Exhaust device for release film bubbles
By using the pressing of the first and second pressing rollers and an automatic feeding system, the problem of air bubbles during the pressing of the release film was solved, automated production was achieved, and production efficiency and product quality were improved.
Patent Information
- Application Number
- CN202423277771.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing technologies, gas is not easily expelled completely during the pressing of release films, which easily generates bubbles and requires manual feeding, resulting in extended production cycles and reduced output.
The release film is pressed together by a first and a second pressing roller. Automatic feeding is achieved by combining a drive motor, a lead screw, and a clamping plate. A secondary pressing is performed by an auxiliary roller and a return spring to eliminate air bubbles.
Automated release film feeding is achieved, avoiding air bubbles, ensuring tight adhesion and a smooth surface, and improving production efficiency and output.
Smart Images

Figure CN223835200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of release film technology, and in particular to a device for venting bubbles in release films. Background Technology
[0002] Release film, also known as peel film, anti-stick film or release film, is a thin film material with a special coating on one or two of its surfaces. Release film is composed of multiple layers of materials.
[0003] Patent CN219007078U discloses a pressing mechanism for processing PET release film. It includes a worktable, a pressing chamber fixed to the upper surface of the worktable, four support legs fixed to the lower surface of the worktable, a pressing assembly on the upper surface of the pressing chamber, a pressing seat fixed to the upper surface of the worktable, a cleaning assembly on the right side of the pressing chamber, and a dust removal assembly on the upper surface of the pressing chamber. When using this patent for release film pressing, the release film is placed on the pressing seat. After the release film is positioned, the cylinder in the pressing assembly is activated to press the release film. However, the pressure plate in the aforementioned prior art applies pressure only once, making it difficult to completely expel air from the release film, easily generating air bubbles, and requiring manual feeding, leading to a longer production cycle and reduced output.
[0004] Therefore, there is a need to provide a device for venting air bubbles in release film, which uses a first and a second pressing roller to press the release film together, venting the gas between the materials to avoid the formation of air bubbles, and can automatically feed the material through components such as a drive motor, lead screw, and clamping plate. Utility Model Content
[0005] To overcome the shortcomings of existing patents where the pressure plate applies pressure only once, making it difficult to completely expel air from the release film and easily generating bubbles, and requiring manual feeding which leads to extended production cycles and reduced output, this utility model provides a release device for releasing bubbles in the release film. The release film is pressed together by a first and a second pressing roller to expel gas between the materials, preventing bubbles from forming. Furthermore, it can be automatically fed through components such as a drive motor, lead screw, and clamping plate.
[0006] To address the aforementioned problems, this utility model adopts the following technical solution: a degassing device for release film bubbles, comprising a rolling table, a placement frame, a storage frame, a switch door, a limiting plate, a baffle, a handle, a base plate, and return springs. The placement frame and the storage frame are fixedly connected to the rolling table. A switch door is hinged to the storage frame. Limit plates are fixed to both the placement frame and the storage frame. A baffle is slidably installed within the limiting plate, and a handle is fixedly installed on the baffle. Base plates are slidably installed within both the placement frame and the storage frame. Two return springs connect one base plate to an adjacent placement frame, and two identical return springs connect the other base plate to an adjacent storage frame. The device also includes a support frame, a drive motor, a lead screw, a sliding plate, an electric push rod, an electric slide rail, an electric slider, and a clamping block. The system includes a limiting frame, a sliding frame, a first pressing roller, and a second pressing roller. Two support frames are fixedly connected between the placement frame and the storage frame. Each support frame is equipped with a drive motor. The output shaft of the drive motor is connected to a lead screw via a coupling. The lead screw rotates on adjacent support frames. A sliding plate is threaded onto the lead screw. An electric push rod is mounted on the sliding plate. An electric slide rail is mounted on the telescopic rod of the electric push rod. An electric slider is mounted on the electric slide rail and slides on it. Two clamping blocks are mounted on the electric slider and are located below adjacent baffles. A limiting frame is fixedly connected to the pressing platform. A sliding frame is slidably mounted on the limiting frame. A first pressing roller is rotatably mounted on the sliding frame. Multiple second pressing rollers are evenly spaced and rotatably mounted on the pressing platform. The first pressing roller is located above the second pressing rollers.
