A yarn drum chucking head structure of a yarn reversing machine
By combining the design of L-shaped plate, tube body, clamping mechanism and positioning mechanism, the problem of large space occupation and unstable fixation of existing yarn rewinding machine clamping equipment is solved, realizing stable fixation of yarn bobbins and adapting to the usage needs of different styles of yarn bobbins.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG SHEPHERD INC
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-05
AI Technical Summary
Existing yarn rewinding machines have problems with clamping devices that occupy a lot of space and are not securely fixed when fixing yarn bobbins. In particular, the cylinder clamping method is affected by the stability of air pressure, which makes the yarn bobbins easy to loosen.
The design employs a combination of L-shaped plate, tube body, clamping mechanism and positioning mechanism. Through the cooperation of collar and abutment rod, the screw drives the moving block and pull rope to achieve multi-point fixation of the yarn tube, thereby enhancing the fixing effect.
It achieves stable fixation of different types of yarn bobbins, reduces space occupation, improves the fixing effect, and adapts to the usage needs of different styles of yarn bobbins.
Smart Images

Figure CN224324927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of yarn rewinding machine technology, specifically a yarn bobbin clamping head structure for a yarn rewinding machine. Background Technology
[0002] A yarn rewinding machine is a textile device used to rewind bobbins or skeins into different shapes of cones. Common types of yarn cones used in yarn rewinding machines are conical yarn cones and ordinary cylindrical yarn cones. When the yarn cone is fixed to the yarn rewinding machine for winding, it is usually fixed by clamping equipment. Conventional clamping equipment mostly fixes the yarn cone at both ends. However, since clamping structures are set at both ends of the yarn cone, the overall space occupied is large. The existing clamping head cylinder clamping method only clamps the yarn cone at one end. However, the output force of the cylinder is also affected by the stability of air pressure, which in turn affects the yarn cone and makes it easy for the yarn cone to be not firmly fixed, which is inconvenient. Utility Model Content
[0003] The purpose of this utility model is to provide a yarn bobbin clamping head structure for a yarn rewinding machine to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A yarn bobbin clamping head structure for a yarn rewinding machine includes:
[0006] The device includes an L-shaped plate that can be connected to the machine body, a tube, a locking mechanism for fixing the yarn bobbin, and a positioning mechanism. One end of the short arm of the L-shaped plate has a sleeve hole. One end of the tube is fixedly fitted with a connecting tube, which is rotatably fitted inside the sleeve hole. One end of the connecting tube is fixedly connected to a limit plate. Multiple cutting grooves are formed on the outer wall of the tube. The locking mechanism is located inside the tube and includes a fixing tube, one end of which is fixedly connected to one end of the connecting tube. Two collars are slidably fitted onto the outer wall of the fixing tube. Multiple abutments are provided on one side of each collar. Each pair of abutments corresponds to a cutting groove. One end of each abutment is rotatably connected between opposite sides of the corresponding cutting groove. The other end of each abutment is rotatably connected to a support arm, one end of which is rotatably connected to the outer wall of the adjacent collar. The positioning mechanism is located between the two collars.
[0007] Furthermore, the positioning mechanism includes:
[0008] The connecting block and two guide rods are located between the two collars. One end of each guide rod is rotatably connected to the adjacent side of the two collars, and the other end of each guide rod is rotatably connected to both ends of the connecting block.
[0009] Furthermore, the outer wall of the fixed tube is provided with a sliding groove, and both collars are slidably engaged inside the sliding groove.
[0010] Furthermore, the outer wall of the fixed tube is provided with a slot, and a block is slidably engaged inside the slot. A sliding rod is fixedly connected to the top surface of the block, and a sliding hole is provided on the top surface of the connecting block, with the sliding rod slidably sleeved inside the sliding hole.
[0011] Furthermore, a connecting cylinder is fixedly connected to one side of the limiting plate on the connecting pipe, and a moving block is slidably sleeved inside the connecting cylinder. A screw is rotatably connected to one side of the limiting plate, and a threaded hole is opened on one side of the moving block, and the threaded hole is screwed into the screw. A pull rope is fixedly connected to one side of the moving block, and a connecting ring is fixedly connected to one end of the locking block. One end of the pull rope passes through the limiting plate and the connecting ring in sequence and is then fixedly connected to the connecting block.
[0012] Furthermore, the threaded hole is located near the outer ring edge of the moving block.
[0013] Furthermore, one end of the slide rod is located inside a cutting groove on the tube body.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By fitting a conical or ordinary yarn bobbin onto the tube body, and then rotating the screw to move the moving block, the moving block pulls the rope, causing the connecting block to move down along the slide rod. This causes the connecting block to move away from two collars through adjacent guide rods, and the two collars drive adjacent abutment rods to rotate through adjacent support arms. The other end of the abutment rods then contacts the inner wall of the yarn bobbin to fix it. When one collar and its adjacent abutment rod contact the inner wall of the yarn bobbin, the locking block can slide inside the guide groove as the connecting block moves. The connecting block continues to move, causing the other collar to continue moving until the other collar and its adjacent abutment rod contact the inner wall of the yarn bobbin. This method can fix different types of yarn bobbins and improve the fixing effect. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the L-shaped plate and the rotating pipe structure in this utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the tube body in this utility model;
[0019] Figure 4 This is an exploded view of the positioning mechanism structure in this utility model.
