A constant tension pay-off device for impregnated polyester cord

Abstract

The utility model provides a kind of impregnated polyester cord constant tension pay-off device, including shell, the shell inside rotationally connected with spool and multiple swing arms, spring one is fixedly connected between swing arm and shell, the spool one end is fixedly connected with wire drum, wire drum outside is wound with cord, the shell inside is fixedly connected with clamping support, the shell inside rotationally connected with rotating ring, the rotating ring and swing arm one end are fixedly connected with synchronous rope belt, the rotating ring one end rotationally connected with clamping assembly, the clamping assembly other end is slidably connected in the inside opening of clamping support;Through the linkage of swing arm and clamping assembly, realize tension automatic regulation, when wire drum releases too much cord, swing arm clockwise swings tension cord, simultaneously by synchronous rope belt and rotating ring rotation, make connecting rod push slide platform and clamping plate to the pressure of two ends of center spool, utilize friction deceleration spool, cord tightness change can be responded quickly, keep tension constant, operation is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of dipped polyester thread production technology, and in particular to a constant tension thread feeding device for dipped polyester thread. Background Technology

[0002] In the production of dipped polyester yarn, constant tension unwinding is a crucial step to ensure the consistency of the final product's performance and quality. Its purpose is threefold: First, to protect the polyester fibers from irregular stretching damage, preventing fiber strength loss or breakage due to tension fluctuations. Second, to lay the foundation for subsequent dipping processes; only with a constant yarn speed can the polyester yarn achieve uniform wetting and coating thickness in the adhesive solution, which is key to ensuring its adhesion strength to the base material. Third, to ensure that the product has a uniform microstructure and stable dimensions after heat treatment, preventing uneven internal stress from affecting its service life.

[0003] A search revealed a Chinese patent publication number CN111606136B, which discloses a constant tension yarn feeding device, comprising: an unwinding roller for supplying yarn; two guide rollers for guiding the yarn from the unwinding roller; and an adjusting roller for pulling the yarn between the two guide rollers, thereby balancing the pulling force with the yarn tension to adjust the yarn tension.

[0004] To address the problem in the aforementioned technologies that when the speed of the unloading drum is too fast, even if the guide roller is adjusted to balance the tension, the tension will still be affected by the excessive amount of rope unloaded from the drum, and there is a lack of function to limit the speed of the drum, a constant tension unloading device for dipped polyester rope is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a constant tension release device for dipped polyester cord to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: A constant tension unwinding device for dipped polyester cord includes a housing, a spool and multiple swing arms are rotatably connected to the inner side of the housing, a spring is fixedly connected between the swing arms and the housing, a bobbin is fixedly connected to one end of the spool, a cord is wound around the outside of the bobbin, a clamping bracket is fixedly connected to the inner side of the housing, a rotating ring is rotatably connected to the inner side of the housing, a synchronous rope is fixedly connected to one end of the rotating ring and one end of the swing arm, a clamping assembly is rotatably connected to one end of the rotating ring, and the other end of the clamping assembly is slidably connected to a groove on the inner side of the clamping bracket.

[0007] In some embodiments, the clamping assembly includes a connecting rod, a slide, and a clamping plate. One end of the slide is slidably connected to the upper and lower slots of the clamping bracket. The slide and the rotating ring are rotatably connected to the two ends of the connecting rod, and the clamping plate is fixedly connected to the bottom of the slide.

[0008] In some embodiments, a rubber pad is fixedly connected below the clamping plate, the other end of the rubber pad is slidably connected to the outside of the spool, and a guide wheel is rotatably connected to the inside of the housing, and the guide wheel is tumbledly connected to the synchronous rope belt.

[0009] In some embodiments, swing arm has swing grooves on both sides, and a roller mounting platform is slidably connected to the inside of the swing groove. Tensioning roller one and tensioning roller two are rotatably connected to the inside of the roller mounting platforms on the upper and lower sides, respectively. The rope is tumbledly connected to tensioning roller one and tensioning roller two.

