A kind of polyimide F46 film hot welding jig

Abstract

The utility model relates to hot welding equipment technical field, specifically disclose a kind of hot welding jig of polyimide F46 film;The jig includes hot welder, workstation and mounting bracket, and placing roller is rotatably connected in mounting bracket, and the front side of placing roller is equipped with membrane guide roller, and adjusting assembly is fixed on the outer wall of mounting bracket, adjusting assembly includes fixed track, lifting rod and gear, and lifting rod is slid in fixed track and side wall is provided with tooth pattern, gear is rotatably connected in mounting bracket and is engaged with tooth pattern, and membrane guide roller end portion passes through the first clamping groove on mounting bracket and is fixedly connected with lifting rod, and fixed track side surface is also equipped with the fixed component including sliding block, guide slide column and spring.The utility model adjusts film tension by gear drive membrane guide roller lifting, and position self-locking is realized with spring pin structure, effectively solve the film rupture or wrinkling problem caused by the existing membrane structure fixation, with the advantages of flexible adjustment, fixed firm.

Description

Technical Field

[0001] This utility model relates to the field of thermal welding equipment technology, and in particular to a thermal welding fixture for polyimide F46 film. Background Technology

[0002] Polyimide F46 film is widely used in high-end manufacturing fields such as electronics, aerospace and electronics due to its excellent heat resistance, electrical insulation and chemical stability. In the production and processing of these film products, thermal welding is a crucial process. It usually requires a special thermal welding fixture to accurately guide the film to the thermal welding area for sealing. In this process, the tension control of the film directly affects the welding quality. Excessive tension will cause the film to break when it softens due to heat, while insufficient tension will cause the film to wrinkle or shift during transport, affecting the yield.

[0003] However, in existing polyimide F46 film thermal welding equipment, the film guiding structure often adopts a fixed roller design, meaning that the position of the film guiding roller on the frame is constant. Although this design is simple, it cannot flexibly adjust the tension of the film when welding films of different thicknesses, materials, batches, or with different process requirements. When the film is stretched too tight or too loose during production, operators cannot intervene quickly and effectively, and can only stop the machine to re-thread the film or adjust the roll position. This not only reduces production efficiency but also increases the scrap rate, making it difficult to meet the requirements of modern industry for high-precision and high-efficiency production.

[0004] Therefore, this invention proposes a hot welding fixture for polyimide F46 film to address the shortcomings of the prior art. Utility Model Content

[0005] In the existing technology, the guide mechanism of polyimide F46 film thermal welding equipment has a fixed and non-adjustable position, which makes it impossible to flexibly adjust the film tension according to the actual welding situation. This can easily lead to film breakage or wrinkling, resulting in low production efficiency and high product scrap rate. The present invention aims to provide a thermal welding fixture for polyimide F46 film with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a hot welding fixture for polyimide F46 film, comprising: a hot welder, a worktable disposed on the front side of the hot welder, and a mounting bracket fixedly connected to the rear side of the hot welder, wherein two placement rollers are rotatably connected inside the mounting bracket for placing film rolls, a guide roller is disposed on the front side of the placement rollers for guiding, and an adjustment assembly fixedly connected to the outer wall of the mounting bracket.

[0007] The adjustment component has a transmission adjustment structure that can drive the guide roller to make vertical displacement. Specifically, it includes a fixed track, a lifting rod, and a gear. The fixed track is fixedly connected to the outer wall of the mounting bracket. The lifting rod is slidably connected to the inside of the fixed track. The outer wall of the lifting rod is provided with teeth. The gear is rotatably connected to the outer wall of the mounting bracket. The fixed track is provided with a second slot. The teeth of the lifting rod pass through the second slot and mesh with the gear.

[0008] Furthermore, the guide roller and the lifting rod are fixedly connected by passing through a first slot on the side wall of the mounting bracket. The side wall of the mounting bracket has a first slot in the vertical direction. The end of the guide roller passes through the first slot and is fixedly connected to the lifting rod. The end of the guide roller can slide along the inner wall of the first slot. By rotating the gear, the lifting rod is driven to move along the fixed track, thereby driving the guide roller to rise and fall synchronously along the first slot, thereby realizing the adjustment of film tension.

