular knitting machine used in fabric production. Background Technology

[0002] The yarn holder of a circular knitting machine is an important component of the yarn supply mechanism. It primarily holds yarn bobbins, providing a continuous and uniform yarn supply for the knitting process. It generally consists of a frame and yarn fixing devices. The frame typically includes horizontal and vertical bars. The horizontal bars have components for fixing the yarn bobbins, while the vertical bars support and fix the horizontal bars and can be equipped with adjustment components to adjust the height of the horizontal bars. Yarn fixing devices come in various forms; a common one involves a folding plate fitted onto the horizontal bar, with thin and thick bobbin fixing rods inserted into the folding plate to secure yarn bobbins of different sizes.

[0003] However, existing yarn racks, while securing the yarn bobbins, only prevent them from detaching from the yarn. Completely fixing the yarn bobbins causes them to sway under the influence of the yarn during operation. This swaying, in turn, leads to more intense yarn movement, impacting production efficiency and quality. Summary of the Invention

[0004] The purpose of this invention is to provide a yarn holder for a circular knitting machine used in fabric production, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: A yarn frame for a circular knitting machine for fabric production, comprising an installation part and several fixing parts: the fixing parts are circumferentially fixedly installed on the installation part, and the installation part serves to install and fix the fixing parts, and the fixing parts have two states: fixed and stored; the fixing part includes a fixing frame installed on the installation part, two U-shaped frames are rotatably connected inside the fixing frame, the bottom ends of the two U-shaped frames are rotatably connected to fixed wheels, rotating plates are rotatably connected inside each of the two U-shaped frames, mounting rods are slidably connected inside each of the two rotating plates, and universal wheels are rotatably connected to the bottom ends of the two mounting rods; a limit rod is provided at the top of the fixing frame; an adjustment part is provided inside the fixing frame for driving the two fixed wheels and universal wheels to rotate outward.

[0006] In a further preferred embodiment, the mounting part includes a base that can be fixed to the ground, a support plate that is fixedly connected to the base, a rotating box that is rotatably connected to the top of the support plate, an mounting ring that is fixedly connected to the outer ring of the rotating box through a fixing post, and a fixing bracket that is fixedly connected to the outer ring of the mounting ring.

[0007] In a further preferred embodiment, the adjusting part includes a lifting column slidably connected within the fixed frame. An external threaded cylinder is internally threaded onto the lifting column. The top end of the external threaded cylinder is rotatably connected to the inner top wall of the fixed frame. The bottom end of the external threaded cylinder passes through the fixed frame and the mounting ring in sequence and extends to the inner ring of the mounting ring. A pull rod is provided inside the external threaded cylinder, and the top end of the pull rod extends to the top end of the fixed frame and is rotatably connected to a limiting rod. The bottom end of the pull rod passes through the rotating box and extends into the interior of the rotating box. A limiting groove is formed on the surface of the external threaded cylinder, and a limiting block is slidably connected within the limiting groove. A rotating ring is rotatably connected to the surface of the pull rod, and the limiting block is fixedly connected to the rotating ring. An mounting plate is hinged to the top end of the mounting rod, and the mounting plate is sleeved on the surface of the external threaded cylinder and rotatably connected to the limiting block.

[0008] Further preferably, the rotating box is equipped with a drive unit for driving the pull rod to move up and down.

[0009] In a further preferred embodiment, the drive unit includes a rolling wheel rotatably connected to the bottom end of the pull rod, a mounting block is fixedly connected to the surface of the pull rod and the mounting block is located inside the rotating box, an elastic reset member is sleeved on the surface of the pull rod, and the two ends of the elastic reset member are fixedly connected to the inner ring of the rotating box and the mounting block respectively, a rotating disk is rotatably connected inside the rotating box, and the surface of the rolling wheel abuts against the rotating disk, and a U-shaped groove is formed on the surface of the pull rod.

[0010] Further preferred, the elastic reset element is a spring.

[0011] In a further preferred embodiment, the support plate is provided with a placement part, which is located directly below the rotating box. The yarn bobbin can be placed upside down on the placement part and can be driven to move up and down.

[0012] In a further preferred embodiment, the placement part includes a groove formed in the support plate, a slider is slidably connected in the groove, a lead screw is threadedly connected in the slider, a placement plate is fixedly connected to the front of the slider, and a placement hole is formed in the placement plate.

