A press calender for processing polyamide film
By combining a bidirectional electric slide rail and a ring-shaped temperature control component, the problems of adaptability and temperature and pressure control of existing pressing and flattening machines are solved, achieving high efficiency, uniformity and stability in film processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG DANQING PRINTING CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-16
AI Technical Summary
Existing pressing and flattening machines are difficult to adapt to film materials of different sizes, resulting in low clamping efficiency and easy edge warping. Furthermore, the lack of coordinated control of temperature and pressure leads to wrinkles or uneven thickness on the film surface.
The clamping frame is driven to slide in the opposite direction by a bidirectional electric slide rail. Combined with a flip-up and liftable clamping assembly and a ring-shaped temperature control component, it achieves adaptive adjustment of film size and independent temperature control of zones through magnetic modular assembly. Combined with a closed-loop feedback system of pressure detector and electric telescopic rod, it can adjust the pressing force and temperature field distribution in real time.
It achieves adaptive adjustment of film size and precise control of pressure and temperature, significantly improving the uniformity of film processing and the efficiency of equipment use, while reducing the risk of film breakage.
Smart Images

Figure CN224360680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of polyamide film processing, and in particular to a pressing and flattening machine for polyamide film processing. Background Technology
[0002] Polyamide film is made from nylon resin and can be produced by extrusion casting. During the production process of polyamide film, the film extruded from the extruder is prone to wrinkles and unevenness during cooling, traction and winding due to factors such as thermal expansion and contraction, uneven traction force and stress of the film itself. These unevenness problems will lead to uneven film thickness, affecting the optical properties, mechanical properties and subsequent processing and use of the film. Therefore, it is necessary to process it with a flattening machine.
[0003] Existing pressing and flattening machines mostly adopt a fixed clamping structure, which is difficult to adapt to film materials of different sizes, resulting in low clamping efficiency and easy edge warping. In addition, conventional equipment lacks a coordinated control mechanism for temperature and pressure, which can easily lead to local overheating or uneven pressure during hot pressing, causing wrinkles or uneven thickness on the film surface. Therefore, this application provides a pressing and flattening machine for polyamide film processing to meet the requirements. Utility Model Content
[0004] The purpose of this application is to provide a pressing and flattening machine for polyamide film processing, which solves the problems of low clamping efficiency and easy edge warping in the prior art, and achieves the purpose of improving overall efficiency and adaptability.
[0005] To achieve the above objectives, this application provides the following technical solution: a pressing and flattening machine for polyamide film processing, comprising a mounting frame, wherein a clamping frame is connected inside the mounting frame via an electric slide rail, two clamping frames slide in opposite directions inside the mounting frame, and a clamping assembly is provided inside the clamping frame, the two clamping assemblies clamping the same polyamide film, a connecting frame is fixedly connected to the top of the mounting frame, and a sliding member is slidably connected to the top of the connecting frame via a sliding guide groove, an electric push rod is fixedly connected to the top of the mounting frame, and the free end of the electric push rod is fixedly connected to the side wall of the sliding member, a mounting frame is connected to the bottom of the sliding member via an electric telescopic rod, and a pressing rod is connected inside the mounting frame via an mounting assembly, a plurality of temperature control components are provided around the pressing rod, and the temperature control components are fixed by a limiting assembly, and a pressure detector is fixedly connected to the bottom of the electric telescopic rod.
[0006] Preferably, the clamping assembly includes a clamping plate fixedly connected to the inside of the clamping frame, a drive motor fixedly connected to the side wall of the clamping frame, and a flipping plate fixedly sleeved at the output end of the drive motor. The drive motor drives the flipping plate to rotate, and the flipping plate is connected to a clamping member through an electric lifting rod. The polyamide film is clamped between the clamping plate and the clamping member.
[0007] Preferably, the bottom of the clamping plate is provided with a clamping groove, and multiple clamping protrusions are formed above the clamping member. The clamping groove and the clamping protrusions are adapted to each other, and a rubber pad is fixedly connected inside the clamping groove.
[0008] Preferably, the mounting assembly includes multiple support springs fixedly connected to one side of the mounting frame, the free ends of the multiple support springs being fixedly connected to the same buffer plate, and the pressing rod being inserted into both sides of the mounting frame and the buffer plate.
[0009] Preferably, both the mounting frame and the buffer plate are fixedly connected to internal threaded sleeves, and both sides of the pressing rod are fixedly connected to threaded components, which are threadedly connected to the inside of the internal threaded sleeves.
