A roll flattening mechanism for a film web product

Abstract

The utility model relates to thin film roll stock processing equipment technical field especially a kind of roll shaft flattening mechanism of thin film roll stock product.This kind of roll shaft flattening mechanism of thin film roll stock product, including rubber roll and the bearing block being installed in the both ends of rubber roll, rubber roll includes roller body and the rubber roll mounting shaft being installed in the both sides of roller body, rubber roll mounting shaft is connected with bearing block arrangement;The outer wall of roller body is wrapped with rubber layer, and roller body is convex roll.The utility model has simple structure, is equipped with rubber roll, bearing block, first adjusting block and second adjusting block structure, utilizes convex roll angle to effectively flatten product;Rubber roll is designed as convex roll, and the outer wrapping of roller body has rubber layer, avoids thin film product contact dust, cooperates with front and rear circular roll shaft to carry out limited thin film roll stock product flattening, so that product is not deviated in horizontal direction;Rubber layer can effectively protect product surface, and the damping characteristic of rubber roll can buffer instantaneous tension impact in unwinding process, absorbs tiny vibration.

Description

Technical Field

[0001] This utility model relates to the technical field of film roll processing equipment, and in particular to a roller flattening mechanism suitable for flexible electronic (such as OLED display film) and high-end packaging (such as food and pharmaceutical composite film) film roll products. Background Technology

[0002] With the rapid development of flexible electronics (such as OLED display films) and high-end packaging (such as food and pharmaceutical composite films), thin film materials are trending towards ultra-thinness and functionalization (such as coatings and microstructures). Traditional flattening mechanisms mostly use metal rollers or ordinary rubber rollers, which have the following problems:

[0003] (1) Risk of material surface damage: Metal rollers have high hardness and are easy to scratch sensitive surfaces such as optical films and coating films; Inferior rubber rollers may cause chemical migration due to improper formulation (such as plasticizer precipitation and contamination of medical films);

[0004] (2) Unstable flattening effect and insufficient tension control accuracy: There are still wavy lines or local wrinkles at the edge of the film; the flattening effect drops sharply when running at high speed; the film shakes or deviates laterally, causing the visual inspection area to shift.

[0005] (3) Poor material compatibility: The hardness / chemical compatibility between the roller surface material and the flattened material is not optimized; the surface roughness control is insufficient (such as low processing precision of metal rollers or aging and cracking of rubber rollers);

[0006] (4) Dynamic response lag: unreasonable roller layout design (such as insufficient number of flattening rollers or fixed angle); mismatch between the elastic modulus of the rubber roller and the film stress, resulting in dynamic response lag; the friction coefficient of the rubber roller drifts with temperature / humidity changes (such as polyurethane rollers becoming sticky at high temperatures).

[0007] (5) Ordinary flattening rollers cannot meet the stress release requirements of sensitive materials (such as copper foil or optical film with a thickness of <10μm).

[0008] In existing technologies, flattening mechanisms typically consist of metal rollers at fixed angles or a single rubber roller, which cannot meet the stress release requirements of ultra-thin films and lacks dynamic adjustment capabilities, resulting in low production efficiency and high detection error rates. Therefore, there is an urgent need for a flattening mechanism that can both flatten and protect the surface. Utility Model Content

[0009] The technical problem this invention aims to solve is to overcome the shortcomings of existing technologies and provide a roller flattening mechanism for film roll products. This invention employs a convex coated roller to reduce misjudgments by the vision system and simultaneously enhances adaptability to sensitive film roll products, thereby improving both inspection yield and product quality stability.

[0010] The technical solution adopted by this utility model to solve its technical problem is: a roller flattening mechanism for film roll products, including a rubber roller and bearing seats installed at both ends of the rubber roller. The rubber roller includes a roller body and a rubber roller mounting shaft installed on both sides of the roller body. The rubber roller mounting shaft is connected to the bearing seat. The outer wall of the roller body is covered with a rubber layer, and the roller body is a convex roller.