[0009] Preferably, a handle is fixedly connected to the side of the gear away from the mounting bracket. The gear can be driven to rotate by manually rotating the handle, which is simple and labor-saving. In addition, there are two sets of adjustment components, which are symmetrically arranged at both ends of the guide roller to ensure that the guide roller remains horizontal and evenly stressed during the lifting and lowering process.

[0010] Preferably, the hot welding fixture for the polyimide F46 film further includes a fixing component, which is disposed on the side wall of the fixed track opposite to the second slot, for locking the position of the lifting rod after adjustment. Specifically, the side wall of the fixed track is provided with a third slot, in which a slider is slidably connected. The end of the slider near the lifting rod passes through the third slot and is fixedly connected to the lifting rod, thereby transmitting the internal displacement of the lifting rod to the outside.

[0011] Preferably, a mounting base is fixedly connected to the side of the slider away from the lifting rod. A guide column is slidably inserted inside the mounting base. The sliding direction of the guide column is perpendicular to the sliding direction of the lifting rod. A plurality of positioning holes are equally spaced along the vertical direction on the side wall of the mounting bracket. One end of the guide column can pass through the slider and be inserted into one of the positioning holes, thereby restricting the movement of the slider and the lifting rod by means of a mechanical pin.

[0012] Preferably, a protruding post is fixedly connected to one end of the guide slide column outside the mounting base. The side wall of the mounting base has a groove for the protruding post to slide. The mounting base has a cavity inside and a spring is provided. The spring is sleeved on the outer periphery of the guide slide column, and the spring is always compressed or has a tendency to recover its deformation to push the guide slide column toward the positioning hole. This design realizes the automatic reset locking function, improves the convenience of operation and the reliability of locking.

[0013] Preferably, there are two placement rollers, which are arranged side by side at intervals in the horizontal direction. The axis of the guide roller is parallel to the axis of the placement roller. The fixed track is a hollow rectangular tubular structure. The second slot and the first slot are respectively opened on mutually perpendicular planes.

[0014] This utility model has the following beneficial effects: 1. This utility model, by setting an adjustable guide roller structure, uses the meshing transmission of gears and lifting rods to drive the guide roller to move in the vertical direction, which solves the problem in the prior art where the position of the guide device is fixed and cannot adapt to different tension requirements, causing the film to easily break due to excessive tension or wrinkle due to insufficient tension. It achieves the technical effect of accurately adjusting the film tension according to the actual welding requirements, ensuring smooth film transmission, and improving the yield of hot welding products.

[0015] 2. This utility model solves the problem that conventional adjustment mechanisms lack effective limiting devices after adjustment, which can easily cause positional displacement during equipment operation vibration. It achieves the technical effect of quickly and reliably locking the guide roller height after adjustment, making the operation simple and the fixation stable, thus ensuring the stability of the production process.

[0016] 3. This utility model solves the problem of axial rotation or swaying that may occur during the vertical movement of the lifting rod by using a fixed track and lifting rod for guidance. It achieves the technical effect of providing precise guidance for the lifting movement, enhancing structural rigidity, ensuring that the guide roller always remains horizontal, and preventing the film from deviating during the transmission process. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a heat welding fixture for polyimide F46 film proposed in this utility model; Figure 2 This is a schematic diagram of the first slot portion of a heat welding fixture for polyimide F46 film proposed in this utility model. Figure 3This is a schematic diagram of the lifting rod part of a heat welding fixture for polyimide F46 film proposed in this utility model. Figure 4 for Figure 2 Enlarged view of point A in the image; Figure 5 for Figure 3 Enlarged view of point B in the image.