[0010] In some embodiments, the tension roller is rotatably connected to an upper bracket at both ends, and the upper bracket is rotatably connected to a lower bracket at both ends.

[0011] In some embodiments, a tension sensor is fixedly connected to the lower end of the lower support, and a buffer component is fixedly connected below the tension sensor, with the lower end of the buffer component fixedly connected inside the housing.

[0012] In some embodiments, a plurality of slide rods are fixedly connected to the top of the upper support.

[0013] In some embodiments, a lifting plate is slidably connected above the slide rod, and a reset push rod is fixedly connected above the lifting plate.

[0014] In some embodiments, the top of the reset push rod is fixedly connected to the inner wall of the housing.

[0015] According to the claim, a constant tension wire feeding device for dipped polyester cord is characterized in that: a spring is fixedly connected to the top of the lifting plate and the upper support.

[0016] The present invention has the following advantages due to the adoption of the above technical solution:

[0017] 1. A constant tension unwinding device for dipped polyester cord, which achieves automatic tension adjustment through the linkage of a swing arm and a clamping assembly. When the cord spool releases too much cord, the swing arm swings clockwise to tighten the cord. At the same time, the synchronous rope belt drives the rotating ring to rotate, causing the connecting rod to push the slide table and clamping plate to apply pressure to both ends of the central cord shaft. By using friction to decelerate the cord shaft, it can quickly respond to changes in cord tension, maintain constant tension, and operate stably and reliably.

[0018] 2. A constant tension unwinding device for dipped polyester cord, wherein the working range of the swing arm can be adjusted by a reset push rod to enhance the adaptability of tension control. The reset push rod drives the lifting plate to move, changing the initial position of the upper support, thereby adjusting the rotation range of the swing arm. Combined with the elastic support of spring two, the tension adjustment can be concentrated in a smaller range, avoiding large fluctuations.

[0019] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is the main view of the present invention.

[0022] Figure 2 This is a side view of the present invention.

[0023] Figure 3 This is a partially exploded structural diagram of the present invention;

[0024] Figure 4 This is a structural diagram of the reset push rod installation of this utility model.

[0025] Figure label:

[0026] 1. Outer shell; 2. Swing arm; 3. Bollard; 4. Wire spool; 5. Spring 1; 6. Wire rope; 7. Tensioning roller 1; 8. Tensioning roller 2; 9. Lower support; 10. Tension sensor; 11. Buffer component; 12. Swing groove; 13. Guide wheel; 14. Synchronous rope; 15. Clamping bracket; 16. Rotating ring; 17. Connecting rod; 18. Slide table; 19. Clamping plate; 20. Rubber pad; 21. Roller mounting platform; 22. Upper support; 23. Reset push rod; 24. Lifting plate; 25. Slide rod; 26. Spring 2. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-4 As shown, a constant tension unwinding device for dipped polyester cord includes a housing 1. A spool 3 and multiple swing arms 2 are rotatably connected to the inside of the housing 1. A spring 5 is fixedly connected between the swing arms 2 and the housing 1. The spring 5 can cooperate with the swing arms 2 to maintain tension. A bobbin 4 is fixedly connected to one end of the spool 3. A cord 6 is wound around the outside of the bobbin 4. A clamping bracket 15 is fixedly connected to the inside of the housing 1. A rotating ring 16 is rotatably connected to the inside of the housing 1. A synchronous rope belt 14 is fixedly connected to one end of the rotating ring 16 and one end of the swing arms 2. A clamping assembly is rotatably connected to one end of the rotating ring 16. The other end of the clamping assembly is slidably connected to a slot on the inside of the clamping bracket 15.

[0031] The clamping assembly includes a connecting rod 17, a slide 18, and a clamping plate 19. One end of the slide 18 is slidably connected to the upper and lower slots of the clamping bracket 15. The slide 18 and the rotating ring 16 are rotatably connected to the two ends of the connecting rod 17, respectively. The clamping plate 19 is fixedly connected to the lower part of the slide 18.

