A polyester film stretching tension device

Abstract

The utility model belongs to polyester film processing technical field, and disclose a kind of polyester film stretching tension device, including operation platform, the top of operation platform is equipped with stretching tension mechanism, the top of operation platform is fixedly connected fixed platform, the top of operation platform is slidably connected with moving platform, the top of moving platform and operation platform is fixedly connected with quick -mounting component, the quick -mounting component includes two connecting frames, the inner surface of two connecting frames is commonly equipped with tension roller, the utility model sets up stretching tension mechanism, under the action of power motor one and power motor two, further precision control moving platform on the sliding of operation platform, polyester film's stretching distance can be according to actual production demand, in large range flexible adjustment, whether it is long distance's powerful stretching, or short distance's fine stretching, can easily master, effectively improve stretching effect and reduce the rate of defective product.

Description

Technical Field

[0001] This utility model belongs to the field of polyester film processing technology, specifically a polyester film stretching and tensioning device. Background Technology

[0002] Polyester film is widely used in many fields such as packaging, electronics, and solar cells due to its excellent mechanical, optical, and chemical properties. In the packaging industry, it is used for food and pharmaceutical packaging, requiring uniform film thickness and a smooth surface to ensure the packaging's airtightness and aesthetics. In the electronics field, as a capacitor and insulating material, it has strict standards for electrical properties and dimensional accuracy. In solar cell manufacturing, polyester film serves as a backsheet material, requiring high tensile strength and dimensional stability to withstand complex outdoor environments.

[0003] Meanwhile, the patent specification with application number CN214114328U discloses a polyester film stretching and rewinding device, "including a frame, on which an active adjustment mechanism and a rotation adjustment mechanism for adjusting film tension are provided. The active adjustment mechanism includes a first active roller and a second active roller provided on the frame. The rotation adjustment mechanism includes a rotation bracket provided on the frame. A tension adjustment frame is rotatably connected in the rotation bracket. A plurality of tension adjustment rollers are provided on the tension adjustment frame. The advantage of this utility model is that it has a good film tensioning effect and improves the quality of film products."

[0004] In the field of polyester film production, traditional equipment is difficult to adapt to diverse stretching requirements. When faced with stretching tasks of polyester films with different process requirements and specifications, its mechanical structure and power adjustment system cannot adapt quickly and accurately, resulting in poor stretching effect and increased defect rate. Secondly, when the tension roller is worn and needs to be replaced, the complex connection and fixing method of the existing equipment makes the disassembly and installation process extremely cumbersome, requiring a lot of manpower and time, which seriously slows down the production pace.

[0005] Therefore, a polyester film stretching and tensioning device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a polyester film stretching and tensioning device, which has the advantages of effectively improving the stretching effect, reducing the defect rate, ensuring the continuity of production, and significantly improving production efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a polyester film stretching and tensioning device, comprising an operating table, a stretching and tensioning mechanism at the top of the operating table, a fixed platform fixedly connected to the top of the operating table, a movable platform slidably connected to the top of the operating table, and quick-release components fixedly connected to the tops of both the movable platform and the operating table. Each quick-release component includes two connecting frames, with a tensioning roller shared on the inner surface of both connecting frames. A connecting block is rotatably connected to one end of one of the connecting frames, and a groove is formed at one end of the connecting block. A collar is sleeved on the end of the tensioning roller near the groove, and the collar is slidably sleeved with the tensioning roller. A sleeve rod for the groove is fixedly inserted into the inner surface of the collar. A receiving groove is formed on the end of the tensioning roller near the groove, and a return spring is fixedly connected to one inner wall of the receiving groove. The other end of the return spring is fixedly connected to one end of the sleeve rod.

[0008] Preferably, a rotating rod is rotatably connected to the inner surface of another connecting frame, one end of the rotating rod is fixedly connected to a spline, and one end of the tensioning roller is provided with a keyway for use with the spline.