[0007] To further explain, it also includes an auxiliary roller, a connecting frame, a pressure plate, and a return spring. An auxiliary roller is fixedly connected to the second rolling roller. Two connecting frames are fixedly connected to the sliding frame. Two pressure plates are slidably arranged on the connecting frame. Two return springs are sleeved on the pressure plates. The two ends of the return springs are connected to the pressure plates and the connecting frames, respectively. The pressure plates are located above the adjacent auxiliary rollers.
[0008] To further explain, it also includes an adjusting rod, pointers, and scale plates. The adjusting rod is threaded onto the limiting frame and is fixedly connected to the sliding frame. Multiple scale plates are fixedly connected to the limiting frame, and multiple pointers are fixedly connected to the sliding frame. The pointers slide within adjacent scale plates.
[0009] To further explain, it also includes corrugated sleeves; two corrugated sleeves are fitted on the pressure plate, and the return spring is located inside the adjacent corrugated sleeves.
[0010] To further explain, it also includes transparent panels, with multiple transparent panels embedded in the placement and storage frames.
[0011] To further explain, it also includes an anti-slip sleeve; the handle is covered with an anti-slip sleeve.
[0012] Compared with the prior art, the present invention has the following technical effects: 1. The output shaft of the drive motor drives the lead screw to rotate, which causes the lead screw to move the sliding plate and the components above it to the right. At the same time as the sliding plate moves to the right, the telescopic rod of the electric push rod extends, which causes the telescopic rod to move the electric slide rail, the electric slider and the clamping block inward, so that the two clamping plates fix the plate-shaped release film. This can drive the plate-shaped release film to move, achieving the purpose of automatic feeding. Then, the electric slide rail is started, and the electric slide rail drives the electric slider on itself to move, which can move the plate-shaped release film to the gap between the first and second rolling rollers, so that the two rolling rollers press the plate-shaped release film together, pressing the multiple layers of materials in the release film together, avoiding the formation of air bubbles that would cause the plate-shaped release film to be scrapped.
[0013] 2. The auxiliary roller assists the plate-shaped release film to move to the right, and the pressure plate performs a secondary pressing on the plate-shaped release film. The return spring deforms accordingly, further eliminating any possible air bubbles and ensuring a tighter bond. It can also improve the surface smoothness.
[0014] 3. By rotating the adjusting rod, the sliding frame is moved downward to a suitable position, which can then press and defoam plate-shaped release films of different thicknesses. The position of the pointer on the scale plate can obtain the movement path data, thereby allowing the appropriate height to be adjusted according to the width of the plate-shaped release film. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the placement frame, storage frame, and opening / closing door of this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the electric push rod, electric slide rail, and electric slider of this utility model.
[0018] Figure 4 This is a three-dimensional sectional view of the base plate, return spring, and sliding plate of this utility model.
[0019] Figure 5 This is a three-dimensional structural diagram of the limiting frame, the first rolling roller, and the second rolling roller of this utility model.
[0020] Figure 6 This is a three-dimensional sectional view of the auxiliary roller, connecting frame, and pressure plate of this utility model.
[0021] Figure 7 This is a three-dimensional structural diagram of the reset spring, adjusting rod, and pointer of this utility model.
