Tension control structure of polyester yarn winding device

Abstract

This application belongs to the technical field of winding devices and discloses a tension control structure for a polyester filament winding device, including a base plate, a mounting frame, a winding roller, a drive motor, a fixed frame, a guide roller, a lifting frame, a tension roller, and a threaded rod. A rotating shaft, with its lower end connected to the upper end of the threaded rod, is vertically rotatably mounted on the fixed frame. A lower ring is fixedly sleeved on the rotating shaft. A connecting frame is provided at the top of the fixed frame, and a mounting tube arranged concentrically with the rotating shaft is provided on the connecting frame. An upper ring is vertically slidably mounted on the mounting tube. Two circumferentially spaced grooves are formed on the bottom surface of the upper ring, and a protrusion that mates with the grooves is provided on the top surface of the lower ring. Rotating the rotating shaft causes the lower ring to rotate, causing the protrusion to disengage from the groove and push the upper ring upwards. When the protrusion aligns with the next groove in the rotation direction, the upper ring falls back to its original position, and the protrusion and groove re-engage. Each up-and-down reciprocating motion of the upper ring corresponds to a half-turn rotation of the rotating shaft and the threaded rod.

Description

Technical Field

[0001] This utility model relates to the field of winding device technology, and in particular to a tension control structure for a polyester filament winding device. Background Technology

[0002] Polyester filament is the commercial name for polyester fiber in China. Its characteristics include resistance to chemicals and frequent washing, reducing fading and discoloration in clothing. Therefore, it is used in the manufacture of hotel uniforms, stonewashed denim, sportswear, and children's clothing. Relatively speaking, polyester filament is more durable than rayon. When embroidering, the machine operates at high speeds, and the high-tenacity polyester thread can withstand significant tensile force; moreover, it has extremely high fire resistance; even if the clothing is near a flame, it is not easily ignited. After production, polyester filament is usually wound into rolls using a winding device.

[0003] Chinese utility model patent CN217708358U discloses a filament winding tension adjustment device for a polyester filament winding machine. The device includes an outer casing, a motor, a winding roller, a threaded rod, a sliding shaft, and a tension roller. An adjustment device is mounted on the outer casing. The adjustment device includes a fixed sleeve fixedly mounted on the outer casing. The upper end of the threaded rod rotatably passes through the fixed sleeve and extends to the outside of the fixed sleeve. A sliding groove is formed inside the fixed sleeve, and a locking block is slidably connected inside the groove. A locking slot is formed on the inner surface of the threaded rod, with the slots evenly spaced. One end of the locking block extending outside the sliding groove engages inside the locking slot. The locking slot is triangular in shape, and the end of the locking block near the slot is adapted to fit the slot. The locking block is reset by the elastic force of a spring, thereby locking into another locking slot. Because multiple locking slots are evenly spaced on the surface of the threaded rod, it is convenient to adjust the rotation angle of the threaded rod, thus facilitating equidistant rotation of the threaded rod.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: During use, the locking block and the locking slot cannot form an effective engagement to drive the threaded rod to rotate. Furthermore, when rotating the threaded rod, the operator cannot easily perceive the complete engagement of the locking block and the locking slot, making it difficult to guarantee the rotation angle of the threaded rod and thus hindering the achievement of equidistant rotation of the threaded rod. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a tension control structure for a polyester filament winding device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a tension control structure for a polyester filament winding device, comprising a base plate, a mounting frame on the base plate, a winding roller rotatably mounted on the mounting frame, a drive motor on the mounting frame, the output shaft of the drive motor being connected to the winding roller, a fixing frame on the base plate, guide rollers rotatably mounted on both sides of the fixing frame, a lifting frame slidably mounted vertically inside the fixing frame, a tension roller rotatably mounted horizontally on the lifting frame, a threaded rod rotatably mounted vertically on the lifting frame, a rotating shaft rotatably mounted vertically on the fixing frame, the lower end of which is connected to the upper end of the threaded rod, a lower ring fixedly mounted on the rotating shaft, a connecting frame on the top of the fixing frame, an mounting tube concentrically arranged with the rotating shaft on the connecting frame, an upper ring slidably mounted vertically on the mounting tube, two circumferentially spaced grooves on the bottom surface of the upper ring, and a protrusion that mates with the grooves on the top surface of the lower ring.

