A spool with tensioning function

Abstract

This utility model relates to the field of yarn spool technology, and in particular to a yarn spool with a tensioning function, comprising a support rod and a take-up reel. A lower pressure roller is mounted on the surface of the support rod, and an upper pressure roller is disposed above the lower pressure roller. The upper pressure roller cooperates with the lower pressure roller to clamp the yarn. A spring is disposed above the upper pressure roller. An upper L-shaped plate is fixedly connected to the upper surface of the support rod. A threaded rod is inserted into a threaded hole on the surface of the upper L-shaped plate. The threaded rod, in cooperation with the spring, is used to change the force between the upper and lower pressure rollers. During the winding process, the clamping structure of the upper and lower pressure rollers can form a continuous and stable force on the yarn, keeping the yarn in a taut state at all times. This can effectively avoid problems such as loosening and tangling of the yarn during winding, ensuring that the yarn is tightly wound on the take-up reel. The force between the upper and lower pressure rollers can be easily adjusted by rotating the threaded rod.

Description

Technical Field

[0001] This utility model relates to the field of yarn spool technology, and in particular to a yarn spool with a tensioning function. Background Technology

[0002] In production operations across various fields such as textiles, electronics, construction, and packaging, spools serve as the core tool for winding and unwinding yarn (including textile yarn, wires, cables, ropes, etc.), and their performance directly determines the efficiency of related processes and the quality of finished products.

[0003] Traditional yarn spools typically consist of a support rod and a winding reel. This simple design reveals significant drawbacks in practical applications: during the winding process, the lack of a precise tension adjustment mechanism makes it difficult to control the winding force, easily leading to slack winding due to insufficient force. This slack directly affects subsequent processes, causing the yarn to become tangled and knotted during storage or reuse. This not only increases manual handling costs but may also result in material waste due to yarn damage.

[0004] When unwinding the yarn, the winding wheel is prone to uncontrolled rotation due to the pull of the yarn, resulting in excessive yarn release and a slack state, which can also cause problems such as tangling and knotting. These drawbacks severely restrict the continuity of production and the precision of operation, and can no longer meet the requirements of modern industry for efficient, stable and low-loss operation. Therefore, the structural optimization of traditional yarn spools is of urgent practical significance. Utility Model Content

[0005] To overcome the technical defects of the existing technology, this utility model provides a spool with tensioning function.

[0006] The technical solution adopted by this utility model is: a spool with tensioning function, including a support rod and a winding wheel. A lower pressure wheel is installed on the surface of the support rod, and an upper pressure wheel is arranged above the lower pressure wheel. The upper pressure wheel cooperates with the lower pressure wheel to clamp the wire. A spring is arranged above the upper pressure wheel. An upper L-shaped plate is fixedly connected to the upper surface of the support rod. A threaded rod is inserted into a threaded hole on the surface of the upper L-shaped plate. The threaded rod, in cooperation with the spring, is used to change the force between the upper and lower pressure wheels.

[0007] By adopting the above technical solution, the force can be adjusted to suit threads of different thicknesses and materials, ensuring that the threads always maintain appropriate tension during winding and avoiding slack or overstretching.

[0008] Preferably, a rotating shaft is fixedly connected to the surface of the support rod, and the winding wheel is sleeved on the surface of the rotating shaft, with the winding wheel and the rotating shaft being rotatably connected.

[0009] By adopting the above technical solution, the rotating connection structure enables the winding wheel to rotate flexibly, ensuring smooth winding and unwinding of the yarn and reducing yarn damage caused by rotation jamming.

[0010] Preferably, a lower L-shaped plate is fixedly connected to one side of the upper pressure roller, an inner plate is provided between the lower L-shaped plate and the upper L-shaped plate, a spring is fixedly connected between the inner plate and the lower L-shaped plate, and the bottom end of the threaded rod is rotatably connected to the inner plate through a bearing.

[0011] By adopting the above technical solution, the structure enables the rotational motion of the threaded rod to be stably converted into the lifting motion of the inner plate, and then the force is precisely transmitted to the lower L-shaped plate through the spring, so as to achieve smooth adjustment of the pressure of the upper pressure roller.