[0022] The markings in the attached diagram are as follows: 1: Rolling table, 2: Placement frame, 3: Storage frame, 301: Opening / closing door, 4: Limiting plate, 5: Baffle, 6: Pull handle, 7: Base plate, 8: Return spring, 9: Support frame, 10: Drive motor, 11: Lead screw, 12: Sliding plate, 13: Electric push rod, 14: Electric slide rail, 15: Electric slider, 16: Clamping block, 17: Limiting frame, 18: Sliding frame, 19: First rolling roller, 20: Second rolling roller, 21: Auxiliary roller, 22: Connecting frame, 23: Pressure plate, 24: Return spring, 25: Adjusting rod, 26: Pointer, 27: Scale plate, 28: Corrugated sleeve, 29: Transparent plate, 30: Anti-slip sleeve. Detailed Implementation
[0023] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.
[0024] Example 1: A device for venting bubbles in release film, see [reference] Figures 1-7As shown, the device includes a rolling mill 1, a placement frame 2, a storage frame 3, a switch door 301, a limiting plate 4, a baffle 5, a handle 6, a base plate 7, and a return spring 8. The placement frame 2 is welded to the right side of the rolling mill 1, and the storage frame 3 is welded to the left side of the rolling mill 1. The switch door 301 is hinged to the left side of the storage frame 3. Limiting plates 4 are welded to the top of both the placement frame 2 and the storage frame 3. The two limiting plates 4 are mirror images of each other. A baffle 5 is slidably installed inside the limiting plate 4, and a [missing information - likely a design element] is welded onto the baffle 5. The pull handle 6, the placement frame 2 and the storage frame 3 are equipped with sliding base plates 7. The base plate 7 on the left is connected to the adjacent placement frame 2 by two return springs 8, and the base plate 7 on the right is also connected to the adjacent storage frame 3 by two similar return springs 8. It also includes a support frame 9, a drive motor 10, a lead screw 11, a sliding plate 12, an electric push rod 13, an electric slide rail 14, an electric slider 15, a clamping block 16, a limiting frame 17, a sliding frame 18, a first pressing roller 19 and a second pressing roller 20. The front sides of the placement frame 2 and the front sides of the storage frame 3 are connected. A support frame 9 is welded between the two sides of the storage frame 2 and the storage frame 3. A similar support frame 9 is also welded between the rear sides of the storage frame 3 and the storage frame 2. A drive motor 10 is bolted to the right side of both support frames 9. A lead screw 11 is mounted on the output shaft of the drive motor 10 via a coupling. The lead screw 11 rotates on the adjacent support frame 9. A sliding plate 12 is threaded onto the lead screw 11. An electric push rod 13 is bolted to the upper part of the sliding plate 12. An electric slide rail 14 is mounted on the telescopic rod of the electric push rod 13. An electric slider 15 is installed on the electric slide rail 14. The electric slider 15 slides on the electric slide rail 14. A clamping block 16 is installed inside the electric slider 15. The two clamping blocks 16 are located below the baffle 5 near the placement frame 2. A limit frame 17 is set in the middle of the rolling table 1 by welding. A sliding frame 18 is slidably set in the middle of the limit frame 17. A first rolling roller 19 is rotatably set at the lower part of the sliding frame 18. Five second rolling rollers 20 are rotatably set at even intervals on the upper part of the rolling table 1. The first rolling roller 19 is located above the second rolling rollers 20.
[0025] See Figure 3 As shown, it also includes a transparent plate 29, and the transparent plate 29 is symmetrically embedded on both the front and back sides of the placement frame 2 and the storage frame 3.
[0026] See Figure 1 and Figure 3 As shown, it also includes an anti-slip sleeve 30, which is fitted onto the handle 6.