[0007] By adopting the above technical solution, and setting up a fixed frame, guide roller, lifting frame, tension roller, mounting tube, lower ring, and upper ring, the winding path of the polyester filament is as follows: it first winds around the upper side of the guide roller away from the mounting frame, then around the lower side of the tension roller, then passes through the upper side of the guide roller near the mounting frame, and finally connects with the winding roller. After the drive motor starts, it drives the winding roller to rotate, completing the winding operation of the polyester filament. If it is necessary to adjust the tension of the polyester filament, the threaded rod can be rotated by rotating the shaft, which in turn drives the lifting frame and tension roller to rise and fall synchronously, thereby changing the tension. When the rotating shaft is rotated, the lower ring will rotate synchronously, causing the protrusion to disengage from the groove and push the upper ring to slide upward; when the protrusion aligns with the next groove in the rotation direction, the upper ring falls back to its original position, and the protrusion and groove re-form a fit. When the upper ring moves up and down once, the rotating shaft and threaded rod rotate half a turn, which is convenient for the staff to observe and ensures that the threaded rod can rotate at equal intervals.

[0008] Furthermore, the fixing frame includes upright plates spaced apart on the base plate, a top plate is provided on the top of the two upright plates, two vertical plates are spaced apart on the bottom surface of the top plate, a fixing plate is provided on the bottom of the two vertical plates, the lower end of the threaded rod is rotatably connected to the fixing plate, side plates are provided on both sides of the upright plates, and the guide roller is rotatably disposed between the corresponding two side plates.

[0009] By adopting the above technical solution, setting up a vertical plate, a top plate, and a fixing plate, the stability of the threaded rod rotation is ensured.

[0010] Furthermore, the lifting frame includes a lifting plate with threaded holes, a threaded rod that is helically connected to the threaded holes, mounting plates on both sides of the bottom surface of the lifting plate, a tensioning roller that is rotatably disposed between the two mounting plates, and a vertical groove on the upright plate with a slider that is slidably disposed in the groove and connected to the corresponding mounting plate.

[0011] By adopting the above technical solution, and setting up lifting plates, threaded holes, and sliding grooves, the stability of the lifting of the mounting plate and tension rollers is ensured.

[0012] Furthermore, the outer wall of the mounting tube is provided with several circumferentially spaced protrusions along its length, and the upper ring is provided with mounting grooves corresponding to the protrusions, and the mounting grooves are slidably connected to the corresponding protrusions.

[0013] By adopting the above technical solution, a raised strip and a mounting groove are set. The raised strip and the mounting groove work together to restrict the upper ring to slide only along the axial direction of the mounting tube and cannot rotate.

[0014] Furthermore, the connecting frame includes two horizontally spaced columns on the top surface of the top plate, and a connecting plate is provided at the upper end of the two columns. A circular hole is provided in the middle of the connecting plate, and the mounting tube is fixedly connected to the circular hole.

[0015] Furthermore, a compression spring is fitted onto the mounting tube located between the upper ring and the connecting plate.

[0016] By adopting the above technical solution, a compression spring is set up to provide downward thrust to the upper ring. When the groove and the protrusion are engaged, the rotating shaft is rotated. The protrusion pushes the upper ring upward with greater sliding resistance, which allows the operator rotating the rotating shaft to clearly perceive the rotation of the rotating shaft and the threaded rod.

[0017] Furthermore, a handle is provided at the upper end of the rotating shaft.

