Tension-adjustable release film unreeling machine

Abstract

The utility model relates to the technical field of material processing and production equipment manufacturing, in particular to a release film unreeling machine capable of adjusting tension. The release film unreeling machine comprises a supporting plate, an air cylinder, a threaded rod, limiting plates, a moving block and the like, the air cylinder is installed on the upper portion of the supporting plate in a penetrating mode, the threaded rod is connected to the middle of the supporting plate in a penetrating mode in a rotating mode, the limiting plates are fixedly connected to the left side wall and the right side wall of the supporting plate in a front-back symmetry mode, and the threaded rod is located between the two limiting plates. A through groove is formed in the middle of the limiting plate, and the threaded rod is in threaded connection with two moving blocks. The U-shaped supporting base is driven by the air cylinder to move up and down, the step of manual adjustment is replaced, operation is easier, a worker is allowed to accurately adjust the position of the guide roller shaft through a linkage mechanism of the threaded rod and the movable block, and therefore the release film unwinding device meets release film unwinding requirements of different tension requirements, and the production efficiency is improved. And the unwinding flexibility and diversity are improved.

Description

Technical Field

[0001] This utility model relates to the field of material processing and production equipment manufacturing technology, and in particular to an adjustable tension release film unwinding machine. Background Technology

[0002] Release film is a specially treated thin film material used to prevent unwanted adhesion between the adhesive and the substrate. It is widely used in industries such as electronics, packaging, and printing, especially in applications requiring surface protection or temporary bonding. Unwinding machines smoothly unroll the release film and maintain appropriate tension through a series of guide rollers and a tension control system. This ensures that the release film does not wrinkle or loosen during subsequent processing. On the production line, the tension of the release film directly affects product quality and production efficiency.

[0003] However, traditional unwinding machine guide devices have certain limitations in terms of flexibility and adaptability, especially in terms of adjusting the tension of the release film and the position of the guide roller. Most unwinding machine guide devices are designed in a relatively fixed manner and lack sufficient flexibility. This means that they usually cannot make timely and effective adjustments when dealing with release films of different thicknesses or tension requirements. The tension of the release film has a direct impact on the quality and appearance of the final product. Too tight or too loose tension will lead to defects in the finished product.

[0004] Therefore, there is a particular need for an adjustable tension release film unwinding machine to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the shortcomings of traditional unwinding machine guide devices, such as poor flexibility, difficulty in tension adjustment, and impact on efficiency and product quality, this utility model provides an adjustable tension release film unwinding machine.

[0006] This utility model is achieved through the following technical means: an adjustable tension release film unwinding machine, comprising a support plate, a cylinder, a threaded rod, a limiting plate, a moving block, a connecting piece, a mounting base, a U-shaped support base, a fixed block, a guide roller shaft, a second slider, and a fixed rod. A cylinder is installed through the upper part of the support plate, and a threaded rod is rotatably connected through the middle of the support plate. Limiting plates are symmetrically fixed to the left and right sidewalls of the support plate, and the threaded rod is located between the two sets of limiting plates. A through groove is opened in the middle of the limiting plate. Two moving blocks are threadedly connected to the threaded rod, and the two moving blocks are located on the left and right sides of the support plate, respectively. Connecting pieces are fixed to the front and rear sidewalls of the moving blocks, and the connecting pieces slide with the limiting plates through the through grooves. Mounting bases are fixed to the left end of the left limiting plate and the right end of the right limiting plate. The cylinder has a U-shaped support fixed to its telescopic rod, which is rotatably connected to two mounting seats at both ends. A U-shaped support is also fixed between each pair of longitudinally aligned connectors. The front and rear of each U-shaped support has a groove, with the groove of the middle U-shaped support being round at the top and round at the bottom, while the grooves of the left and right U-shaped supports are round at the top and round at the bottom. Fixed blocks are fixed to the front and rear sides of the upper part of the middle U-shaped support, and similarly, fixed blocks are fixed to the front and rear sides of the lower part of the left and right U-shaped supports. A guide roller is rotatably connected between each pair of longitudinally aligned fixed blocks, and the guide roller is located between each pair of longitudinally aligned grooves. A second slider is fixed to the front wall of the middle U-shaped support, and a fixed rod is fixed to the front top of the support plate, sliding through the middle of the second slider.

[0007] More preferably, it also includes knobs, with knobs fixed to both ends of the threaded rod.

[0008] More preferably, it also includes a first slider, a pressing rod, a spring, and a piston rod. The first slider is slidably connected inside the groove. A pressing rod is fixed between every two longitudinally aligned first sliders and a spring is connected between the pressing rod and the U-shaped support. The pressing rod slides between every two longitudinally aligned fixed blocks. A left-right symmetrical piston rod is fixed between the first slider and the U-shaped support.

[0009] More preferably, the support plate is in the shape of a "Z" (or "U").

[0010] More preferably, the mounting base is provided with threaded mounting holes.