[0027] When the release film needs to be processed, pressed, and de-bubbled, the sheet-shaped release films are placed in batches on the base plate 7 within the placement frame 2. The weight of the sheet-shaped release films compresses the base plate 7, causing it to move downwards. The return spring 8 is compressed accordingly, and the baffle 5 limits the sheet-shaped release films. Then, by starting the drive motor 10, the output shaft of the drive motor 10 drives the lead screw 11 to rotate, causing the lead screw 11 to move the sliding plate 12, electric push rod 13, and electric slide rail 14 above it to the right. As the sliding plate 12 moves to the right, the telescopic rod of the electric push rod 13 extends, causing the telescopic rod to drive the electric slide rail 14, electric slider 15, and clamping block 16 to move inwards. This causes the two clamping plates to fix the sheet-shaped release film, thus enabling the sliding block to move the sheet-shaped release film, achieving the purpose of automatic feeding and increasing work efficiency. When the sheet-shaped release film disengages from the baffle 5, the return spring 8 will drive the base plate 7... The remaining sheet-like release film moves upward, and the electric slide rail 14 is activated, causing the electric slider 15 on the electric slide rail 14 to move. This moves the sheet-like release film to the gap between the first pressing roller 19 and the second pressing roller 20, so that the first pressing roller 19 and the second pressing roller 20 press the sheet-like release film together, pressing the multiple layers of material inside the release film together, avoiding air bubbles that would cause the sheet-like release film to be scrapped. After removing the air bubbles, the sheet-like release film finally moves to the bottom plate 7 of the storage frame 3. Then, the telescopic rod of the electric push rod 13 is controlled to retract, so that the clamping plate is separated from the sheet-like release film. When it is necessary to remove the pressed sheet-like release film, the switch door 301 can be opened. The transparent plate 29 makes it easy to observe the number of sheet-like release films in the placement frame 2 and the storage frame 3. The anti-slip sleeve 30 increases the friction between the worker's hand and the handle 6, making it easier for the worker to pull the handle 6.
[0028] Example 2: Based on Example 1, see [link to example]. Figure 5 , Figure 6 and Figure 7 As shown, it also includes an auxiliary roller 21, a connecting frame 22, a pressure plate 23, and a return spring 24. The auxiliary roller 21 is fixedly connected to the second rolling roller 20. The connecting frame 22 is welded to both sides of the sliding frame 18. The pressure plate 23 is slidably installed on both sides of the connecting frame 22. Two return springs 24 are sleeved on the pressure plate 23. The two ends of the return spring 24 are connected to the pressure plate 23 and the connecting frame 22 respectively. The pressure plate 23 is located above the adjacent auxiliary roller 21.
[0029] See Figure 7 As shown, it also includes a corrugated sleeve 28. Both the front and rear parts of the pressure plate 23 are fitted with corrugated sleeves 28, and the return spring 8 is located inside the adjacent corrugated sleeves 28.
[0030] When the plate-shaped release film moves to the gap between the first rolling roller 19 and the second rolling roller 20, the plate-shaped release film is assisted to move to the right by the auxiliary roller 21. The pressure plate 23 performs secondary pressing on the plate-shaped release film, and the return spring 24 deforms accordingly, further eliminating any possible air bubbles and ensuring a tighter bond. At the same time, it can also improve the surface flatness. The corrugated sleeve 28 can protect the return spring 8.
[0031] See Figures 5-7 As shown, it also includes an adjusting rod 25, a pointer 26, and a scale plate 27. The adjusting rod 25 is threaded in the middle of the limiting frame 17. The end of the adjusting rod 25 is fixedly connected to the sliding frame 18. The scale plate 27 is fixedly connected to both the front and rear parts of the limiting frame 17 symmetrically. The pointer 26 is fixedly connected to both the front and rear parts of the sliding frame 18 symmetrically. The pointer 26 slides within the adjacent scale plate 27.
[0032] Before pressing the plate-shaped release film, the adjusting rod 25 is rotated to move the sliding frame 18 downward to a suitable position, thereby enabling the pressing and defoaming of plate-shaped release films of different thicknesses. The position of the pointer 26 on the scale plate 27 can obtain the movement path data, so that the appropriate height can be adjusted according to the width of the plate-shaped release film.