[0018] In summary, this utility model has the following beneficial effects: In this application, a fixed frame, guide roller, lifting frame, tension roller, mounting tube, lower ring, and upper ring are provided. The winding path of the polyester filament is as follows: it first passes over the upper side of the guide roller away from the mounting frame, then passes under the tension roller, and then passes over the upper side of the guide roller near the mounting frame, finally connecting with the winding roller. After the drive motor starts, it drives the winding roller to rotate, completing the winding operation of the polyester filament. If it is necessary to adjust the tension of the polyester filament, the threaded rod can be rotated by rotating the shaft, thereby driving the lifting frame and tension roller to rise and fall synchronously, thus changing the tension. When the rotating shaft is rotated, the lower ring will be rotated synchronously, causing the protrusion to disengage from the groove and push the upper ring to slide upward; when the protrusion aligns with the next groove in the rotation direction, the upper ring falls back to its original position, and the protrusion and groove re-form a fit. When the upper ring moves up and down once, the rotating shaft and threaded rod rotate half a turn, which is convenient for the staff to observe and enables the threaded rod to rotate at equal intervals. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 This is a structural schematic diagram of the fixing frame and connecting frame according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the top plate, connecting frame, and tension roller in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting frame and upper ring of an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the rotating shaft and lower ring in an embodiment of the present invention.

[0024] In the diagram: 10. Base plate; 11. Mounting frame; 12. Winding roller; 13. Drive motor; 20. Fixing frame; 21. Guide roller; 22. Vertical plate; 23. Top plate; 24. Vertical plate; 25. Fixing plate; 26. Side plate; 30. Lifting frame; 31. Tensioning roller; 32. Lifting plate; 33. Mounting plate; 34. Slide groove; 35. Sliding block; 40. Threaded rod; 41. Rotating shaft; 42. Lower ring; 43. Protrusion; 44. Handle; 50. Connecting frame; 51. Column; 52. Connecting plate; 60. Mounting tube; 61. Upper ring; 62. Groove; 63. Raised strip; 64. Compression spring. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-5 As shown in the embodiment of this application, a tension control structure for a polyester filament winding device is disclosed, including a base plate 10, a fixed frame 20, a lifting frame 30, a tension roller 31, a mounting tube 60, a lower ring 42, and an upper ring 61. A mounting frame 11 is provided on the base plate 10, and a winding roller 12 is rotatably mounted on the mounting frame 11. A drive motor 13 is also provided on the mounting frame 11, and the output shaft of the drive motor 13 is connected to the winding roller 12. The fixed frame 20 is mounted on the base plate 10, and guide rollers 21 are horizontally rotatably mounted on both sides of the fixed frame 20. A lifting frame 30 is vertically slidably mounted inside the fixed frame 20, and the tension roller 31 is horizontally rotatably mounted on the lifting frame 30. The tension roller 31 and the guide roller 21 are arranged parallel to each other. The winding path of the polyester filament is as follows: first, it winds around the upper side of the guide roller 21 away from the mounting frame 11, then winds around the lower side of the tension roller 31, then passes through the upper side of the guide roller 21 adjacent to the mounting frame 11, and finally connects with the winding roller 12. After the drive motor 13 starts, it drives the winding roller 12 to rotate, completing the winding operation of the polyester filament.

[0027] Specifically, a threaded rod 40 is vertically spirally mounted on the lifting frame 30, and a rotating shaft 41, whose lower end is connected to the upper end of the threaded rod 40, is vertically rotatably mounted on the fixed frame 20. A lower ring 42 is fixedly sleeved on the rotating shaft 41. A connecting frame 50 is provided at the top of the fixed frame 20, and an installation tube 60 is provided on the connecting frame 50, which is concentrically arranged with the rotating shaft 41. The upper ring 61 is vertically slidably mounted on the installation tube 60. Two circumferentially spaced grooves 62 are provided on the bottom surface of the upper ring 61, and a protrusion 43 that mates with the grooves 62 is provided on the top surface of the lower ring 42. If it is necessary to adjust the tension of the polyester yarn, the threaded rod 40 can be rotated by rotating the shaft 41, thereby driving the lifting frame 30 and the tension roller 31 to rise and fall synchronously, changing the stretching length and wrap angle of the polyester yarn around the roller, thus changing the tension. When the rotating shaft 41 is rotated, the lower ring 42 will rotate synchronously, causing the protrusion 43 to disengage from the groove 62 and pushing the upper ring 61 to slide upward. When the protrusion 43 aligns with the next groove 62 in the rotation direction, the upper ring 61 falls back to its original position, and the protrusion 43 and the groove 62 re-engage. When the upper ring 61 moves up and down once, the rotating shaft 41 and the threaded rod 40 have rotated half a turn, which is convenient for the staff to observe and ensures that the threaded rod 40 can rotate at equal intervals. A handle 44 is provided at the upper end of the rotating shaft 41 to facilitate the staff to rotate the rotating shaft 41.