[0018] Legend: 1. Welding machine; 2. Workbench; 3. Mounting bracket; 4. Guide roller; 5. Adjustment assembly; 501. Fixed track; 502. Lifting rod; 503. First slot; 504. Gear; 505. Rotary handle; 506. Second slot; 6. Fixing assembly; 601. Positioning hole; 602. Slider; 603. Third slot; 604. Protruding post; 605. Guide slide post; 606. Spring; 607. Mounting base; 7. Placement roller. 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] Please refer to Figures 1 to 5 This utility model provides a hot welding fixture for polyimide F46 film, which aims to solve the structural defects in the prior art where the fixed and unadjustable guide film structure causes the film to break or wrinkle during transmission due to improper tension.

[0021] like Figure 1 and Figure 2 As shown, the hot welding fixture for polyimide F46 film includes a hot welder 1 and a worktable 2 set in front of the hot welder 1 for supporting the film to be welded. A mounting bracket 3 is fixedly connected to the rear side of the hot welder 1. The mounting bracket 3 serves as the basic carrier for film feeding and tension adjustment. A placement roller 7 is rotatably connected inside the mounting bracket 3. Preferably, there are two placement rollers 7, which are arranged side by side at intervals in the horizontal direction. The two ends of the placement roller 7 are rotatably connected to the inner sidewalls of the mounting bracket 3 respectively. A receiving space for placing the rolled film is formed between the two placement rollers 7. A guide roller 4 is set in front of the placement roller 7. The guide roller 4 is used to support and guide the film that is about to enter the hot welder 1, and the axis of the guide roller 4 is parallel to the axis of the placement roller 7.

[0022] To achieve precise adjustment of the film tension, an adjustment component 5 is fixedly connected to the outer wall of the mounting bracket 3. The adjustment component 5 includes a fixed rail 501 fixedly connected to the outer wall of the mounting bracket 3, and a lifting rod 502 slidably connected inside the fixed rail 501. The fixed rail 501 is preferably a hollow rectangular tubular structure, which provides vertical guidance for the lifting rod 502. The cross-sectional shape of the lifting rod 502 is adapted to the inner cross-sectional shape of the fixed rail 501 to prevent the lifting rod 502 from undergoing unintended axial rotation during movement. The outer wall of the lifting rod 502 is provided with teeth. A gear 504 is rotatably connected to the outer wall of the mounting bracket 3. A second slot is provided on the side wall of the fixed rail 501 facing the gear 504. 506. The teeth on the outer side wall of the lifting rod 502 are exposed through the second slot 506 and mesh with the gear 504. The side wall of the mounting bracket 3 is provided with a first slot 503 in the vertical direction. The end of the guide roller 4 passes through the first slot 503 and is fixedly connected to the lifting rod 502. The end of the guide roller 4 slides with the inner wall of the first slot 503. The second slot 506 on the fixed track 501 and the first slot 503 on the mounting bracket 3 are respectively opened on mutually perpendicular planes. Through the meshing transmission of the teeth of the gear 504 and the lifting rod 502, the lifting rod 502 is driven to move up and down along the length direction of the fixed track 501, thereby driving the guide roller 4 to move up and down synchronously along the first slot 503, thereby changing the tension of the film.

[0023] To facilitate manual rotation of the gear 504 to adjust the height of the guide roller 4, a handle 505 is fixedly connected to the side of the gear 504 away from the mounting bracket 3. The operator can rotate the gear 504 by rotating the handle 505. Then, through the meshing of the gear 504 and the lifting rod 502, the lifting rod 502 is driven to overcome gravity and move vertically upward or downward along the fixed track 501. In order to ensure the stability and uniform force of the guide roller 4 during the adjustment process, the number of adjustment components 5 is set to two sets. The two sets of adjustment components 5 are symmetrically arranged at both ends of the guide roller 4, thereby ensuring that the guide roller 4 always remains horizontal and preventing the film from shifting during the transmission process.

[0024] Meanwhile, a fixing component 6 is also provided on the side wall of the fixed track 501 opposite to the second slot 506. A third slot 603 is opened on the side wall of the fixed track 501. The third slot 603 extends vertically and a slider 602 is slidably connected inside it. The end of the slider 602 near the lifting rod 502 passes through the third slot 603 and is fixedly connected to the lifting rod 502. This structure makes the slider 602 an outward extension of the lifting rod 502 and can move up and down synchronously with the lifting rod 502. The hidden displacement of the lifting rod 502 inside the fixed track 501 is converted into the operable displacement of the slider 602 outside. The sliding length of the slider 602 along the third slot 603 is less than or equal to the sliding length of the lifting rod 502 along the fixed track 501, thereby ensuring the travel safety of the mechanical structure.

