Film layer laminating equipment
By using pressure rollers of unequal diameters in the film lamination equipment to generate a speed difference, the automatic cutting of the film layer and the board is achieved, which solves the problem of slow cutting speed in the existing technology and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
AI Technical Summary
Existing hot pressing equipment requires a pause when cutting the film layer and aluminum plate, resulting in slow cutting speed and low efficiency.
The first and second pressure rollers have unequal diameters, which creates a speed difference and an unbalanced traction force, causing the film layer to be automatically cut off from the board during the conveying process, eliminating the traditional cutting step.
This technology enables continuous conveying and cutting of the membrane layer, improving production efficiency, reducing cutting steps, and enhancing overall production efficiency.
Smart Images
Figure CN224075033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate coating technology, and in particular to a film lamination equipment. Background Technology
[0002] In the field of aluminum plate coating technology, hot pressing is currently the most common method for applying film layers to the surface of aluminum plates. Existing hot pressing equipment uses pressure rollers to press the aluminum plate and film layer together by heating, and a cutting mechanism is set at the unloading end of the hot pressing equipment to cut the film layer. The cutting methods used in traditional hot pressing equipment are thermal melting cutting or blade cutting. Both of these cutting methods require a short pause in the aluminum plate during the cutting process, resulting in slow cutting speeds and low cutting efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a film lamination device to improve the cutting efficiency of film material.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A film lamination apparatus for laminating a film layer with a sheet material, including a rolling assembly;
[0006] The rolling assembly includes a first pressure roller and a second pressure roller;
[0007] A variable-pitch rolling gap is formed between the first pressure roller and the second pressure roller, and the rolling gap is used to allow the film layer to pass through the board;
[0008] The diameters of the first pressure roller and the second pressure roller are not equal, so that the first pressure roller and the second pressure roller have a speed difference.
[0009] Furthermore, the spacing of the rolling gap is -0.4~0.4mm.
[0010] Furthermore, the diameter of the first pressure roller is smaller than the diameter of the second pressure roller.
[0011] Furthermore, the first pressure roller and the second pressure roller are arranged sequentially in the vertical direction.
[0012] Furthermore, both the first pressure roller and the second pressure roller are rubber rollers.
[0013] Furthermore, the film lamination equipment also includes a first conveying mechanism and a second conveying mechanism for conveying release paper;
[0014] The first conveying mechanism, the rolling assembly, and the second conveying mechanism are arranged sequentially along the conveying direction.
[0015] Furthermore, the conveying surface of the first conveying mechanism, the lower edge of the rolling gap, and the conveying surface of the second conveying mechanism are flush.
[0016] Furthermore, the film lamination equipment also includes a feeding roller;
[0017] The feeding roller is located on the side of the rolling assembly closer to the first conveying mechanism, and the plane on which the axis of the feeding roller is located is higher than the plane on which the top of the rolling assembly is located.
[0018] Furthermore, the film lamination equipment also includes a heating component;
[0019] The first pressure roller and the second pressure roller are electrically connected to the heating assembly, respectively.
[0020] Furthermore, the film lamination equipment also includes a first drive mechanism and a second drive mechanism;
[0021] The first driving mechanism is connected to the first pressure roller, and the second driving mechanism is connected to the second pressure roller. The first driving mechanism and the second driving mechanism rotate at the same speed.
[0022] The beneficial effects of this utility model are as follows: Since the diameters of the first pressure roller and the second pressure roller are not equal, when the first pressure roller and the second pressure roller have the same or similar angular velocities, a difference in linear velocity will be generated between the first pressure roller and the second pressure roller, so that the first pressure roller and the second pressure roller form an unbalanced traction force. After the film layer separates from the board, it will be directly cut under the action of the unbalanced traction force. During the process of the film layer being cut, the board continues to be conveyed without interruption. Compared with the prior art, it can replace the cutting mechanism and reduce the cutting steps, thereby improving production efficiency. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of the medium-pressure compounding equipment of this utility model;
[0024] Figure 2 This is a partial sectional view of the pressing device in this utility model;
[0025] Figure 3 This is a schematic diagram illustrating the working principle of the medium-pressure compounding device of this utility model. Figure 1 (When the previous sheet enters the rolling gap);
[0026] Figure 4 This is a schematic diagram illustrating the working principle of the medium-pressure compounding device of this utility model. Figure 2 (When the next sheet enters the rolling gap).