[0013] The beneficial effects of this utility model are: Place the yarn spool upside down on the placement part and drive the placement part to move towards the fixing part. The fixing part at the bottom can then be inserted into the yarn spool. The adjustment part drives the fixing part to adjust its state from the storage state to the fixed state. At this time, the fixing part can fix the yarn spool, allowing the placement part to reset. Place the yarn spool back on the placement part and drive the fixing part to rotate. Repeat the above operation each time a fixing part rotates to the top of the yarn spool, thus fixing the yarn spool to each fixing part. In summary, this method can easily fix the yarn spool without requiring manual installation by workers, effectively improving worker safety. Furthermore, it prevents the yarn spool from rotating during fixing, thus avoiding yarn shaking during work and affecting product quality. Attached Figure Description

[0014] Figure 1 This is a front view of a specific embodiment of this utility model.

[0015] Figure 2 This is a partial structural cross-sectional view taken from the front in a specific embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the fixing part in a specific embodiment of this utility model.

[0017] Figure 4 This is a specific embodiment of the present utility model. Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0018] Figure 5 This is a specific embodiment of the present utility model. Figure 3 Enlarged schematic diagram of the structure at point B.

[0019] Figure 6 This is a specific embodiment of the present utility model. Figure 2 Enlarged schematic diagram of the structure at point C.

[0020] In the diagram: 11. Base; 12. Support plate; 13. Rotating box; 14. Mounting ring; 21. Fixing frame; 22. U-shaped frame; 23. Fixing wheel; 24. Rotating plate; 25. Mounting rod; 26. Caster wheel; 27. Limiting rod; 31. Lifting column; 32. External threaded cylinder; 33. Pull rod; 34. Limiting groove; 35. Limiting block; 36. Rotating ring; 37. Mounting plate; 331. Rolling wheel; 332. Mounting block; 333. Elastic reset component; 334. Rotating disk; 335. U-shaped groove; 41. Slide groove; 42. Slider; 43. Lead screw; 44. Placement plate; 45. Placement hole. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] like Figure 1-6As shown, a yarn rack for a circular knitting machine used in fabric production includes an mounting section and several fixing sections. The fixing sections are circumferentially fixedly mounted on the mounting section. The mounting section serves to install and fix the fixing sections. The fixing sections have two states: fixed and retracted. In the retracted state, yarn bobbins can be easily loaded and unloaded. In the fixed state, the fixing sections are used to fix the yarn bobbins. The fixing section includes a fixing frame 21 mounted on the mounting section. Two U-shaped frames 22 are rotatably connected inside the fixing frame 21. Fixed wheels 23 are rotatably connected to the bottom ends of the two U-shaped frames 22. Rotating plates 24 are rotatably connected inside each of the two U-shaped frames 22. Mounting rods 25 are slidably connected to the bottom ends of the two mounting rods 25. Universal wheels are rotatably connected to the bottom ends of the two mounting rods 25. 26. A limiting rod 27 is provided at the top of the fixing frame 21. When the fixing wheel 23 is inside the fixing frame 21, the limiting rod 27 is tilted, which is the storage state. At this time, the yarn bobbin is placed on the surface of the fixing frame 21, and the limiting rod 27 is above the yarn bobbin. Then, the two fixing wheels 23 and the universal wheel 26 are driven to rotate outward so that they abut against the inner wall of the yarn bobbin. At this time, the limiting rod 27 is horizontal and abuts against the top of the yarn bobbin, which is the fixed state. This can fix the yarn bobbin and prevent the yarn bobbin from rotating during operation, causing the yarn to shake. The fixing frame 21 is provided with an adjustment part to drive the two fixing wheels 23 and the universal wheel 26 to rotate outward, so that it can fix the yarn bobbin more conveniently.

[0023] like Figure 1 and Figure 2 As shown, the mounting part includes a base 11 that can be fixed to the ground. A support plate 12 is fixedly connected to the base 11. A rotating box 13 is rotatably connected to the top of the support plate 12. An installation ring 14 is fixedly connected to the outer ring of the rotating box 13 through a fixing post. A fixing frame 21 is fixedly connected to the outer ring of the installation ring 14, so that the fixing frame 21 can be easily installed and fixed. The position of the fixing frame 21 can be adjusted by rotating the rotating box 13 and the installation ring 14. This not only allows for proper tensioning of the yarn, but also, when the yarn spool is used up, by rotating the fixing frame 21, the yarn spool is rotated to the bottom of the rotating box 13 and the installation ring 14. Then, the fixing part is adjusted to the storage state, and the yarn spool can be easily detached from the fixing frame 21, thus facilitating the replacement of the yarn spool.