[0009] Preferably, the inner surface of the collar is fixedly connected to two sliders, and the outer surface of the tension roller is provided with a groove for use with the two sliders.

[0010] Preferably, the tensioning mechanism includes a power motor, one end of which is fixedly connected to the operating table. The top of the operating table has an elongated groove, and a lead screw is rotatably connected to both inner walls of the elongated groove. The output end of the power motor passes through one end of the operating table and is fixedly connected to the lead screw. A moving block is threaded onto the outer surface of the lead screw, and the top of the moving block is fixedly connected to the moving platform. The moving platform is slidably connected to the operating table.

[0011] Preferably, the bottom of the mobile platform is fixedly connected to a guide bar, and the top of the operating platform is provided with a guide groove for use with the two guide bars.

[0012] Preferably, the tensioning mechanism further includes a second power motor. Two vertical plates are fixedly connected to the top of the operating table. One end of the second power motor is fixedly connected to one of the vertical plates. Corresponding ends of the two vertical plates are rotatably connected to a rotating shaft. The output end of the second power motor passes through the corresponding vertical plate and is fixedly connected to the rotating shaft. One end of each of the two rotating rods passes through a corresponding connecting frame and is fixedly connected to a bevel gear. A bevel gear is fixedly sleeved on one side of the outer surface of the rotating shaft. The bevel gear is meshed with one of the bevel gears. A bevel gear is slidably sleeved on the other side of the rotating shaft. The bevel gear is meshed with the other bevel gear.

[0013] Preferably, a support frame is fixedly connected to one end of the mobile platform, and a rotating ring is rotatably connected to the inner surface of the support frame. One end of the rotating ring is rotatably connected to one end of the bevel gear three.

[0014] Preferably, the outer surface of the rotating shaft has two limiting grooves, and the inner surfaces of the rotating ring and the bevel gear three are both fixedly connected with limiting blocks that cooperate with the two limiting grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model is equipped with a tensioning mechanism. Under the action of power motor one and power motor two, the sliding of the moving table on the operating table is precisely controlled, which allows the stretching distance of the polyester film to be flexibly adjusted within a large range according to actual production needs. Whether it is long-distance strong stretching or short-distance fine stretching, it can be easily handled, effectively improving the stretching effect and reducing the defect rate.

[0017] 2. This utility model is equipped with a quick-installation component. Operators only need to apply simple force to pull the sleeve rod out of the groove of the connecting block to quickly remove the old tension roller. When installing the new roller, the sleeve rod is aligned with the groove and inserted. The reset spring instantly takes effect and automatically locks the sleeve rod into the groove, completing a stable connection. The entire replacement process is simple and efficient, greatly shortening equipment maintenance time, effectively ensuring the continuity of production, and significantly improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the tensioning mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the operating table structure of this utility model;

[0021] Figure 4 This is an exploded view of the bevel gear and support frame structure of this utility model;

[0022] Figure 5 This is an exploded view of the quick-assembly component structure of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 7 This is a schematic diagram of the tension roller and collar of this utility model.

[0025] In the diagram: 1. Control panel;

[0026] 2. Quick-release assembly; 21. Tensioning roller; 22. Spline; 23. Rotating rod; 24. Keyway; 25. Guide bar; 26. Connecting frame; 27. Return spring; 28. Sleeve rod; 29. ​​Connecting block; 30. Groove; 31. Slider; 32. Slide groove; 33. Receiving groove; 34. Collar;

[0027] 3. Fixed platform; 4. Mobile platform;

[0028] 5. Tensioning mechanism; 51. Bevel gear three; 52. Bevel gear two; 53. Rotating shaft; 531. Limiting groove; 532. Limiting block; 533. Rotating ring; 54. Bevel gear one; 55. Power motor two; 56. Support frame; 57. Vertical plate;

[0029] 6. Long slot; 61. Moving block; 62. Guide slot; 63. Power motor one; 64. Lead screw. Detailed Implementation

[0030] 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.