[0025] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to achieve rapid locking and releasing of the adjusted position, please refer to... Figure 4 and Figure 5 A mounting base 607 is fixedly connected to the side of the slider 602 facing away from the lifting rod 502. A guide column 605 is slidably inserted inside the mounting base 607. The sliding direction of the guide column 605 is perpendicular to the vertical sliding direction of the lifting rod 502, that is, the guide column 605 moves in the horizontal direction. A number of positioning holes 601 are equally spaced in the vertical direction on the side wall of the mounting bracket 3. These positioning holes 601 are arranged in a straight line in the vertical direction and are opened on the side wall of the mounting bracket 3 and located on the moving path of the guide column 605, corresponding to the position of the guide column 605. One end of the guide column 605 can pass through the slider 602 and be inserted into the interior of one of the positioning holes 601. When the guide column 605 is inserted into the positioning hole 601, the slider 602 is locked at the current height, thereby restricting the movement of the lifting rod 502 through the slider 602 and realizing the position fixation of the guide roller 4.

[0026] In another preferred embodiment, to enhance the convenience and reliability of the locking operation, a protrusion 604 is fixedly connected to one end of the guide slide 605 outside the mounting base 607. The side wall of the mounting base 607 has a groove for the protrusion 604 to slide. Part of the structure of the protrusion 604 is located outside the groove for easy hand operation. A cavity is formed inside the mounting base 607, and a spring 606 is installed in the cavity. The spring 606 is sleeved on the outer periphery of the guide slide 605, with one end of the spring 606 abutting against the inner wall of the mounting base 607 and the other end abutting against the protrusion 604 on one side of the outer periphery of the guide slide 605. The spring 606 is always kept in a compressed state or has a tendency to recover its deformation, thereby generating a continuous thrust to push the guide slide 605 toward the positioning hole 601. This automatic reset design ensures that as long as the protrusion 604 is released, the guide slide 605 will automatically find and insert into the nearest positioning hole 601 under the action of the elastic force, completing the self-locking.

[0027] Working principle: When film welding is required, the rolled polyimide F46 film is first placed on the placement roller 7 inside the mounting bracket 3, and one end of the film is pulled out, passing around the guide roller 4 in sequence, and fed into the hot welder 1 and extended to the worktable 2. If the film tension is found to be too high and there is a risk of breakage, or if the tension is too low and wrinkles are caused, the operator can make fine adjustments through the adjustment component 5. During adjustment, the operator first holds the protruding post 604, overcomes the elastic force of the spring 606, and pulls it outward along the groove on the mounting base 607. This action causes the guide slide post 605, which is fixedly connected to the protruding post 604, to move outward synchronously, so that the inner end of the guide slide post 605 is completely disengaged from the positioning hole 601 on the side wall of the mounting bracket 3. At this time, the fixing component 6 is in the unlocked state, and the slider 602 and the lifting rod 502 connected to it are no longer restricted by positioning. Subsequently, the operator rotates the handle 505 on the adjusting component 5. The handle 505 drives the gear 504 to rotate, and the gear 504 drives the lifting rod 502, which meshes with it, to move smoothly in the vertical direction within the fixed track 501. The movement of the lifting rod 502 synchronously drives the guide roller 4 to change its height position through the first slot 503, thereby changing the tension path length of the film and achieving the purpose of adjusting the tension. Once the appropriate tension is adjusted, the operator releases the protrusion 604. At this time, the spring 606 releases its stored elastic potential energy, pushing the guide slide 605 to reset inward. The end of the guide slide 605 automatically inserts into the nearest positioning hole 601, relocking the position of the slider 602 and the lifting rod 502. This ensures that the guide roller 4 remains stable at the new height position, preventing displacement during subsequent equipment operation vibrations and ensuring the stability of the welding process.

