A welding piece joint protection film pressing machine
By designing a protective film pressing machine for welded joints, and utilizing the coordinated action of an integrated bracket and a cylinder-driven pressure rod, combined with the buffering force of a spring, the problem of irregular film deformation was solved, achieving welded joint connections with high sealing performance and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENJIANG WEISHENG TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-03
AI Technical Summary
In existing technologies, when welded joints are connected to plastic joints, the plastic film is prone to irregular deformation, resulting in poor sealing and easy entry of particulate matter, which can contaminate the inside of the pipe.
Design a protective film pressing machine for welded joints, including an integrated bracket, cylinder, pressure rod, pressure block and spring, etc. Through precise mechanical structure and elastic deformation, ensure uniform film pressing, avoid local damage and improve sealing fit.
It achieves uniform pressing of the membrane, reduces the generation of defective products, improves sealing performance and internal cleanliness of the pipeline, and significantly enhances the aesthetics of the connection between the membrane and the joint.
Smart Images

Figure CN224446944U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film pressing machine technology, and mainly to a film pressing machine for protective film on welded joints. Background Technology
[0002] Welded components are commonly used in semiconductor manufacturing, and these components require high levels of cleanliness within the piping. When welded component joints are not yet connected to other valves or other welded components, they are first connected using a plastic threaded connector to ensure the cleanliness of the piping. Typically, a plastic film is placed between the welded component joint and the plastic connector to increase sealing and reduce the amount of particulate matter entering the pipe. Currently, the welded component joint is directly tightened with the plastic film in between. However, due to the plastic film's plastic deformation, irregular deformation occurs, resulting in a poor seal between the welded component joint and the plastic connector. This allows particulate matter to easily get in, and over time, this irregular deformation can lead to particulate matter buildup on the film, contaminating the inside of the pipe. Utility Model Content
[0003] To address the aforementioned problems, this utility model proposes a protective film pressing machine for welded joints.
[0004] The specific technical solution is as follows:
[0005] A protective film pressing machine for welded joints includes an integrated support frame and a pressing device. The integrated support frame has a mounting base on top and a worktable below. A pressing block guide plate is located directly above the worktable. The pressing device includes a cylinder, a pressing rod, and a pressing block. The pressing rod is equipped with a nut and a washer, and a spring is provided between the washer and the pressing block.
[0006] The pressure block has an installation groove, the pressure block guide plate has a through hole, and the worktable has a lower pressure groove.
[0007] The cylinder is mounted on the mounting base. One end of the pressure rod passes through the mounting base and is connected to the cylinder, while the other end is located in the mounting groove of the pressure block and is used in conjunction with the pressure block through the protrusion on the pressure rod.
[0008] The height of the pressure block is greater than the distance between the worktable and the pressure block guide plate.
[0009] The nut and washer are fixed to the pressure rod by threads.
[0010] The lower end of the pressure rod is used in conjunction with the lower pressure groove on the worktable.
[0011] The beneficial effects of this utility model are as follows:
[0012] This utility model application discloses a protective film pressing machine for welded joints. It utilizes an upper mounting base to fix a cylinder, a lower worktable to provide an operating plane, and a guide plate for the pressing block to position the machine, forming a compact and stable mechanical structure. This ensures precise movement of each component during pressing, avoiding film pressing deviations caused by a loose structure. The cylinder drives the pressure rod to move up and down, and the cooperation between the pressure rod protrusion and the pressing block mounting groove enables coordinated action between the pressure rod and the pressing block. A spring, positioned between the gasket and the pressing block, provides cushioning force during pressing and ensures uniform contact between the pressing block and the film through elastic deformation, preventing excessive local pressure that could damage the film. During installation, the film can be directly fitted onto the joint, significantly improving the sealing fit, reducing the irregular deformation problems of traditional manual film pressing, ensuring consistent film forming, reducing defective products, and improving the aesthetics of the film-joint connection and the cleanliness of the pipeline interior. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the present invention in use.
[0014] Figure 2 This is a structural diagram of the initial state of this utility model.
[0015] Figure 3 This is a cross-sectional view of the present invention.
[0016] In the diagram: 1. Integrated bracket; 2. Pressing equipment; 3. Mounting base; 4. Workbench; 5. Pressing block guide plate; 6. Cylinder; 7. Pressing rod; 8. Pressing block; 9. Nut; 10. Washer; 11. Spring; 12. Mounting groove; 13. Lower pressing groove; 14. Protrusion. Detailed Implementation
[0017] To make the technical solution of this utility model clearer and more explicit, the utility model will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this utility model shall fall within the protection scope of this utility model.
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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.