[0010] Preferably, the limiting component includes multiple snap-fit slots formed on the periphery of the pressing rod, and the temperature control component is inserted into the snap-fit slot in an arc-shaped structure. Two temperature control components form a ring structure, and magnetic suction plates are fixedly connected to the side walls of both temperature control components, with adjacent magnetic suction plates being compatible.
[0011] Preferably, the limiting groove is formed on the temperature control component, and a limiting plate is engaged inside the limiting groove. The pressing rod and the limiting plate are connected to the same engaging component.
[0012] In summary, the technical effects and advantages of this utility model are as follows:
[0013] 1. This utility model has a reasonable structure. The clamping frame is driven to slide in the opposite direction by a bidirectional electric slide rail. Combined with the flip-up and liftable clamping components, it achieves adaptive adjustment of the film size. The concave-convex interlocking structure of the clamping plate and the clamping components, combined with a rubber buffer layer, ensures clamping force while avoiding film indentation. It is particularly suitable for the stable clamping of ultra-thin polyamide films.
[0014] 2. In this invention, the annular temperature control component is assembled in a modular, magnetically attached manner, supporting independent temperature control in different zones. Combined with a closed-loop feedback system of a pressure detector and an electric telescopic rod, the pressing pressure and temperature field distribution can be adjusted in real time, keeping the temperature difference on the film surface within ±1.5℃ and the pressure fluctuation less than 5N, significantly improving the flatness and uniformity of hot pressing.
[0015] 3. In this utility model, the dual buffer design of the supporting spring and buffer plate in the mounting assembly effectively absorbs instantaneous impact loads. When the detected pressure exceeds the threshold, the electric push rod can automatically retract, forming a safe buffer zone, reducing the risk of film stretching deformation and lowering the processing breakage rate.
[0016] 4. In this utility model, the replacement time for the pressing rod and temperature control component is shortened to within 3 minutes through the threaded connection structure and snap-fit limiting component. The self-aligning design of the inner threaded sleeve and threaded component ensures that no precision calibration is required during disassembly and assembly, greatly improving the equipment's uptime. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a first-view three-dimensional structural diagram of a pressing and flattening machine for polyamide film processing;
[0019] Figure 2 This is a cross-sectional three-dimensional structural diagram of the mounting frame in a pressing and flattening machine for polyamide film processing;
[0020] Figure 3 This is a schematic diagram of the three-dimensional connection structure of an electric push rod in a pressing and flattening machine for polyamide film processing;
[0021] Figure 4 This is a schematic diagram of the three-dimensional connection structure of the pressing rod in a pressing and flattening machine used for polyamide film processing;
[0022] Figure 5 This is a schematic diagram of the three-dimensional connection structure of threaded parts in a press flattening machine used for polyamide film processing.
[0023] Figure label:
[0024] 1. Mounting frame; 2. Electric slide rail; 3. Clamping frame; 4. Polyamide film; 5. Connecting frame; 6. Electric push rod; 7. Sliding component; 8. Electric telescopic rod; 9. Mounting frame; 10. Pressing rod; 11. Temperature control component; 12. Clamping plate; 13. Drive motor; 14. Flipping plate; 15. Electric lifting rod; 16. Clamping component; 17. Rubber pad; 18. Support spring; 19. Buffer plate; 20. Inner threaded sleeve; 21. Threaded component; 22. Pressure detector; 23. Snap-fit groove; 24. Magnetic suction plate; 25. Limiting groove; 26. Limiting plate; 27. Snap-fit component. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0028] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0030] The following is combined with Figure 1-5 The embodiments shown illustrate the technical solution of this utility model:
[0031] The system includes a mounting frame 1, with a clamping frame 3 connected inside the mounting frame 1 via an electric slide rail 2. The two clamping frames 3 slide in opposite directions inside the mounting frame 1, and clamping components are provided inside the clamping frames 3. The two clamping components clamp the same polyamide film 4. A connecting frame 5 is fixedly connected to the top of the mounting frame 1, and a sliding member 7 is slidably connected to the top of the connecting frame 5 via a sliding guide groove. An electric push rod 6 is fixedly connected to the top of the mounting frame 1, and the free end of the electric push rod 6 is fixedly connected to the side wall of the sliding member 7. A mounting frame 9 is connected to the bottom of the sliding member 7 via an electric telescopic rod 8, and a pressing rod 10 is connected inside the mounting frame 9 via an mounting component. Multiple temperature control components 11 are provided around the pressing rod 10, and the temperature control components 11 are fixed by a limiting component. A pressure detector 22 is fixedly connected to the bottom of the electric telescopic rod 8.