[0020] In the diagram: 100, L-shaped plate; 200, pipe body; 210, connecting pipe; 300, locking mechanism; 310, fixing pipe; 320, collar; 330, abutment rod; 331, support arm; 400, positioning mechanism; 410, connecting block; 420, guide rod; 430, locking block; 431, sliding rod; 440, connecting cylinder; 441, screw; 442, moving block; 443, pull rope. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 In this embodiment of the present invention, a yarn bobbin clamping head structure for a yarn rewinding machine includes an L-shaped plate 100 that can be connected to the machine body, a tube 200, a clamping mechanism 300 for fixing the yarn bobbin, and a positioning mechanism 400. One end of the short arm of the L-shaped plate 100 has a sleeve hole. One end of the tube 200 is fixedly sleeved with a connecting tube 210, which is rotatably sleeved inside the sleeve hole. A limit plate is fixedly connected to one end of the connecting tube 210. Multiple cutting grooves are provided on the outer wall of the tube 200. The clamping mechanism 300 is located inside the tube 200 and includes a fixing tube 310. One end of the fixed tube 310 is fixedly connected to one end of the connecting tube 210. Two collars 320 are slidably sleeved on the outer wall of the fixed tube 310. Multiple abutments 330 are provided on one side of each collar 320. Multiple abutments 330 on one side of any collar 320 correspond one-to-one with multiple cutting grooves. One end of any abutment 330 is rotatably connected between the opposite sides of the corresponding cutting groove. The other end of any abutment 330 is rotatably connected to a support arm 331. One end of any support arm 331 is rotatably connected to the outer wall of the adjacent collar 320. The positioning mechanism 400 is located between the two collars 320.
[0023] Specifically, by fixing the L-shaped plate 100 to the machine body, the long arm of the L-shaped plate 100 can be welded with components that connect to the machine body. In use, a conical yarn tube or a regular yarn tube is fitted onto the tube body 200, so that one end of the yarn tube rests against the short arm of the L-shaped plate 100 to keep the yarn tube straight. Then, by sliding two opposing collars 320, when any collar 320 moves, it drives the other end of the adjacent abutment rod 330 to rotate through the adjacent support arm 331. This causes the other ends of multiple abutment rods 330 adjacent to any collar 320 to move away from the fixing tube 310 simultaneously until the other ends of multiple abutment rods 330 touch the inner wall of the yarn tube and lock the yarn tube in place. When the yarn tube rotates, it can drive the tube body 200 to rotate synchronously, thereby fixing different styles of yarn tubes and making it easy for users to use. A rubber coating layer can be provided at the other end of the abutment rod 330 to increase the friction between the abutment rod 330 and the inner wall of the yarn tube, making it less likely for the yarn tube to fall off the abutment rod 330.
[0024] Example 1
[0025] like Figure 3-4 As shown, in this embodiment, the positioning mechanism 400 includes:
[0026] The connecting block 410 and two guide rods 420 are located between two collars 320. One end of each guide rod 420 is rotatably connected to the adjacent side of each collar 320, and the other end of each guide rod 420 is rotatably connected to both ends of the connecting block 410. The outer wall of the fixing tube 310 is provided with a sliding groove, and both collars 320 are slidably engaged in the sliding groove. The outer wall of the fixing tube 310 is provided with a slot, and a locking block 430 is slidably engaged in the slot. A sliding rod 431 is fixedly connected to the top surface of the locking block 430. A sliding hole is provided on the top surface of the connecting block 410, and the sliding rod 431 is slidably engaged in the sliding hole.
[0027] In this embodiment, by moving the connecting block 410, the connecting block 410 moves away from the two collars 320 through the guide rod 420. This causes the collars 320 to rotate through the support arm 331, causing the adjacent abutment rods 330 to contact the inner wall of the yarn tube and fix the yarn tube. When the connecting block 410 moves, it can only slide vertically due to the limitation of the sliding rod 431 and is not easy to deviate. This makes the rotation angle of the two adjacent guide rods 420 synchronized when the connecting block 410 moves. For example, when fixing a tapered yarn tube, after the abutment rod 330 adjacent to one collar 320 contacts the inner wall of the yarn tube, one collar 320 is difficult to continue sliding. The connecting block 410 continues to move and will move itself towards the other collar 320, and continue to move through the guide rod 420 to contact the other collar 320 until the abutment rod 330 adjacent to the other collar 320 contacts the inner wall of the yarn tube. This makes the two collars 320 move different distances, which can fix the tapered yarn tube.