[0012] Preferably, two longitudinal rods are fixedly connected to the upper surface of the lower L-shaped plate, and the two longitudinal rods respectively penetrate the inner plate and the upper L-shaped plate longitudinally. The inner plate and the upper L-shaped plate are slidably connected to the longitudinal rods.

[0013] By adopting the above technical solution, the longitudinal bar can restrict the movement trajectory of the inner plate and the lower L-shaped plate, prevent them from shifting or shaking during the force process, and ensure the stability of the upper and lower pressure rollers in clamping the wire.

[0014] Preferably, the side of the take-up reel away from the support rod is fixedly connected to an optical axis.

[0015] By adopting the above technical solution, the optical axis provides a convenient force application point for the rotation of the winding wheel, making it easy for operators to manually rotate the winding wheel to wind up the yarn, and it can also be adapted to an external drive device to realize automated winding operation.

[0016] Preferably, a U-shaped handle is fixedly connected to the side of the support rod away from the winding wheel, and a U-shaped pressure rod is inserted into the auxiliary sliding grooves on both sides of the U-shaped handle. The U-shaped pressure rod and the U-shaped handle are slidably connected, and two springs are fixedly connected to the surface of the U-shaped pressure rod. The two ends of the springs are fixedly connected to the U-shaped pressure rod and the U-shaped handle, respectively.

[0017] By adopting the above technical solution, the structure provides continuous pressure to the U-shaped pressure bar through the elastic potential energy of the second spring, so that the U-shaped pressure bar can form a stable braking resistance on the winding wheel when unwinding.

[0018] Preferably, the two ends of the U-shaped pressure rod are respectively inserted into the through grooves opened on the surface of the support rod, the U-shaped pressure rod and the support rod are slidably connected, and the end of the U-shaped pressure rod is in contact with the surface of the winding wheel.

[0019] By adopting the above technical solution, the unwinding speed of the take-up wheel can be effectively controlled through the friction between the U-shaped pressure bar and the take-up wheel, preventing the yarn from loosening due to excessive unwinding and ensuring that the yarn remains taut throughout the unwinding process.

[0020] Preferably, one end of the support rod is fixedly connected to a pull ring.

[0021] By adopting the above technical solution, the pull ring can suspend and fix the spool in a suitable position, so that the unwinding operation does not require holding the spool, freeing the operator's hands, while ensuring the stability of the spool position, and improving the convenience and safety of the unwinding process.

[0022] The beneficial effects of this utility model are: during the winding process, the clamping structure of the upper pressure roller and the lower pressure roller can exert a continuous and stable force on the yarn, so that the yarn is always kept taut. This can effectively avoid problems such as loosening and tangling of the yarn during winding, and ensure that the yarn is tightly wound on the winding roller.

[0023] By rotating the threaded rod, the force between the upper and lower pressure rollers can be easily adjusted, thereby achieving precise control of the wire tension. This is not limited by the wire material or diameter specifications, and operators can flexibly change the tension according to actual needs to meet the winding requirements of different types of wire.

[0024] Under the elastic potential energy of spring two, the end of the U-shaped pressure bar is tightly fitted with the side of the winding wheel. The friction between the two provides stable resistance to the rotation of the winding wheel, which can keep the yarn taut when it is pulled out. This effectively solves the problems of yarn loosening, knotting and tangling when unwinding traditional spools, and ensures the smoothness of the unwinding process.

[0025] When winding, the operator only needs to apply force to the U-shaped handle and U-shaped pressure bar to release the brake. The winding wheel can be easily rotated through the optical shaft to complete the winding. The operation process is simple and easy to understand. When unwinding, after hanging the pull ring in the appropriate position, pulling the yarn will automatically achieve tensioning and unwinding. The U-shaped handle is designed for easy hand operation, reducing the labor intensity of the operator and improving the convenience and comfort of use. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the U-shaped pressure bar and support bar in this utility model;

[0028] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a schematic diagram of the support rod and rotating shaft in this utility model;

[0030] Figure 5 This is a schematic diagram of the U-shaped handle and U-shaped pressure bar in this utility model;

[0031] Figure 6 This is a structural schematic diagram of the inner plate and the lower L-shaped plate in this utility model.