[0011] The convex roller structure effectively flattens the film roll, reduces stress concentration at the film edges, and prevents wrinkling or misalignment. A layer of adhesive coating increases friction between the roller and the film while preventing scratches on the film surface, making it suitable for high-precision film processing. Bearing housings provide support, ensuring stable roller rotation and improving the smoothness of the flattening mechanism; furthermore, the bearing housings can be adapted for different detection positions on the actual film roll machine.

[0012] Furthermore, the distance L between the highest point of the protrusion on the rubber roller and the center axis of the roller mounting shaft is 10-20mm, preferably 15mm. By reasonably setting the protrusion height, uniform force is ensured on the film, thus improving the flattening quality.

[0013] Furthermore, the thickness of the adhesive layer is 1–8 mm, preferably 3 mm. A suitable adhesive layer thickness can both buffer the pressure on the film and ensure that it is not easily worn during long-term use.

[0014] Furthermore, the rubber roller mounting shaft includes a connecting shaft and a mounting rod connected together. The connecting shaft is connected to the roller body, and the mounting rod is inserted into the bearing seat.

[0015] Furthermore, it also includes a first adjusting block, which includes a first body. The center of the first body has an inner hole for easy insertion of the mounting rod, and one side of the first body has a mounting protrusion for engaging the inner ring of the bearing seat. The inner hole and the mounting protrusion are concentrically arranged.

[0016] The first body has a plurality of first adjustment holes distributed around the mounting protrusion; the bearing seat has a bearing seat adjustment hole that mates with the first adjustment holes.

[0017] The bearing housing adjustment hole is installed in conjunction with the first adjustment hole, which can adjust the installation angle between the first adjustment block and the bearing housing, thereby adjusting the axial or angular offset of the rubber roller and precisely controlling the film tension. Finally, the rubber roller can adapt to different film roll products for flattening, ensuring the consistency of the visual inspection area and improving production efficiency and quality.

[0018] Furthermore, both the inner hole and the mounting rod are square structures. The square structure prevents relative rotation between the adjusting block and the mounting rod, ensuring that the adjusted angle or position remains fixed, avoiding adjustment failure due to vibration, and improving structural stability. The square fit reduces clearance, enhances structural rigidity, and also improves transmission accuracy.

[0019] Furthermore, the first adjustment hole is an elongated arc-shaped hole. This arc-shaped hole design allows for adjustment of the roller angle within a certain circumferential range, compensating for installation errors or adapting to the flattening requirements of films of different widths, optimizing the stress distribution on the film, and further improving the flattening effect. Additionally, bolts can be fixed at any position within the arc-shaped hole, providing multi-point stable support.

[0020] Furthermore, it also includes a second adjusting block, which includes a second body. The second body has a second mounting hole for mounting with the mounting rod. The mounting rod has a plurality of adjusting holes that mate with the second mounting hole. The plurality of adjusting holes are distributed along the axial direction of the mounting rod. The second adjusting block has a second bolt hole, and the first adjusting block has a first bolt hole that mates with the second bolt hole.

[0021] The second adjusting block, through its axially distributed second mounting holes, engages with the mounting rod to achieve fine adjustment of the axial position of the rubber roller. The second bolt hole connects with the first bolt hole of the first adjusting block, thereby adjusting the distance between the first and second adjusting blocks. This is suitable for different product flattening positions and ultimately forms a dual-dimensional adjustment mechanism of "axial + circumferential", significantly improving the flexibility and accuracy of product flattening. The bolt connection ensures that the adjusted position is firm and prevents loosening.

[0022] Furthermore, the second body is a split structure that facilitates installation with the mounting rod. The split design allows it to be disassembled and fitted onto the mounting rod, adapting to confined spaces or complex structures.