[0032] During use, the rope 6 can be tensioned by swinging the swing arm 2. When the spool 4 rotates too fast and releases too much rope 6, the swing arm 2 can rotate clockwise to tension the rope 6 and ensure stable tension. At the same time, the swing arm 2 can drive the rotating ring 16 to rotate through the synchronous rope belt 14, which in turn drives the upper and lower sliding tables 18 to move towards the center through the connecting rod 17. This causes the clamping plate 19 to press the two ends of the spool 3 towards the center, and the friction between the two ends of the spool 3 slows down the spool 3, reducing the speed at which the spool 4 releases the rope 6. In this way, the swing arm 2, in conjunction with the rotation, can ensure that the tension of the rope 6 is constant more quickly and stably.

[0033] In this embodiment, a rubber pad 20 is fixedly connected to the lower part of the clamping plate 19. The other end of the rubber pad 20 is slidably connected to the outside of the spool 3, and a guide wheel 13 is rotatably connected to the inside of the outer casing 1. The guide wheel 13 is tumbledly connected to the synchronous rope belt 14.

[0034] The guide wheel 13 can support the synchronous rope belt 14 from the middle, and the rubber pad 20 can further improve the deceleration effect.

[0035] In this embodiment, swing arm 2 has swing grooves 12 on both sides, and a roller mounting platform 21 is slidably connected to the inside of the swing groove 12. Tensioning roller 7 and tensioning roller 8 are rotatably connected to the inside of the roller mounting platform 21 on the upper and lower sides, respectively. The rope 6 is slidably connected to tensioning roller 7 and tensioning roller 8.

[0036] The swing groove 12, in conjunction with the roller mounting platform 21, allows the swing arm 2 to swing the tension roller 7 and tension roller 8 up and down, while the tension roller 7 and tension roller 8 will only move vertically.

[0037] The tension roller 28 has an upper bracket 22 rotatably connected to both ends, and a lower bracket 9 rotatably connected to both ends of the upper bracket 22;

[0038] A tension sensor 10 is fixedly connected to the lower end of the lower bracket 9. A buffer component 11 is fixedly connected below the tension sensor 10. The lower end of the buffer component 11 is fixedly connected inside the housing 1. The tension sensor 10 can monitor the tension of the rope 6 by moving up and down through the tension roller 8 above. The buffer component 11 is preferably a hydraulic damper, which can reduce shaking while the tension sensor 10 moves up and down.

[0039] In this embodiment: During use, the rope 6 can be tensioned by swinging the swing arm 2. When the spool 4 rotates too fast and releases too much rope 6, the swing arm 2 can rotate clockwise to tension the rope 6 and ensure stable tension. At the same time, the swing arm 2 can drive the rotating ring 16 to rotate through the synchronous rope belt 14, and then drive the upper and lower sliding tables 18 to move towards the center through the connecting rod 17. This allows the clamping plate 19 to press the two ends of the spool 3 towards the center, and the friction between the two ends of the spool 3 slows down the spool 3, reducing the speed at which the spool 4 releases the rope 6. In this way, the rotating swing arm 2 can ensure that the tension of the rope 6 is constant more quickly and stably.

[0040] The guide wheel 13 can support the synchronous rope belt 14 from the middle, and the rubber pad 20 can further improve the deceleration effect. The swing groove 12, together with the roller mounting platform 21, allows the swing arm 2 to swing. When the tension roller 1 7 and tension roller 2 8 move up and down, the tension roller 1 7 and tension roller 2 8 will only move vertically. The tension sensor 10 can monitor the tension of the rope 6 by moving the tension roller 2 8 up and down above.

