Polyimide film casting tensioning mechanism

Abstract

The utility model belongs to the technical field of polyimide film production equipment, and particularly relates to a polyimide film casting tensioning mechanism which comprises a base, two fixing seats are fixedly mounted on the upper surface of the base, fixing columns are fixedly mounted at the tops of the fixing seats, and movable sleeves are movably connected to the outer sides of the fixing columns in a sleeved mode. A tensioning roller is rotationally installed between the two movable sleeves, and a balancing weight is arranged on one side of each movable sleeve. The tension of the polyimide film can be adjusted, and the production quality and efficiency are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyimide film production equipment, in particular to a polyimide film casting tensioning mechanism. Background Art

[0002] Polyimide film is a thin film product formed from a solution through a series of processes, including cast film formation, stretching, and high-temperature imidization. It is widely used in aviation, mobile phones, and displays. Casting machines are used in polyimide film production to transport the film. These machines continuously and smoothly convey the molten polyimide raw material, ensuring uniform distribution of the packaging film during the molding process, improving production efficiency and film quality. This process is crucial for maintaining stable production line operation and optimizing product performance.

[0003] During the conveying process of polyimide film on the casting machine, if the tension of the film is not properly controlled, it is easy to be too tight or too loose, resulting in unstable conveying and abnormal increase in tension, causing film deformation, thereby affecting production quality and efficiency. Summary of the Invention

[0004] The utility model aims to provide a polyimide film casting tensioning mechanism, which can adjust the tension of the polyimide film and improve production quality and efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyimide film casting tensioning mechanism, comprising a base, two fixed seats are fixedly installed on the upper surface of the base, a fixed column is fixedly installed on the top of the fixed seat, a movable sleeve is movably connected to the outer side of the fixed column, a tensioning roller is rotatably installed between the two movable sleeves, and a counterweight block is provided on one side of the movable sleeve.

[0006] In order to adjust the tension of the polyimide film, as a preferred polyimide film casting tensioning mechanism of the present invention, a plurality of balls are provided on the inner side of the movable sleeve, and the balls are in rolling contact with the fixed column.

[0007] In order to further adjust the tension of the polyimide film, as a preferred polyimide film casting tensioning mechanism of the present invention, a threaded rod is fixedly installed on one side of the movable sleeve, a locking nut is threadedly sleeved on the outer side of the threaded rod, and the counterweight block is movably sleeved with the threaded rod.

[0008] In order to stably transport the polyimide film, as a preferred polyimide film casting tensioning mechanism of the present invention, a first conveying rack and a second conveying rack are fixedly installed on the top of the base, the first conveying rack is located on the left side of the second conveying rack, and the second conveying rack is located on the left side of the fixed seat.

[0009] In order to stably transport the polyimide film, as a preferred polyimide film casting tensioning mechanism of the present invention, a third conveying rack and a fourth conveying rack are fixedly installed on the top of the base, the fourth conveying rack is located on the right side of the third conveying rack, and the third conveying rack is located on the right side of the fixed seat.

[0010] In order to further stably convey the polyimide film, as a preferred polyimide film casting tensioning mechanism of the present invention, the first conveying frame and the fourth conveying frame are symmetrically arranged with tensioning rollers, and the second conveying frame and the third conveying frame are symmetrically arranged with tensioning rollers.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model utilizes a movable sleeve that is sleeved on the outside of a fixed column. A counterweight is configured to increase the weight of the tensioning roller, allowing the tensioning roller to exert gravity on the polyimide film. During the polyimide film conveying process, the tensioning roller applies gravity pressure to the polyimide film. By adjusting the tensioning force during the conveying of the polyimide film, the polyimide film is conveyed stably, thereby improving the production quality and efficiency of the polyimide film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model in use;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the tensioning roller of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0018] In the figure: 1. base; 2. first conveyor frame; 3. second conveyor frame; 4. third conveyor frame; 5. fourth conveyor frame; 6. fixed seat; 7. polyimide film; 8. fixed column; 9. movable sleeve; 10. tensioning roller; 11. counterweight; 12. ball bearing; 13. threaded rod; 14. locking nut. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] See also Figures 1 to 4 A polyimide film casting tensioning mechanism includes a base 1, two fixed seats 6 are fixedly installed on the upper surface of the base 1, a fixed column 8 is fixedly installed on the top of the fixed seat 6, a movable sleeve 9 is movably sleeved on the outer side of the fixed column 8, a tensioning roller 10 is rotatably installed between the two movable sleeves 9, and a counterweight block 11 is provided on one side of the movable sleeve 9. When in use, the polyimide film 7 passes under the tensioning roller 10 and contacts the tensioning roller 10.

[0023] In this embodiment, the weight of the tensioning roller 10 is adjusted by configuring different numbers of counterweights 11 so that the tensioning roller 10 applies pressure to the polyimide film 7 to ensure the stability of the polyimide film 7 during the conveying and tensioning process and avoid deformation due to excessive tension.

[0024] As a technical optimization solution of the present invention, a plurality of balls 12 are provided on the inner side of the movable sleeve 9 , and the balls 12 are in rolling contact with the fixed column 8 .

[0025] In this embodiment, the movable sleeve 9 is slidably sleeved on the outer side of the fixed column 8, and the tensioning roller 10 can apply pressure to the polyimide film 7 with its own weight during the conveying process of the polyimide film 7, so as to improve production efficiency.