[0023] Furthermore, the outer diameter of the connecting shaft is larger than the thickness of the mounting rod, and a step is formed at the connection between the connecting shaft and the mounting rod to limit the positioning of the second adjusting block. The step design of the connecting shaft and the mounting rod axially limits the second adjusting block, preventing it from shifting due to vibration or force, ensuring long-term stability of the adjusted position, and improving the reliability of equipment operation.

[0024] The beneficial effects of this utility model are: This utility model is reasonably designed and easy to operate, meeting the testing requirements of high-speed flattening inspection mechanisms and realizing non-destructive high-speed inspection of film roll products. Specifically, it has the following advantages:

[0025] (1) It is equipped with a rubber roller, bearing seat, first adjusting block and second adjusting block structure, and uses the angle of the convex roller to effectively flatten the product;

[0026] (2) The roller is designed as a convex roller and the roller body is wrapped with a layer of adhesive to prevent the film products from coming into contact with dust. It works with the front and rear circular rollers to flatten the film roll products in a limited way, so that the products do not shift in the lateral direction.

[0027] (3) The rubber layer can effectively protect the product surface, and the damping characteristics of the rubber roller can buffer the instantaneous tension impact during the unwinding process and absorb minor vibrations.

[0028] (4) The bearing seat adjustment hole is installed in conjunction with the first adjustment hole, which can adjust the installation angle between the first adjustment block and the bearing seat, thereby adjusting the axial or angular offset of the rubber roller. It can adapt to different film roll products for flattening, ensuring the consistency of the visual inspection area and improving production efficiency and quality.

[0029] (5) Adjusting the distance between the first adjustment block and the second adjustment block can adapt to the flattening position of different products, and the adjustment is flexible and reliable. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a longitudinal sectional view of the rubber roller mounting shaft;

[0033] Figure 3 This is a schematic diagram of the installation of the first adjusting block, the second adjusting block, the bearing housing, and the rubber roller mounting shaft.

[0034] Figure 4 yes Figure 3 A diagram from another perspective;

[0035] Figure 5 This is a schematic diagram of the installation of the first adjusting block, the second adjusting block, and the rubber roller mounting shaft;

[0036] Figure 6 This is a schematic diagram of the installation of the second adjusting block and the rubber roller mounting shaft.

[0037] In the diagram: 1. Rubber roller, 2. First adjusting block, 3. Second adjusting block, 4. Bearing seat, 5. Rubber roller mounting shaft, 11. Roller body, 12. Rubber layer, 21. First body, 22. Mounting protrusion, 23. Inner hole, 24. First adjusting hole, 25. First bolt hole, 31. Second body, 32. Second bolt hole, 33. Second mounting hole, 41. Bearing seat adjusting hole, 51. Connecting shaft, 52. Mounting rod, 53. Adjusting hole. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0039] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] like Figures 1-6 The roller flattening mechanism of the film roll product shown includes a rubber roller 1 and bearing seats 4 installed at both ends of the rubber roller 1. The rubber roller 1 includes a roller body 11 and a rubber roller mounting shaft 5 installed on both sides of the roller body 11. The rubber roller mounting shaft 5 is connected to the bearing seat 4. The outer wall of the roller body 11 is covered with a rubber layer 12, and the roller body 11 is a convex roller.

[0042] The convex roller structure effectively flattens the film roll, reduces stress concentration at the film edges, and prevents wrinkling or misalignment. The adhesive layer 12 enhances the friction between the roller and the film while preventing scratches on the film surface, making it suitable for high-precision film processing.

[0043] The distance L between the highest point of the protrusion on the rubber roller 1 and the center axis of the rubber roller mounting shaft 5 is 15mm; the thickness of the rubber layer 12 is 3mm. The roller body 11 is made of SUS304, and the rubber layer 12 is made of white nitrile rubber.

[0044] The rubber roller mounting shaft 5 includes a connecting shaft 51 and a mounting rod 52 connected together. The connecting shaft 51 is connected to the roller body 11, and the mounting rod 52 is inserted into the bearing seat 4.