[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A device for venting release film bubbles, comprising a rolling table (1), a placement frame (2), a storage frame (3), a switch door (301), a limiting plate (4), a baffle (5), a handle (6), a base plate (7), and a return spring (8), wherein the placement frame (2) is fixedly connected to the rolling table (1), the storage frame (3) is fixedly connected to the rolling table (1), and the switch door (301) is hingedly provided on the storage frame (3), the placement frame (2) and the storage frame (301) are connected to each other. 3) A limiting plate (4) is fixedly connected to both the upper and lower parts. A baffle (5) is slidably installed inside the limiting plate (4). A pull handle (6) is fixedly connected to the baffle (5). A base plate (7) is slidably installed inside the placement frame (2) and the storage frame (3). Two return springs (8) are connected between one of the base plates (7) and the adjacent placement frame (2). The other base plate (7) is also connected to the adjacent storage frame (3) with the same two return springs (8). Its characteristic is: It also includes a support frame (9), a drive motor (10), a lead screw (11), a sliding plate (12), an electric push rod (13), an electric slide rail (14), an electric slider (15), a clamping block (16), a limit frame (17), a sliding frame (18), a first rolling roller (19), and a second rolling roller (20). Two support frames (9) are fixed between the placement frame (2) and the storage frame (3). A drive motor (10) is installed on each of the two support frames (9). The output shaft of the drive motor (10) is connected to a lead screw (11) via a coupling. The lead screw (11) rotates on the adjacent support frame (9). A sliding plate (12) is threaded onto the lead screw (11). A sliding plate (12) is installed on the sliding plate (12). There is an electric push rod (13), an electric slide rail (14) is installed on the telescopic rod of the electric push rod (13), an electric slider (15) is installed on the electric slide rail (14), the electric slider (15) slides on the electric slide rail (14), a clamp (16) is installed on the electric slider (15), two clamps (16) are located below the adjacent baffles (5), a limit frame (17) is fixed on the rolling table (1), a sliding frame (18) is slidably installed on the limit frame (17), a first rolling roller (19) is rotatably installed on the sliding frame (18), and multiple second rolling rollers (20) are rotatably installed at even intervals on the rolling table (1), the first rolling roller (19) is located above the second rolling rollers (20).
2. The degassing device for release film bubbles according to claim 1, characterized in that: It also includes an auxiliary roller (21), a connecting frame (22), a pressure plate (23) and a return spring (24). The auxiliary roller (21) is fixedly connected to the second rolling roller (20). Two connecting frames (22) are fixedly connected to the sliding frame (18). Two pressure plates (23) are slidably arranged on the connecting frame (22). Two return springs (24) are sleeved on the pressure plate (23). The two ends of the return springs (24) are connected to the pressure plate (23) and the connecting frame (22) respectively. The pressure plate (23) is located above the adjacent auxiliary roller (21).
3. The degassing device for release film bubbles according to claim 2, characterized in that: It also includes an adjusting rod (25), a pointer (26) and a scale plate (27). The adjusting rod (25) is threaded on the limiting frame (17). The adjusting rod (25) is fixedly connected to the sliding frame (18). Multiple scale plates (27) are fixedly connected to the limiting frame (17). Multiple pointers (26) are fixedly connected to the sliding frame (18). The pointers (26) slide within the scale plates (27) that are close to each other.
4. The degassing device for release film bubbles according to claim 3, characterized in that: It also includes a corrugated sleeve (28), with two corrugated sleeves (28) fitted on the pressure plate (23), and a return spring (8) located inside the adjacent corrugated sleeves (28).
5. The degassing device for release film bubbles according to claim 4, characterized in that: It also includes transparent panels (29), and multiple transparent panels (29) are embedded in the placement frame (2) and storage frame (3).
6. The degassing device for release film bubbles according to claim 5, characterized in that: It also includes a non-slip sleeve (30), and the handle (6) is covered with a non-slip sleeve (30).
Citation Information
Patent Citations
Pressing mechanism for PET release film processing
CN219007078U