[0027] Label Explanation:
[0028] 1. Membrane layer; 2. Sheet material;
[0029] 3. Rolling assembly; 31. First pressure roller; 32. Second pressure roller; 33. Rolling gap;
[0030] 4. Release paper; 5. First conveying mechanism; 6. Second conveying mechanism; 7. Feeding roller. Detailed Implementation
[0031] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0032] Please refer to Figures 1-4 A film lamination device for laminating a film layer 1 with a sheet material 2 includes a rolling assembly 3; the rolling assembly 3 includes a first pressure roller 31 and a second pressure roller 32; a rolling gap 33 with a variable spacing is formed between the first pressure roller 31 and the second pressure roller 32, the rolling gap 33 being used for the film layer 1 and the sheet material 2 to pass through; the diameter of the first pressure roller 31 is not equal to the diameter of the second pressure roller 32, so that the first pressure roller 31 and the second pressure roller 32 have a speed difference.
[0033] The first pressure roller 31 and the second pressure roller 32 rotate in opposite directions (see reference). Figure 2 (The direction indicated by the curved arrow). It is worth noting that... Figure 2 The direction indicated by the straight arrow in the middle is the transmission direction.
[0034] Understandably, since the diameters of the first pressure roller 31 and the second pressure roller 32 are not equal, when the first pressure roller 31 and the second pressure roller 32 have the same or similar angular velocities, a difference in linear velocity will be generated between the first pressure roller 31 and the second pressure roller 32, causing an unbalanced traction force between the first pressure roller 31 and the second pressure roller 32. After the film layer 1 separates from the plate 2, it will be directly cut under the action of the unbalanced traction force. During the process of the film layer 1 being cut, the plate 2 is continuously conveyed without interruption. Compared with the prior art, it can replace the cutting mechanism and reduce the cutting steps, thereby improving production efficiency. The variable spacing of the rolling gap 33 is due to the relatively high pressure required for pressing the board 2, release paper 4, and film layer 1 together. After the board 2 enters the rolling gap 33, the spacing of the rolling gap 33 is adaptively increased. Conversely, after the board 2 leaves the rolling gap 33, the pressure from the first pressure roller 31 remains constant, causing the rolling gap 33 to adaptively decrease and adhere the film layer 1 to the release paper 4. This ensures that the release paper 4 and the first pressure roller 31 work together to apply traction to the film layer 1, causing the film layer 1 to break. The variable spacing of the rolling gap 33 can be caused by changes in the axial distance between the two pressure rollers or by deformation of the surfaces of the two pressure rollers.
[0035] Specifically, during the conveying process, the board 2 is placed on the release paper 4, meaning the second pressure roller 32 is actually in contact with the release paper 4, while the first pressure roller 31 is in contact with the film layer 1. When the board 2 enters the rolling gap 33, the film layer 1, the board 2, and the release paper 4 all enter the rolling gap 33 together. After the board 2 leaves the rolling gap 33, the film layer 1 and the release paper 4 adhere to each other in the rolling gap 33. The traction force of the second pressure roller 32 on the film layer 1 is actually applied to the release paper 4. The release paper 4 and the first pressure roller 31 work together to create an unbalanced traction force on both sides of the film layer 1, causing the film layer 1 to break.
[0036] In some embodiments, the spacing of the rolling gap 33 is -0.4 to 0.4 mm. A negative rolling gap 33 occurs because increased rolling pressure causes corresponding deformation of the surfaces of the first pressure roller 31 and the second pressure roller 32. The spacing of the rolling gap 33 should not be too large to ensure that after the board 2 moves out of the rolling gap 33, the film layer 1 can adhere to the release paper 4, and the release paper 4 and the first pressure roller 31 simultaneously apply traction force to the film layer 1, ensuring the reliability of the film layer 1's material breakage. Specifically, because the pressure setting value of the first pressure roller 31 is relatively large, after the board 2 leaves the rolling gap 33, the first pressure roller 31 can apply pressure to the film layer 1, causing the film layer 1 to contact the release paper 4. Preferably, the spacing of the rolling gap 33 is -0.1 mm.
[0037] In some embodiments, the diameter of the first pressure roller 31 is smaller than the diameter of the second pressure roller 32. The linear velocity (v), angular velocity (w), and roller radius (r) have the following relationship: v = w × r. Therefore, when the angular velocities of the first pressure roller 31 and the second pressure roller 32 are equal, the roller with the larger radius has a greater linear velocity. The cutting speed and flatness of the film layer 1 also depend on the strain rate. The strain rate is positively correlated with the difference in linear velocities between the first pressure roller 31 and the second pressure roller 32; that is, the greater the difference in linear velocities between the first pressure roller 31 and the second pressure roller 32, the faster the strain rate, the faster the cutting speed of the film layer 1, and the flatter the cut surface of the film layer 1. Taking a PVC film with a thickness of 0.05 mm as an example, the difference in linear velocities between the first pressure roller 31 and the second pressure roller 32 should be greater than or equal to 0.55 m / min. Further, the difference in linear velocities between the first pressure roller 31 and the second pressure roller 32 is 0.55 m / min to 0.9 m / min.