[0032] During use, the mounting frame 1 can be placed directly on a flat surface, and the electric slide rail 2 can be controlled by an external controller. This allows the electric slide rail 2 to autonomously move the clamping frame 3, thereby adjusting the distance between the two clamping frames 3 to meet the different usage requirements of the polyamide film 4. The clamping assembly then quickly clamps and fixes the polyamide film 4. After the polyamide film 4 is clamped and fixed, the temperature control element 11 can be fixed to the pressing rod 10 by the limiting assembly. The installed pressing rod 10 is then connected to the mounting frame 9 through the mounting assembly, completing all the installation steps. The mounting frame 9 can then be controlled by an external controller via the electric telescopic rod 8, allowing the pressing rod 10 and the temperature control element 11 to directly contact the polyamide film 4 during use. At this time, multiple temperature control elements 11 can be controlled independently, thus accurately treating different areas and improving the overall flexibility and adaptability of its use.
[0033] The clamping assembly includes a clamping plate 12 fixedly connected inside the clamping frame 3. A drive motor 13 is fixedly connected to the side wall of the clamping frame 3, and a flipping plate 14 is fixedly sleeved at the output end of the drive motor 13. The drive motor 13 drives the flipping plate 14 to rotate, and the flipping plate 14 is connected to a clamping member 16 through an electric lifting rod 15. The polyamide film 4 is clamped between the clamping plate 12 and the clamping member 16.
[0034] During its use, the polyamide film 4 can be placed directly under the two clamping plates 12, so that the drive motor 13 can be directly controlled by external control, so that the drive motor 13 drives the flipping plate 14 to rotate. When the flipping plate 14 rotates to be parallel with the clamping plate 12, the flipping plate 14 can push the clamping member 16 to move. At this time, the clamping member 16 will quickly approach the clamping plate 12 from below, and then clamp the polyamide film 4, making the overall clamping operation more convenient.
[0035] The bottom of the clamping plate 12 is provided with a clamping groove, and multiple clamping protrusions are formed on the top of the clamping member 16. The clamping groove and the clamping protrusions are matched, and a rubber pad 17 is fixedly connected inside the clamping groove.
[0036] When the clamping member 16 moves upward under force, it can directly insert the clamping member 16 into the clamping groove at the bottom of the clamping plate 12 through the clamping protrusion, thereby causing the polyamide film 4 to bend inside the clamping assembly, thus improving the overall stability of its use. At the same time, the setting of the rubber pad 17 also increases the contact friction between the clamping assembly and the polyamide film 4 to a certain extent, making it more stable during clamping.
[0037] The mounting assembly includes multiple support springs 18 fixedly connected to one side of the mounting frame 9, with the free ends of the multiple support springs 18 fixedly connected to the same buffer plate 19, and a pressing rod 10 inserted into both sides of the mounting frame 9 and the buffer plate 19.
[0038] When disassembling after use, the buffer plate 19 can be pushed directly, so that the buffer plate 19 is subjected to force and the supporting spring 18 is squeezed under the action of the force, causing the supporting spring 18 to deform and shorten, thereby changing the dimensional distance between the two buffer plates 19, allowing the pressing rod 10 to have more space to be disassembled and removed, thereby improving its overall stability during use.
[0039] Both the mounting frame 9 and the buffer plate 19 are fixedly connected to the internal threaded sleeves 20, and both sides of the pressing rod 10 are fixedly connected to threaded parts 21, which are threadedly connected to the inside of the internal threaded sleeves 20.
[0040] During its use, the inner threaded sleeve 20 can be rotated directly, so that the inner threaded sleeve 20 is subjected to force and the force is transmitted to the threaded part 21, so that the threaded part 21 can slide and disassemble along the inner threaded sleeve 20 under the action of the force, thereby simplifying the overall disassembly and installation steps and making its overall use more stable.
[0041] The limiting component includes multiple snap-fit slots 23 opened on the periphery of the pressing rod 10, and the temperature control element 11 is inserted into the snap-fit slot 23 in an arc-shaped structure. The two temperature control elements 11 form a ring structure, and the side walls of the two temperature control elements 11 are fixedly connected with magnetic suction plates 24, and the two adjacent magnetic suction plates 24 are compatible.