[0032] Explanation of reference numerals in the attached diagram: 1. Rewinding roller; 2. Support rod; 3. Upper L-shaped plate; 4. Upper pressure roller; 5. Lower pressure roller; 6. Threaded rod; 7. Longitudinal rod; 8. Inner plate; 9. Spring 1; 10. U-shaped handle; 11. U-shaped pressure rod; 12. Spring 2; 13. Auxiliary slide; 14. Optical shaft; 15. Through groove; 16. Rotating shaft; 17. Pull ring; 18. Lower L-shaped plate. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] like Figures 1 to 6 As shown, this embodiment provides a spool with a tensioning function;

[0035] A tensioning spool includes a support rod 2 and a winding wheel 1. A lower pressure wheel 5 is mounted on the surface of the support rod 2, and an upper pressure wheel 4 is positioned above the lower pressure wheel 5. The upper pressure wheel 4 works in conjunction with the lower pressure wheel 5 to clamp the thread. A spring 9 is positioned above the upper pressure wheel 4. An upper L-shaped plate 3 is fixedly connected to the upper surface of the support rod 2. A threaded rod 6 is inserted into a threaded hole on the surface of the upper L-shaped plate 3. The threaded rod 6, in conjunction with the spring 9, changes the force between the upper pressure wheel 4 and the lower pressure wheel 5. By adjusting this force, it can be adapted to threads of different thicknesses and materials, ensuring that the thread always maintains appropriate tension during winding and avoiding slack or overstretching.

[0036] A rotating shaft 16 is fixedly connected to the surface of the support rod 2. The winding wheel 1 is sleeved on the surface of the rotating shaft 16. The winding wheel 1 and the rotating shaft 16 are rotatably connected. This rotatable connection structure allows the winding wheel 1 to rotate flexibly, ensuring that the winding and unwinding process of the yarn is smooth and reducing yarn damage caused by rotation jamming.

[0037] A lower L-shaped plate 18 is fixedly connected to one side of the upper pressure roller 4. An inner plate 8 is provided between the lower L-shaped plate 18 and the upper L-shaped plate 3. A spring 9 is fixedly connected between the inner plate 8 and the lower L-shaped plate 18. The bottom end of the threaded rod 6 is rotatably connected to the inner plate 8 through a bearing. This structure enables the rotational motion of the threaded rod 6 to be stably converted into the lifting motion of the inner plate 8, and then the force is accurately transmitted to the lower L-shaped plate 18 through the spring 9, so as to achieve smooth adjustment of the pressure of the upper pressure roller 4.

[0038] Two longitudinal rods 7 are fixedly connected to the upper surface of the lower L-shaped plate 18. The two longitudinal rods 7 pass through the inner plate 8 and the upper L-shaped plate 3 longitudinally, respectively. The inner plate 8 and the upper L-shaped plate 3 are slidably connected to the longitudinal rods 7. The longitudinal rods 7 can restrict the movement trajectory of the inner plate 8 and the lower L-shaped plate 18, prevent them from shifting or shaking during the force process, and ensure the stability of the upper pressure roller 4 and the lower pressure roller 5 in clamping the wire.

[0039] The side of the take-up wheel 1 away from the support rod 2 is fixedly connected to the optical shaft 14. The optical shaft 14 provides a convenient force application point for the rotation of the take-up wheel 1, making it easy for the operator to manually rotate the take-up wheel 1 to wind up the yarn. It can also be adapted to an external drive device to realize automated winding operation.