[0038] In some embodiments, the first pressure roller 31 and the second pressure roller 32 are arranged sequentially from top to bottom in the vertical direction, so that the cutting position of the film layer 1 is close to the plate 2 after film coating, reducing the waste of the film layer 1, and ensuring that the pressure applied by the first pressure roller 31 acts vertically on the second pressure roller 32, ensuring the pressing force between the first pressure roller 31 and the second pressure roller 32.
[0039] In some embodiments, both the first pressure roller 31 and the second pressure roller 32 are rubber rollers. Selecting rubber rollers to press and convey the sheet 2 can increase the friction between the first pressure roller 31 and the film layer 1, as well as the friction between the second pressure roller 32 and the release paper 4. Preferably, the release paper 4 does not slip with the second pressure roller 32 during the conveying process, that is, at least the linear velocity of the part of the release paper 4 in contact with the second pressure roller 32 is consistent with that of the second pressure roller 32, so that the release paper 4 and the first pressure roller 31 cooperate to apply different traction forces on both sides of the film layer 1.
[0040] In some embodiments, the film lamination equipment further includes a first conveying mechanism 5 and a second conveying mechanism 6 for conveying the release paper 4; the first conveying mechanism 5, the rolling assembly 3, and the second conveying mechanism 6 are arranged sequentially along the conveying direction. The first conveying mechanism 5 and the second conveying mechanism 6 are used to convey and support the release paper 4 and the board 2. Driven by the first conveying mechanism 5 and the second conveying mechanism 6, the automatic transport of the board 2 is realized. Combined with the rolling assembly 3, automatic material cutting is realized. Compared with the prior art, the material cutting efficiency of the film 1 is higher.
[0041] In some embodiments, the conveying surface of the first conveying mechanism 5, the lower edge of the rolling gap 33, and the conveying surface of the second conveying mechanism 6 are flush to improve the stability of the conveying process of the board 2 and to improve the adhesion of the board 2, the release paper 4, and the film layer 1.
[0042] In some embodiments, the film lamination equipment further includes a feeding roller 7; the feeding roller 7 is located on the side of the rolling assembly 3 near the first conveying mechanism 5, and the plane of the axis of the feeding roller 7 is higher than the plane of the top of the rolling assembly 3. The feeding roller 7 is configured to place the film layer 1 and cooperate with the first pressure roller 31 to keep the film layer 1 in a taut state, which facilitates subsequent material cutting, and enables the film layer 1 to be quickly covered on the surface of the board 2 as the board 2 passes through the rolling gap 33.
[0043] In some embodiments, the film lamination equipment further includes a heating component; the first pressure roller 31 and the second pressure roller 32 are electrically connected to the heating component. The heating component is configured to heat the first pressure roller 31 and the second pressure roller 32, so that the first pressure roller 31 and the second pressure roller 32 are heated during the process of covering the film layer 1 onto the surface of the board 2, thereby improving the bonding tightness between the film layer 1 and the release paper 4 and the board 2.
[0044] In some embodiments, the film lamination apparatus further includes a first driving mechanism and a second driving mechanism; the first driving mechanism is drivenly connected to the first pressure roller 31, and the second driving mechanism is drivenly connected to the second pressure roller 32, and the rotational speeds of the first driving mechanism and the second driving mechanism are equal. The first driving mechanism and the second driving mechanism are used to control the rotational speeds of the first pressure roller 31 and the second pressure roller 32, and the first driving mechanism is also used to control the downward pressure of the first pressure roller 31.
[0045] Embodiment 1 of this utility model is as follows:
[0046] In this embodiment, the plate 2 used is an aluminum plate, and the film layer 1 is a transparent film.
[0047] A film lamination device for laminating a film layer 1 with a sheet material 2 includes a rolling assembly 3. The rolling assembly 3 includes a first pressure roller 31 and a second pressure roller 32 arranged sequentially from top to bottom in a vertical direction. A rolling gap 33 with a variable spacing is formed between the first pressure roller 31 and the second pressure roller 32, and the rolling gap 33 is used for the film layer 1 and the sheet material 2 to pass through. The diameter of the first pressure roller 31 is smaller than the diameter of the second pressure roller 32, so that the first pressure roller 31 and the second pressure roller 32 have a speed difference.