[0042] Before use, the temperature control component 11 can be pushed directly so that it is inserted into the slot 23. At this time, the two temperature control components 11 will approach each other and can be quickly fixed by magnetic attraction under the action of the flip plate 14, so that it remains stable during use.
[0043] A limiting groove 25 is formed on the temperature control component 11, and a limiting plate 26 is snapped into the inside of the limiting groove 25. The same snap-fit component 27 is inserted into the pressing rod 10 and the limiting plate 26.
[0044] After the temperature control component 11 is installed, the limiting plate 26 can be directly aligned with the limiting groove 25, thereby pushing the limiting plate 26 so that the limiting plate 26 is forcefully engaged inside the limiting groove 25, thus combining multiple temperature control components 11 into an integrated structure, limiting the position of multiple temperature control components 11. Then, the snap-fit component 27 is pushed so that the snap-fit component 27 is forcefully inserted into the inside of the temperature control component 11 and the pressing rod 10, thereby limiting the position between the temperature control component 11 and the pressing rod 10, ensuring its stability during use.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A pressing and flattening machine for polyamide film processing, comprising a mounting frame (1), characterized in that: The mounting frame (1) is connected to a clamping frame (3) via an electric slide rail (2). The two clamping frames (3) slide in opposite directions inside the mounting frame (1), and clamping components are provided inside the clamping frames (3). The two clamping components clamp the same polyamide film (4). A connecting frame (5) is fixedly connected to the top of the mounting frame (1), and a sliding member (7) is slidably connected to the top of the connecting frame (5) via a sliding guide groove. An electric push rod (6) is fixedly connected to the sliding member (7), and the free end of the electric push rod (6) is fixedly connected to the side wall of the sliding member (7). The bottom of the sliding member (7) is connected to a mounting frame (9) via an electric telescopic rod (8), and a pressing rod (10) is connected to the inside of the mounting frame (9) via a mounting assembly. Multiple temperature control components (11) are provided around the pressing rod (10), and the temperature control components (11) are fixed by a limiting assembly. A pressure detector (22) is fixedly connected to the bottom of the electric telescopic rod (8).
2. The pressing and flattening machine for polyamide film processing according to claim 1, characterized in that: The clamping assembly includes a clamping plate (12) fixedly connected inside the clamping frame (3). A drive motor (13) is fixedly connected to the side wall of the clamping frame (3), and a flipping plate (14) is fixedly sleeved at the output end of the drive motor (13). The drive motor (13) drives the flipping plate (14) to rotate, and the flipping plate (14) is connected to a clamping member (16) through an electric lifting rod (15). The polyamide film (4) is clamped between the clamping plate (12) and the clamping member (16).
3. A pressing and flattening machine for polyamide film processing according to claim 2, characterized in that: The bottom of the clamping plate (12) is provided with a clamping groove, and multiple clamping protrusions are formed above the clamping member (16). The clamping groove and the clamping protrusions are adapted to each other, and a rubber pad (17) is fixedly connected inside the clamping groove.
4. A pressing and flattening machine for polyamide film processing according to claim 3, characterized in that: The mounting assembly includes multiple support springs (18) fixedly connected to one side of the mounting frame (9), with the free ends of the multiple support springs (18) fixedly connected to the same buffer plate (19), and a pressing rod (10) inserted into both sides of the mounting frame (9) and the buffer plate (19).
5. A pressing and flattening machine for polyamide film processing according to claim 4, characterized in that: The mounting frame (9) and the buffer plate (19) are both fixedly connected with internal threaded sleeves (20), and both sides of the pressing rod (10) are fixedly connected with threaded parts (21), which are threadedly connected to the inside of the internal threaded sleeves (20).
6. A pressing and flattening machine for polyamide film processing according to claim 5, characterized in that: The limiting component includes multiple snap-fit slots (23) formed on the periphery of the pressing rod (10), and the temperature control component (11) is inserted into the snap-fit slot (23) in an arc shape. The two temperature control components (11) form a ring structure, and the side walls of the two temperature control components (11) are fixedly connected with magnetic plates (24), and the two adjacent magnetic plates (24) are compatible.
7. A pressing and flattening machine for polyamide film processing according to claim 6, characterized in that: The limiting groove (25) is opened on the temperature control component (11), and the limiting plate (26) is snapped into the inside of the limiting groove (25). The same snap-fit component (27) is inserted into the pressing rod (10) and the limiting plate (26).