[0028] like Figure 3-4As shown, in this embodiment, a connecting cylinder 440 is fixedly connected to one side of the limiting plate on the connecting pipe 210, and a moving block 442 is slidably sleeved inside the connecting cylinder 440. A screw 441 is rotatably connected to one side of the limiting plate. A threaded hole is opened on one side of the moving block 442, and the threaded hole is screwed into the screw 441. A pull rope 443 is fixedly connected to one side of the moving block 442. A connecting ring is fixedly connected to one end of the locking block 430, and one end of the pull rope 443 passes through the limiting plate and the inside of the connecting ring in sequence before being fixedly connected to the connecting block 410. The threaded hole is close to the outer ring edge of the moving block 442.
[0029] In practical implementation, since the screw 441 is not located at the center of the moving block 442, the rotation of the screw 441 can drive the moving block 442 to slide inside the connecting cylinder 440. The moving block 442 pulls the pull rope 443, causing the pull rope 443 to pull the connecting block 410 down, which is convenient for users. In addition, when carrying out automation transformation, a charging motor can be installed on the connecting cylinder 440 to drive the screw 441 to rotate, or an electric push rod can be installed on the machine body, and the moving block 442 can be rotatably connected to the movable end of the electric push rod, so that the electric push rod can drive the moving block 442 to move. The pull rope 443 can be made of materials such as metal wire that are not easily deformed, so that the connecting block 410 is not easy to move naturally after being pulled down and positioned, thereby improving the fixing effect on the yarn bobbin.
[0030] Example 2
[0031] Based on Embodiment 1, the height of the slide bar 431 is limited to prevent the connecting block 410 from protruding from the tube body 200.
[0032] like Figure 2-3 As shown, in this embodiment, one end of the slide bar 431 is located inside a cutting groove on the tube body 200.
[0033] In practice, since the slide bar 431 does not protrude from the outer wall of the tube 200, the connecting block 410 is less likely to protrude from the outer wall of the tube 200 when sliding along the slide bar 431, thus making the outer wall of the tube 200 smoother and easier to fit into the yarn tube.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that 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, and 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 bobbin clamping head structure for a yarn rewinding machine, characterized in that, include: L-shaped plate (100), with a sleeve hole at one end of the short arm; The tube body (200) has a connecting tube (210) fixedly sleeved at one end. The connecting tube (210) is rotatably sleeved inside the sleeve hole, and a limit plate is fixedly connected to one end of the connecting tube (210). Multiple cutting grooves are opened on the outer wall of the tube body (200). The locking mechanism (300) is located inside the tube body (200). The locking mechanism (300) includes a fixed tube (310), and one end of the fixed tube (310) is fixedly connected to one end of the connecting tube (210). Two collars (320) are slidably sleeved on the outer wall of the fixed tube (310). Multiple abutments (330) are provided on one side of each collar (320). Multiple abutments (330) on one side of any collar (320) correspond one-to-one with multiple cutting grooves. One end of any abutment (330) is rotatably connected between the opposite sides of the corresponding cutting groove. The other end of any abutment (330) is rotatably connected to a support arm (331). One end of any support arm (331) is rotatably connected to the outer wall of the adjacent collar (320). The positioning mechanism (400) is located between the two collars (320).
2. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 1, characterized in that, The positioning mechanism (400) includes: A connecting block (410) is located between the two collars (320); Two guide rods (420) are rotatably connected at one end to the adjacent side of two collars (320), and the other ends of the two guide rods (420) are rotatably connected to both ends of the connecting block (410).
3. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 2, characterized in that, The outer wall of the fixed tube (310) is provided with a sliding groove, and both collars (320) are slidably engaged inside the sliding groove.
4. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 3, characterized in that, The outer wall of the fixed tube (310) is provided with a slot, and a block (430) is slidably engaged inside the slot. A sliding rod (431) is fixedly connected to the top surface of the block (430). A sliding hole is provided on the top surface of the connecting block (410), and the sliding rod (431) is slidably sleeved inside the sliding hole.
5. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 4, characterized in that, One end of the slide bar (431) is located inside a cutting groove on the tube body (200).
6. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 4 or 5, characterized in that, A connecting cylinder (440) is fixedly connected to one side of the limiting plate on the connecting pipe (210), and a moving block (442) is slidably sleeved inside the connecting cylinder (440). A screw (441) is rotatably connected to one side of the limiting plate. A threaded hole is opened on one side of the moving block (442), and the threaded hole is screwed into the screw (441). A pull rope (443) is fixedly connected to one side of the moving block (442). A connecting ring is fixedly connected to one end of the locking block (430), and one end of the pull rope (443) passes through the limiting plate and the connecting ring in sequence before being fixedly connected to the connecting block (410).
7. The yarn bobbin clamping head structure of the yarn rewinding machine according to claim 6, characterized in that, The threaded hole is located near the outer ring edge of the moving block (442).