Film stretching machine for film production

Abstract

The utility model relates to mechanical design manufacturing technical field discloses a kind of film stretching machine for film production, including operation platform, the inside fixed connection of operation platform has electric push rod one, the drive end fixed connection of electric push rod one has connecting block, the right side fixed connection of connecting block has one rack, the inside wall sliding connection of operation platform has another rack, the inside rotation connection of operation platform has gear, the rack is meshed connection with the gear, the far side of two rack is fixedly connected with connecting plate, and the inside installation of two stretching rollers has outer support component. In the utility model, the key parameter of real-time adjustment stretching ratio, tension distribution is completed, and the production demand of different material and thickness specification film is adapted, and avoid the problem of insufficient stretching or overstretching due to fixed parameter.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, and in particular to a film stretching machine for film production. Background Technology

[0002] In modern industrial production, polymer films are widely used in packaging, electronics, and new energy fields due to their lightweight, flexibility, and high processability. Film stretching machines, as key equipment in film production, directionally stretch films, causing the molecular chains of polymer materials to rearrange and orient, thereby significantly improving the mechanical, optical, and barrier properties of the film. This transforms ordinary films into functional films with high strength, high transparency, and good barrier properties.

[0003] Film stretching machines can produce food packaging films and pharmaceutical packaging films, ensuring the safety and freshness of products during storage and transportation. In the electronics industry, they can manufacture optical display films and lithium battery separators, meeting the stringent requirements of precision electronic devices for material performance. In the new energy field, they can also be used to produce photovoltaic cell encapsulation films, contributing to the efficient conversion and utilization of clean energy.

[0004] In existing technologies, it is difficult to flexibly adjust stretching parameters during film stretching, making it difficult to meet the production needs of films with different materials and thicknesses. This results in poor equipment versatility, significant production limitations when faced with diverse orders, uneven film stress distribution, and defects such as wrinkles, cracks, and thickness deviations, which directly affect the stability of product quality. Therefore, a film stretching machine for film production is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a film stretching machine for film production, which aims to improve the problems of insufficient or excessive stretching caused by fixed parameters in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A film stretching machine for film production includes an operating table. An electric push rod is fixedly connected inside the operating table. A connecting block is fixedly connected to the drive end of the electric push rod. One rack is fixedly connected to the right side of the connecting block. Another rack is slidably connected to the inner wall of the operating table. A gear is rotatably connected inside the operating table. The rack and the gear are meshed. A connecting plate is fixedly connected to the opposite side of each of the two racks. Two support plates are fixedly connected to the left and right sides of each connecting plate. Two stretching rollers are rotatably connected inside each support plate. An external support assembly is installed inside each of the two stretching rollers. As a further description of the above technical solution: The external support assembly includes two mounting columns. The exterior of each mounting column is fixedly connected to the exterior of two of the stretching rollers. The interior of each mounting column is fixedly connected to an electric push rod II. The drive end of each electric push rod II is fixedly connected to a connecting column. A fixed column is fixedly connected to the rear side of each mounting column. Multiple connecting rod II are rotatably connected to the outer wall of the fixed column. Multiple connecting rod I are rotatably connected to the outer wall of the connecting column. An external support rod is rotatably connected to the other side of each connecting rod I.

[0007] As a further description of the above technical solution: The operating table has a square groove inside, and a square slider is slidably connected inside the square groove. As a further description of the above technical solution: The top of the square slider is fixedly connected to the bottom of the support plate, and a groove is provided inside the operating table; As a further description of the above technical solution: Multiple support plates are slidably connected inside the operating table, and two support plates are slidably connected inside the operating table; As a further description of the above technical solution: Limiting blocks are fixedly connected to the left side of each of the second support plates, and another stretching roller is rotatably connected inside the second support plate. As a further description of the above technical solution: The left side of the limiting block is in contact with the right side of the support plate 1 on the right side, and a shaping oven is fixedly connected to the top of the operating table. As a further description of the above technical solution: The bottom of the connecting block is slidably connected to the inner wall of the operating table, and the interior of the two stretching rollers has multiple grooves. The exterior of the outer support rod is slidably connected to the inner wall of the two stretching rollers.

[0008] This utility model has the following beneficial effects: 1. In this utility model, when using the film stretching machine in daily use, the electric push rod one is started first. The push of the electric push rod one causes the connecting block to slide. At this time, the connecting block causes the rack connected to it to slide. The sliding of the rack engages with the rotating gear. The rotation of the gear causes the rack on the other side to slide. The sliding of the racks on both sides causes the connecting plate connected to them to start sliding. This causes the stretching rollers on both sides to slide and adjust their positions to stretch the film. The key parameters of stretching ratio and tension distribution can be adjusted in real time to adapt to the production needs of films with different materials and thicknesses, avoiding the problem of insufficient or excessive stretching caused by fixed parameters.