[0011] More preferably, the fixing block is provided with a groove to facilitate the movement of the extrusion rod.

[0012] Based on the above description of the structure of this utility model, the design starting point, concept and advantages of this utility model are as follows: 1. This utility model uses a cylinder to drive the U-shaped support seat to move up and down, replacing the manual adjustment step, making the operation easier. Moreover, through the linkage mechanism between the threaded rod and the moving block, it allows the staff to accurately adjust the position of the guide roller shaft, thereby adapting to the release film unwinding requirements of different tension requirements and improving the flexibility and diversity of unwinding.

[0013] 2. This utility model, through the design of the first slider and extrusion rod in the guiding system, can automatically adjust the position according to the thickness of the release film, and provide appropriate tension through the compression or stretching of the spring, ensuring that the release film remains stable during the unwinding process and avoiding unwinding defects caused by uneven tension. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the planar structure of the support plate, cylinder, and moving block of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the support plate, threaded rod, and limiting plate of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the U-shaped support, chute, and guide roller shaft of this utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1. Support plate, 2. Cylinder, 3. Threaded rod, 4. Limiting plate, 5. Through groove, 6. Moving block, 7. Connector, 8. Mounting seat, 9. Knob, 10. U-shaped support seat, 11. Slide groove, 12. Fixing block, 13. Guide roller shaft, 14. First slider, 15. Extrusion rod, 16. Spring, 17. Piston rod, 18. Second slider, 19. Fixing rod. Detailed Implementation

[0019] 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.

[0020] Example: An adjustable tension release film unwinding machine, such as... Figures 1-4As shown, the system includes a support plate 1, a cylinder 2, a threaded rod 3, a limiting plate 4, a moving block 6, a connector 7, a mounting base 8, a knob 9, a U-shaped support base 10, a fixing block 12, a guide roller shaft 13, a first slider 14, a pressing rod 15, a spring 16, a piston rod 17, a second slider 18, and a fixing rod 19. The cylinder 2 is mounted on the upper part of the support plate 1, which is shaped like a "Z". A threaded rod 3 is rotatably connected to the middle of the support plate 1. Limiting plates 4 are symmetrically welded to the left and right side walls of the support plate 1, with the threaded rod 3 located between two sets of limiting plates 4. A through groove is formed in the middle of the limiting plate 4. 5. Two movable blocks 6 are threadedly connected to the threaded rod 3, and the two movable blocks 6 are located on the left and right sides of the support plate 1 respectively. Connecting parts 7 are welded to the front and rear side walls of the movable blocks 6, and the connecting parts 7 form a sliding fit with the limiting plate 4 through the through groove 5. Mounting seats 8 are welded to the left end of the left limiting plate 4 and the right end of the right limiting plate 4. The two ends of the threaded rod 3 are rotatably connected between the two mounting seats 8. The mounting seats 8 are provided with threaded mounting holes. Knobs 9 are glued to both ends of the threaded rod 3. U-shaped support seats 10 are glued to the telescopic rod of the cylinder 2, and each pair of longitudinally aligned connecting parts 7 are also welded together. A U-shaped support base 10 is provided, with grooves 11 on both the front and rear sides. The groove 11 of the middle U-shaped support base 10 is round at the top and round at the bottom, while the grooves 11 of the left and right U-shaped support bases 10 are round at the top and round at the bottom. Fixing blocks 12 are glued to the front and rear sides of the upper part of the middle U-shaped support base 10, and fixing blocks 12 are also glued to the front and rear sides of the lower part of the left and right U-shaped support bases 10. The fixing blocks 12 are provided with grooves 11 to facilitate the movement of the extrusion rod 15. A guide roller shaft 13 is rotatably connected between every two longitudinally aligned fixing blocks 12. 3 is located between every two longitudinally aligned slide grooves 11. A first slider 14 is slidably connected inside the slide groove 11. A pressing rod 15 is welded between every two longitudinally aligned first sliders 14 and a spring 16 is connected between the first slider 14 and the U-shaped support seat 10. The pressing rod 15 slides between every two longitudinally aligned fixed blocks 12. A piston rod 17 symmetrically arranged on both sides is welded between the first slider 14 and the U-shaped support seat 10. A second slider 18 is welded to the front side wall of the middle U-shaped support seat 10. A fixing rod 19 is welded to the top front side of the support plate 1. The fixing rod 19 slides through the middle of the second slider 18.