[0028] In setup, the fixing frame 20 includes vertical plates 22 spaced apart on the base plate 10. A top plate 23 is shared by the two vertical plates 22, and a rotating hole is vertically formed on the top plate 23. A rotating shaft 41 is rotatably connected to the rotating hole. Two vertical plates 24 are spaced apart on the bottom surface of the top plate 23, and a fixing plate 25 is shared at the bottom of the two vertical plates 24. The lower end of the threaded rod 40 is rotatably connected to the fixing plate 25 to ensure the stability of the threaded rod 40's rotation. Side plates 26 are provided on both sides of the vertical plates 22, and guide rollers 21 are rotatably positioned between the corresponding two side plates 26.

[0029] The lifting frame 30 includes a lifting plate 32 with a threaded hole. A threaded rod 40 is screwed into the threaded hole. Mounting plates 33 are respectively provided on both sides of the bottom surface of the lifting plate 32. The tension roller 31 is rotatably disposed between the two mounting plates 33. A vertical groove 34 is provided on the vertical plate 22. A slider 35 connected to the corresponding mounting plate 33 is slidably disposed in the groove 34 to ensure the stability of the lifting of the mounting plate 33 and the tension roller 31.

[0030] In the specific configuration, the outer wall of the mounting tube 60 is provided with several circumferentially spaced protrusions 63. The upper ring 61 has a mounting groove corresponding to the protrusions 63, and the mounting groove is slidably connected to the corresponding protrusion 63. The protrusions 63 and the mounting groove work together to restrict the upper ring 61 from rotating relative to the mounting tube 60; it can only slide along the axial direction of the mounting tube 60. The connecting frame 50 includes two horizontally spaced columns 51 on the top surface of the top plate 23. The upper ends of the two columns 51 are provided with a connecting plate 52. A circular hole is opened in the middle of the connecting plate 52, and the mounting tube 60 is fixedly connected to the circular hole. A compression spring 64 is sleeved on the mounting tube 60 between the upper ring 61 and the connecting plate 52. The compression spring 64 provides a downward thrust to the upper ring 61. When the groove 62 cooperates with the protrusion 43, rotating the rotating shaft 41 causes the protrusion 43 to push the upper ring 61 upward with greater resistance, allowing the operator rotating the rotating shaft 41 to clearly perceive the rotation of the rotating shaft 41 and the threaded rod 40.

[0031] The working principle of the tension control structure of the polyester filament winding device in this embodiment is as follows:

[0032] The polyester filament first passes over the upper side of the guide roller 21, which is away from the mounting frame 11, then passes under the tension roller 31, and then passes over the upper side of the guide roller 21, which is close to the mounting frame 11, and finally connects with the winding roller 12. After the drive motor 13 starts, it drives the winding roller 12 to rotate, completing the winding operation of the polyester filament.