[0009] 2. In this utility model, when using the film stretching machine in daily use, the electric push rod one is started first. The push of the electric push rod one causes the connecting block to slide. At this time, the connecting block causes the rack connected to it to slide. The sliding of the rack engages with the rotating gear. The rotation of the gear causes the rack on the other side to slide. The sliding of the racks on both sides causes the connecting plate connected to them to start sliding. This causes the stretching rollers on both sides to slide and adjust their positions to stretch the film. The key parameters of stretching ratio and tension distribution can be adjusted in real time to adapt to the production needs of films with different materials and thicknesses, avoiding the problem of insufficient or excessive stretching caused by fixed parameters. Attached Figure Description

[0010] Figure 1 This is a three-dimensional schematic diagram of a film stretching machine for film production proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a support plate for a film stretching machine for film production according to the present invention. Figure 3 This is a schematic diagram of the structure of a shaping oven for a film stretching machine used in film production, as proposed in this utility model. Figure 4 This is a schematic diagram of the structure of the stretching roller of a film stretching machine for film production proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0011] Legend: 1. Operating table; 2. Electric push rod one; 3. Connecting block; 4. Rack; 5. Gear; 6. Connecting plate; 7. Support plate one; 8. Stretching roller; 9. Square slider; 10. Support plate two; 11. Limiting block; 12. Shaping oven; 13. Square slide groove; 14. Mounting column; 15. Electric push rod two; 16. Connecting column; 17. Connecting rod one; 18. Connecting rod two; 19. External support rod; 20. Fixed column. Detailed Implementation

[0012] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Reference Figures 1 to 3This utility model provides an embodiment of a film stretching machine for film production, including an operating table 1. The operating table 1 serves as the main frame, providing support and protection for the internal transmission components. A shaping oven 12 is installed on the top, forming an integrated structure. The square groove 13 and recess inside the operating table 1 are used for positioning and guiding the movement of the slider and rack 4. An electric push rod 2 is fixedly connected inside the operating table 1. The electric push rod 2 drives the connecting block 3 to translate, providing a power source for the entire stretching adjustment mechanism. The driving end of the electric push rod 2 is fixedly connected to the connecting block 3. The connecting block 3 connects the electric push rod 2 to the right rack 4, transmitting the linear motion of the push rod to the rack 4. One rack 4 is fixedly connected to the right side of the 3, and another rack 4 is slidably connected to the inner wall of the operating table 1. The rack 4 is used to mesh with the gear 5 to form a reverse synchronous motion mechanism. The left rack 4 is driven by the electric push rod 2, and the right rack 4 is linked by the gear 5. The synchronous reverse motion of the two racks 4 drives the spacing of the stretching roller 8 to change. The gear 5 is rotatably connected inside the operating table 1. The gear 5 is installed inside the operating table 1 and meshes with the racks 4 on both sides, converting the power on one side into synchronous motion on both sides. The rack 4 and the gear 5 are meshed. The two racks 4 are fixedly connected to the opposite side of each other. The function of the connecting plate 6 is to transmit the horizontal motion of the rack 4 to the stretching roller 8.

[0014] Two support plates 7 are fixedly connected to both the left and right sides of the connecting plate 6. Support plates 7 support and fix the stretching roller 8. Their bottoms engage with the square sliding groove 13 of the operating table 1 via square sliders 9, restricting their movement to a straight line. Multiple support plates 7 are slidably connected inside the operating table 1. Two support plates 10 are slidably connected inside the operating table 1. Support plates 10 support and fix another stretching roller 8, working in conjunction with support plates 7 to form a three-point support layout, improving the stability of the stretching process. Limiting blocks 11 are fixedly connected to the left side of each support plate 10. These limiting blocks 11 restrict the maximum displacement of the support plates 7, preventing excessive movement that could lead to structural collisions or damage. The left and right sides of the limiting blocks 11 are connected to the support plates 7. On the right side, the top of the operating table 1 is fixedly connected to a shaping oven 12. The function of the shaping oven 12 is to provide a high-temperature environment to fix the molecular chains of the stretched film and to ensure uniform internal temperature distribution. Another stretching roller 8 is rotatably connected inside the support plate 2 10. The function of the stretching roller 8 is to use the core component of the film to achieve film transport and stretching through rotation. Two stretching rollers 8 are rotatably connected inside the support plate 1 7. The two stretching rollers 8 are equipped with external support components. The operating table 1 has a square slide groove 13 inside. A square slider 9 is slidably connected inside the square slide groove 13. The function of the square slider 9 is to prevent the slider from rotating and to ensure the linear movement of the support plate 1 7. The top of the square slider 9 is fixedly connected to the bottom of the support plate 1 7. The operating table 1 has a groove inside.