[0021] First, the worker needs to place the support plate 1 stably on a horizontal table and use screws to fix the mounting seats 8 on both sides to the table to ensure stability. Then, the worker passes the release film through the guide system in sequence: starting from below the left guide roller shaft 13, then around to above the middle guide roller shaft 13, and finally around to below the right guide roller shaft 13, forming an unwinding path. The thickness of the release film will determine the position of the first slider 14. If the release film is thicker, the first slider 14 will be squeezed by the release film, causing the extrusion rod 15 to move outward in the groove 11, the piston rod 17 to retract, and the spring 16 to compress accordingly. Conversely, if the release film is thinner, the first slider 14 will cause the extrusion rod 15 to move inward in the groove 11, the piston rod 17 to extend, and the spring 16 to stretch, providing appropriate tension for the release film. After the release film passes around the guide roller shaft 13, the extrusion rod 15 is pressed against the yarn to maintain its stability during the unwinding process. Then, the worker starts the unwinding process by... The cylinder 2 is activated, and its telescopic rod extends, driving the connected U-shaped support 10 to rise to the required height. The second slider 18 also slides upward on the fixed rod 19. After reaching the predetermined height, the cylinder 2 is closed. Then, by squeezing the knob 9 to rotate the threaded rod 3, the position of the threaded rod 3 is adjusted. Under the constraint of the through groove 5 of the limiting plate 4, the rotation of the threaded rod 3 is converted into the linear movement of the moving block 6. The movement of the moving block 6 drives the connecting piece 7 and the guide roller shaft 13 to move horizontally within the track of the limiting plate 4. The operator can flexibly adjust the position of the guide roller shafts 13 on both sides according to the actual unwinding requirements. After the position adjustment is completed, the operator starts the main switch of the unwinding machine. At this time, the fixed block 12 remains stationary, and the release film will roll on the guide roller shaft 13 to start the unwinding process. When the release film is unwound, simply turn off the main switch of the unwinding machine, and the entire unwinding process is completed. The operator can then remove the finished product and prepare for the next round of unwinding.

[0022] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. An adjustable tension release film unwinding machine, characterized in that: It includes a support plate (1), a cylinder (2), a threaded rod (3), a limiting plate (4), a moving block (6), a connecting piece (7), a mounting seat (8), a U-shaped support seat (10), a fixing block (12), a guiding roller shaft (13), a second slider (18) and a fixing rod (19). A cylinder (2) is installed through the upper part of the support plate (1). A threaded rod (3) is installed through and rotatably connected to the middle part of the support plate (1). The left and right side walls of the support plate (1) are both symmetrically fixed front and back with limiting plates (4), and the threaded rod (3) is located between the two groups of limiting plates (4). A through groove (5) is opened in the middle of the limiting plate (4). Two moving blocks (6) are threadedly connected to the threaded rod (3), and the two moving blocks (6) are respectively located on the left and right sides of the support plate (1). Connecting pieces (7) are fixed to the front and back side walls of the moving block (6), and the connecting pieces (7) form a sliding fit with the limiting plates (4) through the through groove (5). Mounting seats (8) are fixed to the left end of the left limiting plate (4) and the right end of the right limiting plate (4). The two ends of the threaded rod (3) are installed through and rotatably connected between the two mounting seats (8). A U-shaped support seat (10) is fixed to the telescopic rod of the cylinder (2), and a U-shaped support seat (10) is also fixed between every two longitudinally aligned connecting pieces (7). Chute grooves (11) are opened in the front and back parts of the U-shaped support seat (10). The chute groove (11) of the middle U-shaped support seat (10) is in the shape of a round upper part and a square lower part, while the chute grooves (11) of the U-shaped support seats (10) on the left and right sides are in the shape of a square upper part and a round lower part. Fixing blocks (12) are fixed to the front and back sides of the upper part of the middle U-shaped support seat (10), and fixing blocks (12) are also fixed to the front and back sides of the lower part of the U-shaped support seats (10) on the left and right sides. A guiding roller shaft (13) is installed through and rotatably connected between every two longitudinally aligned fixing blocks (12), and the guiding roller shaft (13) is located between every two longitudinally aligned chute grooves (11). A second slider (18) is fixed to the front side wall of the middle U-shaped support seat (10). A fixing rod (19) is fixed to the front side of the top of the support plate (1), and the fixing rod (19) slidably passes through the middle of the second slider (18).

2. An adjustable tension release film unwinding machine according to claim 1, characterized in that: It further includes a knob (9), and knobs (9) are fixed to both ends of the threaded rod (3).

3. An adjustable tension release film unwinding machine according to claim 2, characterized in that: It further includes a first slider (14), a pressing rod (15), a spring (16) and a piston rod (17). A first slider (14) is slidably connected inside the chute groove (11). A pressing rod (15) is fixed between every two longitudinally aligned first sliders (14), and a spring (16) is connected between the pressing rod (15) and the U-shaped support seat (10). The pressing rod (15) slides between every two longitudinally aligned fixing blocks (12). Symmetric piston rods (17) are fixed between the first slider (14) and the U-shaped support seat (10).

4. An adjustable tension release film unwinding machine according to claim 3, characterized in that: The support plate (1) is in a shape of a capital letter 'J'.

5. An adjustable tension release film unwinding machine according to claim 4, characterized in that: Threaded mounting holes are provided on the mounting seat (8).

6. An adjustable tension release film unwinding machine according to claim 5, characterized in that: Chute grooves (11) for facilitating the movement of the pressing rod (15) are opened on the fixing block (12).

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