[0045] The roller flattening mechanism for this film roll product also includes a first adjusting block 2. The first adjusting block 2 includes a first body 21. The center of the first body 21 has an inner hole 23 for easy insertion of the mounting rod 52. One side of the first body 21 has a mounting protrusion 22 that engages with the inner ring of the bearing seat 4. The inner hole 23 and the mounting protrusion 22 are concentrically arranged. The first body 21 has a plurality of first adjusting holes 24, which are distributed around the mounting protrusion 22. The bearing seat 4 has a bearing seat adjusting hole 41 that mates with the first adjusting holes 24. The inner hole 23 and the mounting rod 52 are both square structures; the first adjusting holes 24 are arc-shaped elongated holes.

[0046] The bearing seat adjustment hole 41 is installed in conjunction with the first adjustment hole 24, which can adjust the installation angle between the first adjustment block 2 and the bearing seat 4, thereby adjusting the axial or angular offset of the rubber roller 1 and precisely controlling the film tension; finally, the rubber roller 1 can be adapted to different film roll products for flattening.

[0047] The roller flattening mechanism for this film roll product also includes a second adjusting block 3. The second adjusting block 3 includes a second body 31, on which a second mounting hole 33 is provided for mounting the mounting rod 52. The mounting rod 52 has several adjusting holes 53 that mate with the second mounting hole 33, and the adjusting holes 53 are distributed along the axial direction of the mounting rod 52. The second adjusting block 3 has a second bolt hole 32, and the first adjusting block 2 has a first bolt hole 25 that mates with the second bolt hole 32. The second body 31 is a split structure that facilitates installation with the mounting rod 52. The outer diameter of the connecting shaft 51 is larger than the thickness of the mounting rod 52, and a step is formed at the connection between the connecting shaft 51 and the mounting rod 52 to limit the movement of the second adjusting block 3.

[0048] The second adjusting block 3 cooperates with the mounting rod 52 through the axially distributed second mounting hole 33 to achieve fine adjustment of the axial position of the rubber roller 1; the second bolt hole 32 is connected to the first bolt hole 25, that is, to adjust the distance between the first adjusting block 2 and the second adjusting block 3, which is suitable for different product flattening positions.

[0049] The roller flattening mechanism for this type of film roll product works as follows:

[0050] (1) Insert the mounting rod 52 into the inner hole 23 of the first adjusting block 2, then insert the mounting protrusion 22 into the inner ring of the bearing seat 4, adjust the installation angle of the rubber roller 1, and tighten the bolt after passing through the bearing seat adjustment hole 41 and the first adjustment hole 24.

[0051] (2) Install the second adjusting block 3 and the mounting rod 52, adjust the distance between the first adjusting block 2 and the second adjusting block 3, and then tighten the bolt after passing through the second bolt hole 32 and the first bolt hole 25.

[0052] (3) During operation, the rubber roller 1 is fixed and the raised part flattens the product.

[0053] In summary, this roller flattening mechanism for film roll products has a simple structure and is easy to operate, meeting the testing requirements of high-speed flattening inspection mechanisms and enabling non-destructive high-speed inspection of film roll products. Specifically, it has the following advantages:

[0054] (1) It is equipped with a structure of rubber roller 1, bearing seat 4, first adjusting block 2 and second adjusting block 3, and uses the angle of the convex roller to effectively flatten the product;

[0055] (2) The rubber roller 1 is designed as a convex roller body 11, and the roller body 11 is wrapped with a rubber layer 12 to prevent the film product from coming into contact with dust. It works with the front and rear circular rollers to flatten the film roll product in a limited way, so that the product has no deviation in the lateral direction.

[0056] (3) The rubber layer 12 can effectively protect the product surface, and the damping characteristics of the rubber roller can buffer the instantaneous tension impact during the unwinding process and absorb minor vibrations.