[0041] Example 2:

[0042] A constant tension unwinding device for dipped polyester cord, this embodiment is based on embodiment 1 with the following improvements, such as... Figure 1-4 As shown,

[0043] In this embodiment, a plurality of sliding rods 25 are fixedly connected to the top of the upper support 22, and a lifting plate 24 is slidably connected above the sliding rods 25;

[0044] A reset push rod 23 is fixedly connected above the lifting plate 24. The top of the reset push rod 23 is fixedly connected to the inner wall of the outer shell 1. A spring 26 is fixedly connected to the top of the lifting plate 24 and the upper bracket 22.

[0045] The reset push rod 23 is preferably an electric type. The extension and retraction of the reset push rod 23 can drive the lower lifting plate 24 to move, thereby adjusting the range of tension adjustment that the swing arm 2 can rotate. This can further make the tension adjustment more stable and controllable within a small range.

[0046] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A constant tension wire feeding device for dipped polyester cord, comprising a housing (1), characterized in that: The inner side of the outer shell (1) is rotatably connected to a spool (3) and multiple swing arms (2). A spring (5) is fixedly connected between the swing arms (2) and the outer shell (1). A bobbin (4) is fixedly connected to one end of the spool (3). A rope (6) is wound around the outside of the bobbin (4). A clamping bracket (15) is fixedly connected to the inner side of the outer shell (1). A rotating ring (16) is rotatably connected to the inner side of the outer shell (1). A synchronous rope (14) is fixedly connected between the rotating ring (16) and one end of the swing arm (2). The rotating ring (16) is rotatably connected to a clamping assembly at one end, and the other end of the clamping assembly is slidably connected to a slot on the inner side of the clamping bracket (15). The clamping assembly includes a connecting rod (17), a slide (18) and a clamping plate (19). One end of the slide (18) is slidably connected to the upper and lower slots of the clamping bracket (15). The slide (18) and the rotating ring (16) are rotatably connected to the two ends of the connecting rod (17) respectively. The clamping plate (19) is fixedly connected to the bottom of the slide (18).

2. The constant tension unwinding device for dipped polyester cord according to claim 1, characterized in that: A rubber pad (20) is fixedly connected below the clamping plate (19). The other end of the rubber pad (20) is slidably connected to the outside of the spool (3). A guide wheel (13) is rotatably connected to the inside of the outer shell (1). The guide wheel (13) is slidably connected to the synchronous rope belt (14).

3. The constant tension unwinding device for dipped polyester cord according to claim 2, characterized in that: The swing arm (2) has swing grooves (12) on both sides. A roller mounting platform (21) is slidably connected to the inside of the swing groove (12). Tensioning roller one (7) and tensioning roller two (8) are rotatably connected to the inside of the roller mounting platform (21) on the upper and lower sides respectively. The rope (6) is slidably connected to tensioning roller one (7) and tensioning roller two (8).

4. The constant tension unwinding device for dipped polyester cord according to claim 3, characterized in that: The tension roller 2 (8) is rotatably connected to an upper bracket (22) at both ends, and the upper bracket (22) is rotatably connected to a lower bracket (9) at both ends.

5. The constant tension unwinding device for dipped polyester cord according to claim 4, characterized in that: A tension sensor (10) is fixedly connected to the lower end of the lower bracket (9), and a buffer component (11) is fixedly connected below the tension sensor (10). The lower end of the buffer component (11) is fixedly connected inside the outer shell (1).

6. The constant tension unwinding device for dipped polyester cord according to claim 5, characterized in that: The top of the upper bracket (22) is fixedly connected with multiple sliding rods (25).

7. The constant tension unwinding device for dipped polyester cord according to claim 6, characterized in that: A lifting plate (24) is slidably connected above the sliding rod (25), and a reset push rod (23) is fixedly connected above the lifting plate (24).

8. The constant tension unwinding device for dipped polyester cord according to claim 7, characterized in that: The top of the reset push rod (23) is fixedly connected to the inner wall of the outer shell (1).

9. The constant tension unwinding device for dipped polyester cord according to claim 8, characterized in that: The top of the lifting plate (24) and the upper bracket (22) are fixedly connected with spring 2 (26).

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