[0026] As a technical optimization solution of the present invention, a threaded rod 13 is fixedly installed on one side of the movable sleeve 9, a locking nut 14 is threadedly sleeved on the outer side of the threaded rod 13, and the counterweight 11 is movably sleeved on the threaded rod 13.

[0027] In this embodiment: the locking nut 14 is threadedly installed on the outside of the threaded rod 13, the counterweight block 11 sleeved on the outside of the threaded rod 13 is installed and fixed, and the weight of the tensioning roller 10 is adjusted to facilitate the tensioning roller 10 to apply pressure to the polyimide film 7 to ensure the stability of the polyimide film 7 during the conveying and tensioning process, thereby improving production quality.

[0028] As a technical optimization solution of the present invention, a first conveyor rack 2 and a second conveyor rack 3 are fixedly installed on the top of the base 1. The first conveyor rack 2 is located on the left side of the second conveyor rack 3, and the second conveyor rack 3 is located on the left side of the fixed seat 6.

[0029] In this embodiment: conveying rollers are provided on the inner sides of the first conveying rack 2 and the second conveying rack 3. When in use, the polyimide film 7 passes under the conveying rollers provided on the first conveying rack 2, and then passes over the conveying rollers provided on the second conveying rack 3. The polyimide film 7 is installed above the conveying mechanism, thereby facilitating the conveyance of the polyimide film 7.

[0030] As a technical optimization solution of the present invention, a third conveyor rack 4 and a fourth conveyor rack 5 are fixedly installed on the top of the base 1. The fourth conveyor rack 5 is located on the right side of the third conveyor rack 4, and the third conveyor rack 4 is located on the right side of the fixed seat 6.

[0031] In this embodiment, conveying rollers are also provided on the inner sides of the third conveying rack 4 and the fourth conveying rack 5. When in use, the polyimide film 7 is passed over the conveying rollers provided on the third conveying rack 4 and then passed under the conveying rollers provided on the fourth conveying rack 5, thereby installing the polyimide film 7 above the conveying mechanism, which is convenient for conveying and collecting the polyimide film 7.

[0032] As a technical optimization solution of the utility model, when in use, the polyimide film 7 is located below the first conveyor rack 2 and the fourth conveyor rack 5 and above the second conveyor rack 3 and the third conveyor rack 4; the first conveyor rack 2 and the fourth conveyor rack 5 are symmetrically arranged with the tensioning roller 10, and the second conveyor rack 3 and the third conveyor rack 4 are symmetrically arranged with the tensioning roller 10.

[0033] In this embodiment, the tensioning roller 10 applies pressure to the polyimide film 7 so that the polyimide film 7 can maintain a conveying tension during the conveying process, thereby avoiding deformation of the polyimide film 7 caused by excessive tension, thereby improving the production quality of the polyimide film 7.

[0034] Working principle: When in use, first pass the polyimide film 7 from the left side to the right side of the utility model, and pass it in turn under the conveying roller set by the first conveying frame 2, above the conveying roller set by the second conveying frame 3, under the tensioning roller 10, above the conveying roller set by the third conveying frame 4 and under the conveying roller set by the fourth conveying frame 5. By installing the counterweight block 11 on the outside of the threaded rod 13, the overall weight of the tensioning roller 10 is increased, and the free gravity of the tensioning roller 10 is used to facilitate the tensioning degree of the polyimide film 7 to ensure the tensioning force of the polyimide film 7 during the conveying process, avoid deformation of the polyimide film 7 during the conveying process, and thus improve the production quality of the polyimide film 7.

[0035] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature rivets and welding in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field. All electrical equipment in the present invention is powered by an external power supply.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A polyimide film casting tensioning mechanism, comprising a base (1), characterized in that: Two fixed seats (6) are fixedly installed on the upper surface of the base (1), a fixed column (8) is fixedly installed on the top of the fixed seat (6), a movable sleeve (9) is movably sleeved on the outer side of the fixed column (8), a tensioning roller (10) is rotatably installed between the two movable sleeves (9), and a counterweight block (11) is provided on one side of the movable sleeve (9).

2. A polyimide film casting tensioning mechanism according to claim 1, characterized in that: A plurality of balls (12) are provided on the inner side of the movable sleeve (9), and the balls (12) are in rolling contact with the fixed column (8).

3. The polyimide film casting tensioning mechanism according to claim 1, characterized in that: A threaded rod (13) is fixedly mounted on one side of the movable sleeve (9), a locking nut (14) is threadedly sleeved on the outer side of the threaded rod (13), and the counterweight (11) is movably sleeved on the threaded rod (13).

4. The polyimide film casting tensioning mechanism according to claim 1, characterized in that: A first conveying frame (2) and a second conveying frame (3) are fixedly mounted on the top of the base (1); the first conveying frame (2) is located on the left side of the second conveying frame (3), and the second conveying frame (3) is located on the left side of the fixed seat (6).

5. A polyimide film casting tensioning mechanism according to claim 4, characterized in that: A third conveying frame (4) and a fourth conveying frame (5) are fixedly mounted on the top of the base (1); the fourth conveying frame (5) is located on the right side of the third conveying frame (4); and the third conveying frame (4) is located on the right side of the fixed seat (6).

6. A polyimide film casting tensioning mechanism according to claim 5, characterized in that: The first conveying frame (2) and the fourth conveying frame (5) are symmetrically arranged with a tensioning roller (10), and the second conveying frame (3) and the third conveying frame (4) are symmetrically arranged with a tensioning roller (10).

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