[0040] A U-shaped handle 10 is fixedly connected to the side of the support rod 2 away from the take-up wheel 1. A U-shaped pressure rod 11 is inserted into the auxiliary sliding grooves 13 on both sides of the U-shaped handle 10. The U-shaped pressure rod 11 and the U-shaped handle 10 are slidably connected. Two springs 12 are fixedly connected to the surface of the U-shaped pressure rod 11. The two ends of the springs 12 are fixedly connected to the U-shaped pressure rod 11 and the U-shaped handle 10, respectively. This structure provides continuous pressure to the U-shaped pressure rod 11 through the elastic potential energy of the springs 12, so that the U-shaped pressure rod 11 can form a stable braking resistance on the take-up wheel 1 when unwinding.

[0041] The two ends of the U-shaped pressure rod 11 are respectively inserted into the through grooves 15 opened on the surface of the support rod 2. The U-shaped pressure rod 11 and the support rod 2 are slidably connected. The end of the U-shaped pressure rod 11 is in contact with the surface of the take-up wheel 1. Through the friction between the U-shaped pressure rod 11 and the take-up wheel 1, the unwinding speed of the take-up wheel 1 can be effectively controlled, preventing the yarn from loosening due to excessive unwinding and ensuring that the yarn is always taut during the unwinding process.

[0042] One end of the support rod 2 is fixedly connected to a pull ring 17, which can suspend and fix the spool in a suitable position, so that the unwinding operation does not require holding the spool, freeing the operator's hands, while ensuring the stability of the spool position, and improving the convenience and safety of the unwinding process.

[0043] Working principle: When winding the yarn, the yarn is first placed between the upper pressure roller 4 and the lower pressure roller 5. The yarn is initially positioned by the clamping action of the upper pressure roller 4 and the lower pressure roller 5. At this time, the operator's hand applies force to the U-shaped handle 10 and the U-shaped pressure rod 11. This force will compress the second spring 12. As the second spring 12 is compressed, the end of the U-shaped pressure rod 11 is no longer in contact with the surface of the winding wheel 1, thereby releasing the braking restriction of the U-shaped pressure rod 11 on the winding wheel 1.

[0044] After the brake is released, the operator can use the other hand to rotate the optical shaft 14 to drive the take-up wheel 1 to rotate around the shaft 16. Since the take-up wheel 1 and the shaft 16 are rotatably connected, the take-up wheel 1 can rotate smoothly, thereby winding the yarn onto the take-up wheel 1. During this winding process, there is a certain force between the upper pressure wheel 4 and the lower pressure wheel 5. This force will produce a continuous tension effect on the yarn, thereby ensuring that the yarn wound on the take-up wheel 1 has good tension and avoiding slack.

[0045] The winding wheel 1 and the rotating shaft 16 can be rotatably connected by a bearing to prevent the winding wheel 1 from sliding laterally on the surface of the rotating shaft 16.

[0046] If the tension of the thread needs to be adjusted, it can be achieved by rotating the threaded rod 6. Since the threaded rod 6 is inserted into a threaded hole on the surface of the upper L-shaped plate 3, and its bottom end is rotatably connected to the inner plate 8 via a bearing, rotating the threaded rod 6 causes it to move up and down along the threaded hole, thereby changing the position of the inner plate 8. Because the spring 9 is fixedly connected between the inner plate 8 and the lower L-shaped plate 18, the change in the position of the inner plate 8 will change the compression of the spring 9, thus adjusting the force exerted by the spring 9 on the lower L-shaped plate 18. The lower L-shaped plate 18 is fixedly connected to the upper pressure roller 4, so the change in the force on the lower L-shaped plate 18 will be transmitted to the upper pressure roller 4, which will eventually change the force between the upper pressure roller 4 and the lower pressure roller 5, thereby adjusting the tension of the yarn. At the same time, the two longitudinal rods 7 fixedly connected to the upper surface of the lower L-shaped plate 18 pass through the inner plate 8 and the upper L-shaped plate 3 longitudinally, respectively. The inner plate 8 and the upper L-shaped plate 3 are slidably connected to the longitudinal rods 7. The longitudinal rods 7 play a guiding role, ensuring that the inner plate 8 and the lower L-shaped plate 18 remain stable during movement, and ensuring the accuracy of tension adjustment.