[0033] To adjust the tension of the polyester yarn, turn handle 44 to rotate the rotating shaft 41 and threaded rod 40, which in turn drives the lifting frame 30 and tension roller 31 to rise and fall synchronously, thereby changing the tension. When rotating shaft 41, it will simultaneously drive the lower ring 42 to rotate, causing the protrusion 43 to disengage from the groove 62 and push the upper ring 61 to slide upward. When the protrusion 43 is aligned with the next groove 62 in the rotation direction, the compression spring 64 pushes the upper ring 61 to fall and reset under the action of elastic force. The protrusion 43 and the groove 62 re-form a fit. When the upper ring 61 moves up and down once, the rotating shaft 41 and threaded rod 40 have rotated half a turn, which is convenient for the staff to observe and enables the threaded rod 40 to rotate at equal intervals.

[0034] 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 tension control structure for a polyester filament winding device, comprising a base plate (10), a mounting frame (11) provided on the base plate (10), a winding roller (12) rotatably mounted on the mounting frame (11), and a drive motor (13) further provided on the mounting frame (11), the output shaft of the drive motor (13) being connected to the winding roller (12), characterized in that: A fixed frame (20) is provided on the base plate (10). Guide rollers (21) are horizontally rotatably arranged on both sides of the fixed frame (20). A lifting frame (30) is vertically slidably arranged inside the fixed frame (20). A tensioning roller (31) is horizontally rotatably arranged on the lifting frame (30). A threaded rod (40) is vertically spirally rotatably arranged on the lifting frame (30). A rotating shaft (41) with its lower end connected to the upper end of the threaded rod (40) is vertically rotatably arranged on the fixed frame (20). A lower ring (42) is fixedly sleeved on the rotating shaft (41). A connecting frame (50) is provided on the top of the fixing frame (20). An installation tube (60) is provided on the connecting frame (50) and arranged concentrically with the rotating shaft (41). An upper ring (61) is vertically slidably arranged on the installation tube (60). Two circumferentially spaced grooves (62) are opened on the bottom surface of the upper ring (61). A protrusion (43) that cooperates with the groove (62) is provided on the top surface of the lower ring (42).

2. The tension control structure of the polyester filament winding device according to claim 1, characterized in that: The fixing frame (20) includes upright plates (22) spaced apart on the base plate (10), a top plate (23) is provided on the top of the two upright plates (22), two vertical plates (24) are spaced apart on the bottom surface of the top plate (23), a fixing plate (25) is provided on the bottom of the two vertical plates (24), the lower end of the threaded rod (40) is rotatably connected to the fixing plate (25), side plates (26) are provided on both sides of the upright plates (22), and the guide roller (21) is rotatably disposed between the corresponding two side plates (26).

3. The tension control structure of the polyester filament winding device according to claim 2, characterized in that: The lifting frame (30) includes a lifting plate (32), a threaded hole is provided on the lifting plate (32), the threaded rod (40) is screwed to the threaded hole, and mounting plates (33) are respectively provided on both sides of the bottom surface of the lifting plate (32). The tensioning roller (31) is rotatably arranged between the two mounting plates (33). A sliding groove (34) is vertically provided on the upright plate (22), and a slider (35) connected to the corresponding mounting plate (33) is slidably arranged in the sliding groove (34).

4. The tension control structure of the polyester filament winding device according to claim 3, characterized in that: The outer wall of the mounting tube (60) is provided with a number of circumferentially spaced protrusions (63) along its length direction. The upper ring (61) is provided with mounting grooves corresponding to the protrusions (63), and the mounting grooves are slidably connected to the corresponding protrusions (63).

5. The tension control structure of a polyester filament winding device according to claim 2, characterized in that: The connecting frame (50) includes two horizontally spaced columns (51) on the top surface of the top plate (23). The upper ends of the two columns (51) are provided with a connecting plate (52). A round hole is opened in the middle of the connecting plate (52), and the mounting tube (60) is fixedly connected to the round hole.

6. The tension control structure of the polyester filament winding device according to claim 1, characterized in that: A compression spring (64) is fitted onto the mounting tube (60) located between the upper ring (61) and the connecting plate (52).

7. The tension control structure of the polyester filament winding device according to claim 1, characterized in that: A handle (44) is provided at the upper end of the rotating shaft (41).

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