[0024] like Figure 3-5As shown, the adjustment unit includes a lifting column 31 slidably connected to the fixed frame 21. An external threaded cylinder 32 is threadedly connected to the lifting column 31. The top end of the external threaded cylinder 32 is rotatably connected to the inner top wall of the fixed frame 21. The bottom end of the external threaded cylinder 32 passes through the fixed frame 21 and the mounting ring 14 sequentially and extends to the inner ring of the mounting ring 14. A pull rod 33 is provided inside the external threaded cylinder 32, and the top end of the pull rod 33 extends to the top end of the fixed frame 21 and is rotatably connected to a limiting rod 27. The bottom end of the pull rod 33 passes through the rotating box 13 and extends into the interior of the rotating box 13. A limiting groove 34 is formed on the surface of the external threaded cylinder 32, and a limiting block 35 is slidably connected within the limiting groove 34. A rotating ring 36 is rotatably connected to the surface of the pull rod 33, and the limiting block 35 is fixedly connected to the rotating ring 36. A mounting plate 37 is hinged to the top end of the mounting rod 25, and the mounting plate 37 is sleeved on the surface of the external threaded cylinder 32 and rotatably connected to the limiting block 35. First, the external threaded cylinder is driven... When the external threaded cylinder 32 rotates, it drives the lifting column 31 to move upward. The upward movement of the lifting column 31 then pushes the U-shaped frame 22 and the fixed wheel 23 to rotate outward, so that the fixed wheel 23 can come into contact with the yarn bobbin. Then, it drives the pull rod 33 to move downward. The movement of the pull rod 33 can push the mounting rod 25 and the universal wheel 26 downward through the limiting block 35, the rotating ring 36 and the mounting plate 37. Then, during the movement, the universal wheel 26 can rotate outward due to the limitation of the mounting plate 37, so that the universal wheel 26 comes into contact with the yarn bobbin. At the same time, when the pull rod 33 moves downward, it can pull the limiting rod 27 downward. Then, the limiting rod 27 will be horizontal at the top of the yarn bobbin, so that the fixed wheel 23 and the universal wheel 26 can be easily driven to rotate outward to move the yarn bobbin, and the limiting rod 27 can be driven to be horizontal at the top of the yarn bobbin to position the yarn bobbin.

[0025] like Figure 1 and Figure 6 As shown, the rotating box 13 is equipped with a drive unit for driving the pull rod 33 to move up and down, thereby enabling the pull rod 33 to easily drive the limit rod 27 and the mounting plate 37 to move. The drive unit includes a rolling wheel 331 rotatably connected to the bottom end of the pull rod 33. A mounting block 332 is fixedly connected to the surface of the pull rod 33, and the mounting block 332 is located inside the rotating box 13. An elastic reset member 333 is sleeved on the surface of the pull rod 33, and the two ends of the elastic reset member 333 are fixedly connected to the inner ring of the rotating box 13 and the mounting block 332, respectively. The elastic reset member 333 is a spring. A rotating disk 334 is rotatably connected inside the rotating box 13, and the surface of the rolling wheel 331 abuts against the rotating disk 334. A U-shaped groove 335 is opened on the surface of the pull rod 33. First, the rotating disk 334 is driven to rotate. When the U-shaped groove 335 rotates to a position that coincides with the rolling wheel 331, the rolling wheel 331 will move toward the rotating disk 334 under the action of the elastic reset member 333, thereby enabling the pull rod 33 to move toward the rotating disk 334, thus facilitating the lifting and lowering of the pull rod 33.

[0026] like Figure 1 and Figure 2 As shown, a placement part is provided on the support plate 12. The placement part is located directly below the rotating box 13. The yarn bobbin can be placed upside down on the placement part and the yarn bobbin can be driven to rise and fall, so that the yarn bobbin can be easily sleeved and fixed on the fixing part. The placement part includes a groove 41 formed in the support plate 12. A slider 42 is slidably connected in the groove 41. A lead screw 43 is threadedly connected in the slider 42. A placement plate 44 is fixedly connected to the front of the slider 42. A placement hole 45 is formed in the placement plate 44. First, the yarn bobbin is placed upside down in the placement hole 45. When the fixing part is rotated to be directly below the mounting ring 14, the yarn bobbin is located directly below the fixing part. Then, the lead screw 43 is activated, causing the lead screw 43 to rotate and drive the slider 42 and the placement plate 44 to move toward the fixing part. Then, the movement of the placement plate 44 can drive the yarn bobbin to move. At this time, the fixing part can be inserted into the inside of the yarn bobbin. Then, the fixing part is adjusted to a fixed state. Finally, the placement plate 44 is moved downward. At this time, the yarn bobbin can be sleeved and fixed on the fixing part. Therefore, it is not necessary for the workers to manually fix the yarn bobbin to the fixing part, which prevents the yarn from causing injury to the workers during work and effectively improves the safety of the workers.