[0031] like Figures 1 to 7 As shown, this utility model provides a polyester film stretching and tensioning device, including an operating table 1, a stretching and tensioning mechanism 5 at the top of the operating table 1, a fixed platform 3 fixedly connected to the top of the operating table 1, a movable platform 4 slidably connected to the top of the operating table 1, and quick-release components 2 fixedly connected to both the movable platform 4 and the top of the operating table 1.

[0032] The quick-installation assembly 2 includes two connecting frames 26. The inner surfaces of the two connecting frames 26 are jointly provided with a tension roller 21. One end of one connecting frame 26 is rotatably connected to a connecting block 29. One end of the connecting block 29 has a groove 30. A collar 34 is sleeved on the end of the tension roller 21 near the groove 30. The collar 34 is slidably sleeved with the tension roller 21. A sleeve rod 28 for use in the groove 30 is fixedly inserted into the inner surface of the collar 34. A receiving groove 33 is provided on the end of the tension roller 21 near the groove 30. A return spring 27 is fixedly connected to one side of the inner wall of the receiving groove 33. The other end of the return spring 27 is fixedly connected to one end of the sleeve rod 28. When installing the tension roller 21, you only need to align the sleeve rod 28 with the groove 30 and insert it. The elastic force of the return spring 27 can achieve quick installation and a stable connection. When disassembling, you only need to overcome the spring force to pull out the sleeve rod 28. The operation is simple and efficient.

[0033] Specifically, a rotating rod 23 is rotatably connected to the inner surface of another connecting frame 26. One end of the rotating rod 23 is fixedly connected to a spline 22, and one end of the tension roller 21 is provided with a keyway 24 that matches the spline 22. The cooperation between the spline 22 and the keyway 24 can ensure that the power transmission is stable and reliable when the rotating rod 23 drives the tension roller 21 to rotate, avoiding slippage and ensuring the synchronicity and stability of the rotation of the tension roller 21 during the stretching and tensioning of the polyester film.

[0034] like Figures 1 to 7 As shown, two sliders 31 are fixedly connected to the inner surface of the collar 34. The outer surface of the tension roller 21 is provided with a groove 32 that works with the two sliders 31. The sliders 31 and the groove 32 restrict the movement trajectory of the collar 34 on the tension roller 21, so that the collar 34 can only slide along the axial direction of the tension roller 21. This ensures that the sleeve 28 and the groove 30 are accurately engaged and disengaged, and improves the accuracy of the quick-release assembly 2 during installation and disassembly.

[0035] Furthermore, the tensioning mechanism 5 includes a power motor 63, one end of which is fixedly connected to the operating table 1. The top of the operating table 1 has an elongated groove 6, and the inner walls on both sides of the groove 6 are rotatably connected to a lead screw 64. The output end of the power motor 63 passes through one end of the operating table 1 and is fixedly connected to the lead screw 64. A moving block 61 is threaded onto the outer surface of the lead screw 64, and the top of the moving block 61 is fixedly connected to a moving platform 4. The moving platform 4 is slidably connected to the operating table 1. The power motor 63 drives the lead screw 64 to rotate, thereby causing the moving block 61 and the moving platform 4 to slide on the operating table 1. This structure can precisely control the moving distance of the moving platform 4, thereby accurately adjusting the distance between the moving platform 4 and the fixed platform 3 according to the different stretching requirements of the polyester film, ensuring the accuracy of the tensioning process.

[0036] like Figures 1 to 7 As shown, the bottom of the moving platform 4 is fixedly connected to a guide bar 25, and the top of the operating platform 1 is provided with a guide groove 62 that works with the two guide bars 25. This further ensures the stability and straightness of the moving platform 4 during movement, prevents the moving platform 4 from shifting or shaking during sliding, and ensures the uniformity and stability of the polyester film stretching and tensioning.