[0020] A protective film pressing machine for welded joints includes an integrated support 1 and a pressing device 2. The integrated support 1 has a mounting base 3 on top and a worktable 4 below. A pressing block guide plate 5 is located directly above the worktable 4. The pressing device 2 includes a cylinder 6, a pressing rod 7 and a pressing block 8. The pressing rod 7 is provided with a nut 9 and a washer 10. A spring 11 is provided between the washer 10 and the pressing block 8.
[0021] The pressure block 8 has an installation groove 12, the pressure block guide plate 5 has a through hole, and the worktable 4 has a lower pressure groove 13.
[0022] The cylinder 6 is mounted on the mounting base 3. One end of the pressure rod 7 passes through the mounting base 3 and is connected to the cylinder 6. The other end is located in the mounting groove 12 of the pressure block 8 and is used in conjunction with the pressure block 8 through the protrusion 14 on the pressure rod 7.
[0023] The height of the pressure block 8 is greater than the distance between the workbench 4 and the pressure block guide plate 5.
[0024] The nut 9 and the washer 10 are fixed to the pressure rod 7 by threads.
[0025] The lower end of the pressure rod 7 is used in conjunction with the lower pressure groove 13 on the worktable 4.
[0026] The dimensions of the pressure bar are consistent with the dimensions of the welded joint.
[0027] The dimensions of the pressure bar are consistent with the dimensions of the welded joint, which facilitates a high degree of fit after pressing and connection with the plastic joint. The upper part of the pressure bar is threaded, and the nut and washer are fixed to the pressure bar with screws. The preload of the spring can be adjusted by adjusting the position of the nut to prevent the film from moving during pressing.
[0028] This utility model application discloses a protective film pressing machine for welded joints. It utilizes an upper mounting base to fix a cylinder, a lower worktable to provide an operating plane, and a guide plate for the pressing block to position the film, forming a compact and stable mechanical structure. This ensures precise movement of each component during pressing, avoiding film pressing deviations caused by a loose structure. The cylinder drives the pressing rod to move up and down. The cooperation between the pressing rod protrusion and the pressing block mounting groove enables coordinated action between the pressing rod and the pressing block. A spring, positioned between the gasket and the pressing block, provides cushioning force during pressing and ensures uniform contact between the pressing block and the film through elastic deformation, preventing excessive local pressure that could damage the film. The pressing rod's dimensions are consistent with the welded joint, and its lower end mates with the pressing groove on the worktable, ensuring the pressed film forms a shape (e.g., depth, contour) that perfectly matches the joint. During installation, it can be directly fitted onto the joint, significantly improving sealing and reducing the irregular deformation problems associated with traditional manual film pressing.
[0029] Working principle: The tooling first presses and deforms the film to the desired depth and dimensions for the welded joint. During installation, it can be directly fitted onto the welded joint and then tightened onto the plastic connector. This reduces irregular deformation of the plastic film and increases its sealing and cleanliness. In use, the cylinder pushes the pressure rod downwards, and its spring presses the pressure block downwards as well. The film is placed on the worktable below the integrated support, supported by the pressure block. The pressure rod continues to move downwards, pressing the film into shape. Then, the direction of the cylinder movement is controlled by a solenoid valve, pulling the pressure rod back to its original position. The pressed film can then be removed, and the above operation can be repeated.
[0030] The above description is merely a preferred 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 scope of the claims.
Claims
1. A welding joint protection film presser, comprising an integrated support (1) and a film presser device (2), characterized in that, The integrated bracket (1) has an mounting base (3) on top and a workbench (4) below. A pressure block guide plate (5) is located directly above the workbench (4). The pressing device (2) includes a cylinder (6), a pressure rod (7) and a pressure block (8). The pressure rod (7) is equipped with a nut (9) and a washer (10). A spring (11) is provided between the washer (10) and the pressure block (8).
2. A welding joint protector film press according to claim 1, wherein The pressure block (8) is provided with an installation groove (12), the pressure block guide plate (5) is provided with a through hole, and the worktable (4) is provided with a lower pressure groove (13).
3. A welding joint protector film press according to claim 1, wherein The cylinder (6) is installed above the mounting base (3). One end of the pressure rod (7) passes through the mounting base (3) and is connected to the cylinder (6). The other end is located in the mounting groove (12) of the pressure block (8) and is used in conjunction with the pressure block (8) through the protrusion (14) on the pressure rod (7).
4. A welding joint protector film press according to claim 1, wherein The height of the pressure block (8) is greater than the distance between the worktable (4) and the pressure block guide plate (5).
5. A welding joint protector film press according to claim 1, wherein The nut (9) and washer (10) are fixed to the pressure rod (7) by threads.
6. A welding joint protector film press according to claim 1, wherein The lower end of the pressure rod (7) is used in conjunction with the pressure groove (13) on the worktable (4).