[0015] Reference Figure 4 , Figure 5The external support assembly includes two mounting columns 14. The mounting columns 14 are fixed inside the tension rollers 8, providing a mounting base for the electric push rod 15. The exterior of each mounting column 14 is fixedly connected to the exterior of one of the two tension rollers 8. The interior of each mounting column 14 is fixedly connected to the electric push rod 15, which drives the connecting column 16 to move axially, providing power for the expansion and contraction of the external support rod 19. The driving end of the electric push rod 15 is fixedly connected to the connecting column 16, which connects the electric push rod 15 to the connecting rod 17, converting the axial thrust into radial expansion force. A fixing column 20 is fixedly connected to the rear side of the mounting column 14. The fixing column 20 is for... Connecting rod 218 provides a pivot point for rotation, and its bearing structure reduces rotational resistance. Multiple connecting rods 218 are rotatably connected to the outer wall of the fixed column 20. The function of connecting rod 218 is to provide a pivot point for rotation. Multiple connecting rods 17 are rotatably connected to the outer wall of the connecting column 16. The function of connecting rods 17 is to connect the connecting column 16 and the outer support rod 19 to form a linkage mechanism. The other side of connecting rod 17 is rotatably connected to the outer support rod 19. The outer support rod 19 acts directly on the inner wall of the film to provide uniform support force and prevent film deformation. The bottom of the connecting block 3 is slidably connected to the inner wall of the operating table 1. Multiple grooves are opened inside the two stretching rollers 8. The outer side of the outer support rod 19 is slidably connected to the inner wall of the two stretching rollers 8.

[0016] Working principle: When using the film stretching machine, first start the electric push rod 2. The push of the electric push rod 2 causes the connecting block 3 to slide. At this time, the connecting block 3 causes the rack 4 connected to it to slide. The sliding of the rack 4 meshes with the rotating gear 5. The rotation of the gear 5 causes the rack 4 on the other side to slide. The sliding of the racks 4 on both sides causes the connecting plate 6 connected to them to start sliding. This drives the stretching rollers 8 on both sides to slide and adjust their positions to stretch the film. The key parameters of stretch ratio and tension distribution can be adjusted in real time to adapt to the production needs of films with different materials and thicknesses, avoiding the problems of insufficient or excessive stretching caused by fixed parameters.

[0017] When using the film stretching machine, first start the electric push rod 2. The push of the electric push rod 2 causes the connecting block 3 to slide. At this time, the connecting block 3 causes the rack 4 connected to it to slide. The sliding of the rack 4 engages with the rotating gear 5. The rotation of the gear 5 causes the rack 4 on the other side to slide. The sliding of the racks 4 on both sides causes the connecting plate 6 connected to them to start sliding. This drives the stretching rollers 8 on both sides to slide and adjust their positions to stretch the film. The key parameters of stretch ratio and tension distribution can be adjusted in real time to adapt to the production needs of films with different materials and thicknesses, avoiding the problems of insufficient or excessive stretching caused by fixed parameters.

[0018] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film stretching machine for film production, comprising an operating table (1), characterized in that: An electric push rod (2) is fixedly connected inside the operating table (1). A connecting block (3) is fixedly connected to the driving end of the electric push rod (2). One rack (4) is fixedly connected to the right side of the connecting block (3). Another rack (4) is slidably connected to the inner wall of the operating table (1). A gear (5) is rotatably connected inside the operating table (1). The rack (4) and the gear (5) are meshed. A connecting plate (6) is fixedly connected to the far side of the two racks (4). Two support plates (7) are fixedly connected to the left and right sides of the connecting plate (6). Two tension rollers (8) are rotatably connected inside the support plate (7). An external support assembly is installed inside the two tension rollers (8).

2. The film stretching machine for film production according to claim 1, characterized in that: The external support assembly includes two mounting columns (14), the outside of which is fixedly connected to the outside of two of the stretching rollers (8). The inside of each mounting column (14) is fixedly connected to an electric push rod (15). The drive end of the electric push rod (15) is fixedly connected to a connecting column (16). The rear side of the mounting column (14) is fixedly connected to a fixing column (20). The outer wall of the fixing column (20) is rotatably connected to multiple connecting rods (18). The outer wall of the connecting column (16) is rotatably connected to multiple connecting rods (17). The other side of the connecting rods (17) is rotatably connected to an external support rod (19).

3. A film stretching machine for film production according to claim 1, characterized in that: The operating table (1) has a square groove (13) inside, and a square slider (9) is slidably connected inside the square groove (13).

4. A film stretching machine for film production according to claim 3, characterized in that: The top of the square slider (9) is fixedly connected to the bottom of the support plate (7), and the inside of the operating table (1) is provided with a groove.

5. A film stretching machine for film production according to claim 1, characterized in that: Multiple support plates (7) are slidably connected inside the operating table (1), and two support plates (10) are slidably connected inside the operating table (1).

6. A film stretching machine for film production according to claim 5, characterized in that: Each of the two support plates (10) is fixedly connected to a limit block (11) on the left side, and another stretching roller (8) is rotatably connected inside the two support plates (10).

7. A film stretching machine for film production according to claim 6, characterized in that: The left side of the limiting block (11) is in contact with the right side of the support plate (7) on the right side, and the top of the operating table (1) is fixedly connected to the shaping oven (12).

8. A film stretching machine for film production according to claim 2, characterized in that: The bottom of the connecting block (3) is slidably connected to the inner wall of the operating table (1), wherein the interior of the two stretching rollers (8) has multiple grooves, and the exterior of the outer support rod (19) is slidably connected to the inner wall of the two stretching rollers (8).

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