[0047] When unwinding the yarn, first hang the pull ring 17 in a suitable position to provide stable support for the spool. When the operator pulls the yarn by hand, the yarn will drive the take-up wheel 1 to rotate around the shaft 16, causing the yarn to be released from the take-up wheel 1. Without applying force to the U-shaped handle 10 and the U-shaped pressure rod 11, the second spring 12 will release elastic potential energy. Since the two ends of the second spring 12 are fixedly connected to the U-shaped pressure rod 11 and the U-shaped handle 10 respectively, under the action of elastic potential energy, the U-shaped pressure rod 11 will slide along the auxiliary slide groove 13 and the through groove 15, so that the end of the U-shaped pressure rod 11 is tightly attached to the side of the take-up wheel 1. During the process of pulling the yarn, friction will be generated between the U-shaped pressure rod 11 and the take-up wheel 1. This friction will increase the resistance to the rotation of the take-up wheel 1, so that the yarn is always taut during the unwinding process, avoiding problems such as slackness and knotting.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of the invention. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A spool with tensioning function, comprising a support rod (2) and a winding reel (1), characterized in that: The support rod (2) is equipped with a lower pressure roller (5), and an upper pressure roller (4) is provided above the lower pressure roller (5). The upper pressure roller (4) works with the lower pressure roller (5) to clamp the wire. A spring (9) is provided above the upper pressure roller (4). An upper L-shaped plate (3) is fixedly connected to the upper surface of the support rod (2). A threaded rod (6) is inserted into the threaded hole on the surface of the upper L-shaped plate (3). The threaded rod (6) is used to change the force between the upper pressure roller (4) and the lower pressure roller (5) by working with the spring (9).

2. A spool with tensioning function according to claim 1, characterized in that: The support rod (2) has a rotating shaft (16) fixedly connected to its surface. The winding wheel (1) is sleeved on the surface of the rotating shaft (16). The winding wheel (1) and the rotating shaft (16) are rotatably connected.

3. A spool with tensioning function according to claim 1, characterized in that: A lower L-shaped plate (18) is fixedly connected to one side of the upper pressure roller (4). An inner plate (8) is provided between the lower L-shaped plate (18) and the upper L-shaped plate (3). A spring (9) is fixedly connected between the inner plate (8) and the lower L-shaped plate (18). The bottom end of the threaded rod (6) is rotatably connected to the inner plate (8) through a bearing.

4. A spool with tensioning function according to claim 3, characterized in that: The upper surface of the lower L-shaped plate (18) is fixedly connected to two longitudinal rods (7), which respectively penetrate the inner plate (8) and the upper L-shaped plate (3) longitudinally. The inner plate (8) and the upper L-shaped plate (3) are slidably connected to the longitudinal rods (7).

5. A spool with tensioning function according to claim 1, characterized in that: The side of the take-up reel (1) away from the support rod (2) is fixedly connected to the optical axis (14).

6. A spool with tensioning function according to claim 1, characterized in that: A U-shaped handle (10) is fixedly connected to the side of the support rod (2) away from the winding wheel (1). A U-shaped pressure rod (11) is inserted into the auxiliary sliding groove (13) on both sides of the U-shaped handle (10). The U-shaped pressure rod (11) and the U-shaped handle (10) are slidably connected. Two springs (12) are fixedly connected to the surface of the U-shaped pressure rod (11). The two ends of the springs (12) are fixedly connected to the U-shaped pressure rod (11) and the U-shaped handle (10) respectively.

7. A spool with tensioning function according to claim 6, characterized in that: The two ends of the U-shaped pressure rod (11) are respectively inserted into the through groove (15) opened on the surface of the support rod (2). The U-shaped pressure rod (11) and the support rod (2) are slidably connected. The end of the U-shaped pressure rod (11) is in contact with the surface of the winding wheel (1).

8. A spool with tensioning function according to claim 1, characterized in that: One end of the support rod (2) is fixedly connected to a pull ring (17).

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