[0037] It is worth noting that the tensioning mechanism 5 also includes a second power motor 55. Two vertical plates 57 are fixedly connected to the top of the operating table 1. One end of the second power motor 55 is fixedly connected to one of the vertical plates 57. The corresponding ends of the two vertical plates 57 are rotatably connected to a rotating shaft 53. The output end of the second power motor 55 passes through the corresponding vertical plate 57 and is fixedly connected to the rotating shaft 53. One end of each of the two rotating rods 23 passes through the corresponding connecting frame 26 and is fixedly connected to a bevel gear 54. A bevel gear 52 is fixedly sleeved on one side of the outer surface of the rotating shaft 53. The bevel gear 52 meshes with one of the bevel gears 54. A bevel gear 51 is slidably sleeved on the other side of the rotating shaft 53. The bevel gear 51 meshes with the other bevel gear 54. The second power motor 55 can drive the two rotating rods 23 to rotate simultaneously through the rotating shaft 53 and a series of bevel gears, thereby driving the two tensioning rollers 21 to rotate synchronously, realizing synchronous tensioning of both sides of the polyester film, ensuring that the polyester film is subjected to uniform force during the stretching process, and improving the quality of stretching and tensioning.

[0038] like Figures 1 to 7 As shown, a support frame 56 is fixedly connected to one end of the moving platform 4. A rotating ring 533 is rotatably connected to the inner surface of the support frame 56. One end of the rotating ring 533 is rotatably connected to one end of the bevel gear 3 51, providing stable support and a rotating foundation for the bevel gear 3 51. This ensures that the bevel gear 3 51 can maintain a stable position and good meshing state during the meshing transmission with the bevel gear 1 54, thus ensuring the stability and reliability of power transmission.

[0039] It is worth emphasizing that two limiting grooves 531 are opened on the outer surface of the rotating shaft 53, and limiting blocks 532 that cooperate with the two limiting grooves 531 are fixedly connected to the inner surfaces of the rotating ring 533 and the bevel gear 51. This ensures the synchronous rotation of the rotating ring 533 and the rotating shaft 53, avoids axial movement of the bevel gear 51 during rotation, and further improves the stability of power transmission and the reliability of device operation.

[0040] Among them, the first power motor 63 and the second power motor 55 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The wiring diagram of the motors in this utility model is common knowledge in the field, and their working principle is already known technology. The appropriate model is selected based on actual use; therefore, the control method and wiring layout of the motors will not be explained in detail.

[0041] Working principle and process: First, install the polyester film on the tension roller 21 of the quick-assembly assembly 2, place the tension roller 21 between the two connecting frames 26, align the sleeve rod 28 on the collar 34 with the groove 30 of the connecting block 29 at one end, and insert it by the elastic force of the return spring 27, ensuring that the slider 31 and the slide groove 32 are accurately aligned; at the other end, align the spline 22 of the rotating rod 23 with the keyway 24 of the tension roller 21 and insert it. Then start the power motor 63, which drives the lead screw 64 to rotate, and the lead screw 64 drives the moving block 61 to move, thereby making the moving table 4 slide on the operating table 1, changing the distance between the moving table 4 and the fixed table 3, and realizing the stretching of the polyester film. Simultaneously, the second power motor 55 is started, driving the rotating shaft 53 to rotate. The second bevel gear 52 on the rotating shaft 53 meshes with one of the first bevel gears 54, driving a rotating rod 23 and its corresponding tension roller 21 to rotate. Meanwhile, the third bevel gear 51 meshes with another bevel gear 54, driving another rotating rod 23 and its corresponding tension roller 21 to rotate, thus achieving tensioning of the polyester film. Throughout the process, the guide bar 25 and guide groove 62 ensure the stability of the moving platform 4, while the limiting groove 531 and limiting block 532 ensure the stable rotation of the third bevel gear 51 and the rotating ring 533, thereby achieving precise and stable stretching and tensioning of the polyester film.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyester film stretching tension device comprising an operating table (1), characterized in that: The top end of the operating table (1) is provided with a stretching tensioning mechanism (5), the top end of the operating table (1) is fixedly connected with a fixed table (3), and the top end of the operating table (1) is slidingly connected with a moving table (4); the top end of the operating table (1) and the moving table (4) are both fixedly connected with a quick-mounting assembly (2). The quick-mounting assembly (2) comprises two connecting frames (26), the inner surfaces of the two connecting frames (26) are provided with a tensioning roller (21) in common, one end of one of the connecting frames (26) is rotatably connected with a connecting block (29), one end of the connecting block (29) is provided with a groove (30), one end of the tensioning roller (21) close to the groove (30) is sleeved with a sleeve ring (34), the sleeve ring (34) is slidingly sleeved with the tensioning roller (21), the inner surface of the sleeve ring (34) is fixedly provided with a sleeve rod (28) used in the groove (30), one end of the tensioning roller (21) close to the groove (30) is provided with an accommodating groove (33), one side inner wall of the accommodating groove (33) is fixedly connected with a return spring (27), the other end of the return spring (27) is fixedly connected with one end of the sleeve rod (28).