[0057] (4) The bearing seat adjustment hole 41 is installed in conjunction with the first adjustment hole 24, which can adjust the installation angle between the first adjustment block 2 and the bearing seat 4, thereby adjusting the axial or angular offset of the rubber roller 1. This can adapt to different film roll products for flattening, ensuring the consistency of the visual inspection area and improving production efficiency and quality.

[0058] (5) Adjusting the distance between the first adjustment block 2 and the second adjustment block 3 can adapt to the flattening position of different products, and the adjustment is flexible and reliable.

[0059] The above description is only a specific embodiment of the present utility model. Various examples and illustrations do not constitute a limitation on the substantive content of the present utility model. Those skilled in the art can make modifications or variations to the above-described specific embodiments after reading the description without departing from the essence and scope of the utility model.

Claims

1. A roller flattening mechanism for a film roll product, characterized in that: It includes a rubber roller (1) and bearing seats (4) installed at both ends of the rubber roller (1). The rubber roller (1) includes a roller body (11) and a rubber roller mounting shaft (5) installed on both sides of the roller body (11). The rubber roller mounting shaft (5) is connected to the bearing seat (4). The outer wall of the roller body (11) is covered with a rubber layer (12), and the roller body (11) is a convex roller.

2. The roller flattening mechanism for a film roll product according to claim 1, characterized in that: The distance L between the highest point of the protrusion of the rubber roller (1) and the center axis of the rubber roller mounting shaft (5) is 10-20mm.

3. The roller flattening mechanism for a film roll product according to claim 1, characterized in that: The thickness of the adhesive layer (12) is 1 to 8 mm.

4. The roller flattening mechanism for a film roll product according to claim 1, characterized in that: The rubber roller mounting shaft (5) includes a connecting shaft (51) and a mounting rod (52) connected together. The connecting shaft (51) is connected to the roller body (11), and the mounting rod (52) is inserted into the bearing seat (4).

5. The roller flattening mechanism for a film roll product according to claim 4, characterized in that: It also includes a first adjustment block (2), which includes a first body (21). The first body (21) has an inner hole (23) in the center to facilitate the insertion of the mounting rod (52). The first body (21) has a mounting protrusion (22) on one side to fit into the inner ring of the bearing seat (4). The inner hole (23) and the mounting protrusion (22) are concentrically arranged. The first body (21) has a plurality of first adjustment holes (24), which are distributed around the mounting protrusion (22); the bearing seat (4) has a bearing seat adjustment hole (41) that cooperates with the first adjustment holes (24).

6. The roller flattening mechanism for a film roll product according to claim 5, characterized in that: Both the inner hole (23) and the mounting rod (52) are square structures.

7. The roller flattening mechanism for a film roll product according to claim 5, characterized in that: The first adjustment hole (24) is an arc-shaped elongated hole.

8. The roller flattening mechanism for a film roll product according to claim 5, characterized in that: It also includes a second adjusting block (3), which includes a second body (31). The second body (31) is provided with a second mounting hole (33) for mounting the mounting rod (52). The mounting rod (52) is provided with a plurality of adjusting holes (53) that cooperate with the second mounting hole (33). The plurality of adjusting holes (53) are distributed along the axial direction of the mounting rod (52). The second adjusting block (3) is provided with a second bolt hole (32), and the first adjusting block (2) is provided with a first bolt hole (25) that cooperates with the second bolt hole (32).

9. The roller flattening mechanism for a film roll product according to claim 8, characterized in that: The second body (31) is a split structure that facilitates installation with the mounting rod (52).

10. The roller flattening mechanism for a film roll product according to claim 8, characterized in that: The outer diameter of the connecting shaft (51) is greater than the thickness of the mounting rod (52), and a step is formed at the connection between the connecting shaft (51) and the mounting rod (52) to limit the second adjusting block (3).

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