[0027] First, place the yarn spool upside down on the placement part. Then, drive the placement part to move towards the fixing part. The fixing part at the bottom can then be inserted into the yarn spool. Next, activate the adjustment part to drive the fixing part to adjust its state from the storage state to the fixed state. At this time, the fixing part can fix the yarn spool. Then, reset the placement part and place the yarn spool on the placement part again, and drive the fixing part to rotate. Repeat the above operation each time a fixing part rotates to the top of the yarn spool, thus fixing the yarn spool to each fixing part. In summary, this method can easily fix the yarn spool without the need for manual installation and fixing by workers, effectively improving worker safety. Furthermore, it can prevent the yarn spool from rotating during fixing, thereby avoiding yarn shaking during work and affecting product quality.

[0028] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A yarn rack for a circular knitting machine used in fabric production, characterized in that, It includes an installation part and several fixing parts: the fixing parts are circumferentially fixedly installed on the installation part, and the installation part plays the role of installing and fixing the fixing parts. The fixing parts have two states: fixed and stored. The fixing part includes a fixing frame (21) installed on the mounting part. Two U-shaped frames (22) are rotatably connected inside the fixing frame (21). Fixed wheels (23) are rotatably connected to the bottom ends of the two U-shaped frames (22). Rotating plates (24) are rotatably connected inside the two U-shaped frames (22). Mounting rods (25) are slidably connected inside the two rotating plates (24). Universal wheels (26) are rotatably connected to the bottom ends of the two mounting rods (25). A limit rod (27) is provided at the top of the fixing frame (21). Adjustment section: located inside the fixed frame (21), used to drive the two fixed wheels (23) and the universal wheels (26) to rotate outward.

2. The yarn frame of a circular knitting machine for fabric production according to claim 1, characterized in that, The mounting section includes a base (11) that can be fixed on the ground, a support plate (12) that is fixedly connected to the base (11), a rotating box (13) that is rotatably connected to the top of the support plate (12), an mounting ring (14) that is fixedly connected to the outer ring of the rotating box (13) by a fixing post, and a fixing bracket (21) that is fixedly connected to the outer ring of the mounting ring (14).

3. The yarn frame of a circular knitting machine for fabric production according to claim 1, characterized in that, The adjustment unit includes a lifting column (31) slidably connected to the fixed frame (21). An external threaded cylinder (32) is threadedly connected to the lifting column (31). The top end of the external threaded cylinder (32) is rotatably connected to the inner top wall of the fixed frame (21). The bottom end of the external threaded cylinder (32) passes through the fixed frame (21) and the mounting ring (14) in sequence and extends to the inner ring of the mounting ring (14). A pull rod (33) is provided inside the external threaded cylinder (32), and the top end of the pull rod (33) extends to the top end of the fixed frame (21) and is rotatably connected to the limiting rod (27). The bottom end of the pull rod (33) passes through the rotating box (13) and extends into the interior of the rotating box (13). A limiting groove (34) is opened on the surface of the external threaded cylinder (32). A limiting block (35) is slidably connected in the limiting groove (34). A rotating ring (36) is rotatably connected to the surface of the pull rod (33), and the limiting block (35) is fixedly connected to the rotating ring (36). A mounting plate (37) is hinged to the top of the mounting rod (25), and the mounting plate (37) is sleeved on the surface of the external threaded cylinder (32) and rotatably connected to the limiting block (35).

4. The yarn frame of a circular knitting machine for fabric production according to claim 3, characterized in that, The rotating box (13) is equipped with a drive unit for driving the pull rod (33) to move up and down.

5. The yarn frame of a circular knitting machine for fabric production according to claim 4, characterized in that, The drive unit includes a rolling wheel (331) rotatably connected to the bottom end of the pull rod (33). A mounting block (332) is fixedly connected to the surface of the pull rod (33), and the mounting block (332) is located inside the rotating box (13). An elastic reset member (333) is sleeved on the surface of the pull rod (33), and the two ends of the elastic reset member (333) are fixedly connected to the inner ring of the rotating box (13) and the mounting block (332) respectively. A rotating disk (334) is rotatably connected inside the rotating box (13), and the surface of the rolling wheel (331) abuts against the rotating disk (334). A U-shaped groove (335) is opened on the surface of the pull rod (33).

6. The yarn frame of a circular knitting machine for fabric production according to claim 5, characterized in that, The elastic reset element (333) is a spring.

7. The yarn frame of a circular knitting machine for fabric production according to claim 2, characterized in that, The support plate (12) is provided with a placement part, which is located directly below the rotating box (13). The yarn bobbin can be placed upside down on the placement part and can be driven to move up and down.

8. The yarn frame of a circular knitting machine for fabric production according to claim 7, characterized in that, The placement part includes a groove (41) opened in the support plate (12), a slider (42) is slidably connected in the groove (41), a screw (43) is threadedly connected in the slider (42), a placement plate (44) is fixedly connected to the front of the slider (42), and a placement hole (45) is opened in the placement plate (44).

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