2. A polyester film stretching tension device according to claim 1, characterized in that: The inner surface of the other connecting frame (26) is rotatably connected with a rotating rod (23), one end of the rotating rod (23) is fixedly connected with a spline (22), and one end of the tensioning roller (21) is provided with a key groove (24) used in cooperation with the spline (22).

3. A polyester film stretching tension device according to claim 1, wherein: The inner surface of the sleeve ring (34) is fixedly connected with two sliding blocks (31), and the outer surface of the tensioning roller (21) is provided with a sliding groove (32) used in cooperation with the two sliding blocks (31).

4. A polyester film stretching tension device according to claim 1, wherein: The stretching tensioning mechanism (5) comprises a power motor (63), one end of the power motor (63) is fixedly connected with the operating table (1), the top end of the operating table (1) is provided with a long groove (6), the two side inner walls of the long groove (6) are rotatably connected with a lead screw (64), the output end of the power motor (63) penetrates one end of the operating table (1) and is fixedly connected with the lead screw (64), the outer surface of the lead screw (64) is threadedly sleeved with a moving block (61), the top end of the moving block (61) is fixedly connected with the moving table (4), and the moving table (4) is slidingly connected with the operating table (1).

5. A polyester film stretching tension device according to claim 4, wherein: The bottom end of the moving table (4) is fixedly connected with a guide strip (25), and the top end of the operating table (1) is provided with a guide groove (62) used in cooperation with the two guide strips (25).

6. A polyester film stretching tension device according to claim 2, wherein: The stretching tension mechanism (5) further includes a power motor two (55), the top end of the operation platform (1) is fixedly connected with two vertical plates (57), one end of the power motor two (55) is fixedly connected with one of the vertical plates (57), the corresponding ends of the two vertical plates (57) are jointly rotatably connected with a rotating shaft (53), the output end of the power motor two (55) penetrates through the corresponding vertical plate (57) and is fixedly connected with the rotating shaft (53), one end of the two rotating rods (23) penetrates through the corresponding connecting frame (26) and is fixedly connected with a bevel gear one (54), one side of the outer surface of the rotating shaft (53) is fixedly sleeved with a bevel gear two (52), the bevel gear two (52) and one of the bevel gear one (54) are rotatably connected, the other side of the rotating shaft (53) is slidably sleeved with a bevel gear three (51), the bevel gear three (51) and the other bevel gear one (54) are rotatably connected.

7. A polyester film stretching tension device according to claim 6, wherein: One end of the mobile station (4) is fixedly connected with a support frame (56), the inner surface of the support frame (56) is rotatably connected with a rotating ring (533), one end of the rotating ring (533) is rotatably connected with one end of the bevel gear three (51).

8. A polyester film stretching tension device according to claim 7, wherein: The outer surface of the rotating shaft (53) is provided with two limiting grooves (531), the inner surfaces of the rotating ring (533) and the bevel gear three (51) are fixedly connected with limiting blocks (532) matched with the two limiting grooves (531).

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