[0048] In this embodiment, both the first pressure roller 31 and the second pressure roller 32 are rubber rollers.
[0049] In this embodiment, the spacing of the rolling gap 33 is -0.1mm.
[0050] In this embodiment, the film lamination equipment further includes a first conveying mechanism 5 and a second conveying mechanism 6 for conveying the release paper 4; the first conveying mechanism 5, the rolling assembly 3 and the second conveying mechanism 6 are arranged sequentially along the conveying direction; the conveying surface of the first conveying mechanism 5, the lower edge of the rolling gap 33 and the conveying surface of the second conveying mechanism 6 are flush.
[0051] In this embodiment, the film lamination equipment also includes a feeding roller 7; the feeding roller 7 is located on the side of the rolling assembly 3 near the first conveying mechanism 5, and the plane on which the axis of the feeding roller 7 is located is higher than the plane on which the top of the rolling assembly 3 is located.
[0052] In this embodiment, the film lamination equipment further includes a heating component; the first pressure roller 31 and the second pressure roller 32 are electrically connected to the heating component.
[0053] In this embodiment, the film lamination equipment further includes a first driving mechanism and a second driving mechanism; the first driving mechanism is drivenly connected to the first pressure roller 31, and the second driving mechanism is drivenly connected to the second pressure roller 32, and the rotational speeds of the first driving mechanism and the second driving mechanism are equal.
[0054] The working principle of this utility model is as follows:
[0055] The top surface of the board 2 is covered with film layer 1, and the bottom surface of the board 2 is attached with release paper 4, which pulls the board 2 to move. The film layer 1 and release paper 4 are respectively covered on the two surfaces of the board 2 in the thickness direction by hot pressing.
[0056] Different traction forces are applied to both sides of the thickness direction of the board 2, and the film layer 1 is cut between the two boards 2 arranged sequentially along the conveying direction. The traction force on the top surface of the board 2 is less than that on the bottom surface of the board 2. The traction force on the top surface of the board 2 comes from the first pressure roller 31, and the pressure on the bottom surface of the board 2 comes from the release paper 4, i.e., the second pressure roller 32.
[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A film lamination device for laminating a film layer with a substrate, characterized in that, Including rolling components; The rolling assembly includes a first pressure roller and a second pressure roller; A variable-pitch rolling gap is formed between the first pressure roller and the second pressure roller, and the rolling gap is used to allow the film layer to pass through the board; The diameters of the first pressure roller and the second pressure roller are not equal, so that the first pressure roller and the second pressure roller have a speed difference.
2. The film lamination equipment according to claim 1, characterized in that, The spacing of the rolling gap is -0.4~0.4mm.
3. The film lamination equipment according to claim 1, characterized in that, The diameter of the first pressure roller is smaller than the diameter of the second pressure roller.
4. The film lamination equipment according to claim 1, characterized in that, The first pressure roller and the second pressure roller are arranged sequentially in the vertical direction.
5. The film lamination equipment according to claim 1, characterized in that, Both the first pressure roller and the second pressure roller are rubber rollers.
6. The film lamination equipment according to claim 1, characterized in that, The film lamination equipment also includes a first conveying mechanism and a second conveying mechanism for conveying release paper; The first conveying mechanism, the rolling assembly, and the second conveying mechanism are arranged sequentially along the conveying direction.
7. The film lamination equipment according to claim 6, characterized in that, The conveying surface of the first conveying mechanism, the lower edge of the rolling gap, and the conveying surface of the second conveying mechanism are flush.
8. A film lamination device according to claim 6, characterized in that, The film lamination equipment also includes a feeding roller; The feeding roller is located on the side of the rolling assembly closer to the first conveying mechanism, and the plane on which the axis of the feeding roller is located is higher than the plane on which the top of the rolling assembly is located.
9. The film lamination equipment according to claim 1, characterized in that, The membrane lamination equipment also includes a heating component; The first pressure roller and the second pressure roller are electrically connected to the heating assembly, respectively.
10. A film lamination device according to claim 1, characterized in that, The membrane lamination equipment further includes a first drive mechanism and a second drive mechanism; The first driving mechanism is connected to the first pressure roller, and the second driving mechanism is connected to the second pressure roller. The first driving mechanism and the second driving mechanism rotate at the same speed.