Claims

1. A hot welding fixture for polyimide F46 film, comprising a hot welder (1) and a worktable (2) disposed on the front side of the hot welder (1), wherein a mounting bracket (3) is fixedly connected to the rear side of the hot welder (1), and two placement rollers (7) are rotatably connected inside the mounting bracket (3), and a guide roller (4) is disposed on the front side of the placement rollers (7). Its features are, An adjustment component (5) is fixedly connected to the outer wall of the mounting bracket (3). The adjustment component (5) includes a fixed rail (501) fixedly connected to the outer wall of the mounting bracket (3) and a lifting rod (502) slidably connected inside the fixed rail (501). The outer wall of the lifting rod (502) is provided with teeth. A gear (504) is rotatably connected to the outer wall of the mounting bracket (3). A second slot (506) is provided on the side wall of the fixed rail (501) facing the gear (504). The teeth on the outer wall of the lifting rod (502) pass through the second slot (506) and mesh with the gear (504). A first slot (503) is provided on the side wall of the mounting bracket (3) in the vertical direction. The end of the guide roller (4) passes through the first slot (503) and is fixedly connected to the lifting rod (502). The end of the guide roller (4) slides with the inner wall of the first slot (503).

2. The heat welding fixture for polyimide F46 film according to claim 1, characterized in that, The gear (504) is fixedly connected to a handle (505) on one side away from the mounting bracket (3). There are two sets of adjustment components (5), and the two sets of adjustment components (5) are symmetrically arranged at both ends of the guide roller (4).

3. The heat welding fixture for polyimide F46 film according to claim 1, characterized in that, A fixing component (6) is also provided on the side wall of the fixed track (501) away from the second slot (506). A third slot (603) is opened on the side wall of the fixed track (501). A slider (602) is slidably connected inside the third slot (603). One end of the slider (602) near the lifting rod (502) passes through the third slot (603) and is fixedly connected to the lifting rod (502).

4. The heat welding fixture for polyimide F46 film according to claim 3, characterized in that, The slider (602) is fixedly connected to a mounting base (607) on the side opposite to the lifting rod (502). A guide column (605) is slidably inserted inside the mounting base (607). The sliding direction of the guide column (605) is perpendicular to the sliding direction of the lifting rod (502). The side wall of the mounting bracket (3) is provided with a plurality of positioning holes (601) at equal intervals along the vertical direction. The position of the positioning hole (601) corresponds to the position of the guide column (605), and one end of the guide column (605) passes through the slider (602) and is inserted into the interior of one of the positioning holes (601).

5. The heat welding fixture for polyimide F46 film according to claim 4, characterized in that, The guide slide (605) is fixedly connected to a protrusion (604) at one end outside the mounting base (607). The side wall of the mounting base (607) is provided with a groove for the protrusion (604) to slide. The interior of the mounting base (607) is provided with a cavity, and a spring (606) is provided in the cavity. The spring (606) is sleeved on the outer periphery of the guide slide (605), and one end of the spring (606) abuts against the inner wall of the mounting base (607), and the other end abuts against the protrusion (604) on one side of the outer periphery of the guide slide (605). The spring (606) always maintains compression or has a tendency to recover deformation to push the guide slide (605) towards the positioning hole (601).

6. The heat welding fixture for polyimide F46 film according to claim 1, characterized in that, The two ends of the placement roller (7) are rotatably connected to the inner sidewalls of the mounting bracket (3) respectively. A receiving space for placing film rolls is formed between the two placement rollers (7). The axis of the guide roller (4) is parallel to the axis of the placement roller (7).

7. The heat welding fixture for polyimide F46 film according to claim 4, characterized in that, The positioning holes (601) are arranged in a straight line along the vertical direction, and the positioning holes (601) are opened on the inner side of the area covered by the fixed track (501) of the mounting bracket (3).

8. The heat welding fixture for polyimide F46 film according to claim 1, characterized in that, The fixed track (501) is a hollow rectangular tubular structure, and the second slot (506) and the first slot (503) are respectively opened on mutually perpendicular planes.

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