Protective film material discharging device

Abstract

The utility model discloses a protective film material discharging device which comprises rotating seats arranged on the two sides at intervals, and a plurality of film material rolling rods are assembled and connected between the rotating seats. The two ends of the film rolling rod are installed on the rotating base through spring tensioning adjusting structures correspondingly. The spring tensioning adjusting structure comprises an adjusting groove formed in the rotating base, and an adjusting rod is fixedly connected into the adjusting groove. A sliding base is connected to the adjusting rod in a sliding mode and fixedly connected to the film rolling rod. The adjusting rod is sleeved with a spring for tensioning; the protective film material discharging device further comprises a plurality of film material ironing mechanisms matched with the film material rolling rods, and unrolled film materials are ironed through the film material ironing mechanisms. According to the device, the tension degree of the discharged film material is adjusted in the initial stage in the film discharging process, the adjusting mode is simple, and the film material conveying stability in the film material structure process is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of film material production technology, and in particular relates to a protective film material feeding device. Background Technology

[0002] A protective film is a thin film material specifically designed for protection, such as the protective films on mobile phone and television screens. Protective films are mostly made of composite materials, such as polyester resin.

[0003] In the production process of protective film, the film roll is a roll of material containing the film. During production, the film roll is continuously fed onto the production line, where various types of rollers process the film. After the film roll is finished being fed, a new roll is installed.

[0004] However, due to the high flexibility of the film, it is necessary to maintain a certain tension during the unwinding and transport process. Especially during the unwinding process, if the unwinding film is too loose, the stability of the film transport will be greatly reduced. For example, the loosely transported film is prone to misalignment during transport.

[0005] However, because the thin film is soft, it is very complicated and difficult to correct the transmission posture once it is misaligned during transmission.

[0006] Therefore, in the initial stage of film feeding, immediately tightening the film once slack occurs is crucial to improving the stability of film feeding.

[0007] However, the film feeding devices currently used in production by enterprises have difficulty adjusting the tension of the film rolls at the initial stage of feeding, resulting in unstable posture and speed of film feeding during the feeding and transmission process. Utility Model Content

[0008] Based on the above background, the purpose of this utility model is to provide a protective film material feeding device.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A protective film material feeding device includes rotating seats spaced apart on both sides, and a plurality of film roll rods are assembled and connected between the rotating seats;

[0011] Both ends of the film roll rod are respectively mounted on the rotating base via a spring tension adjustment structure;

[0012] The spring tension adjustment structure includes an adjustment groove formed on the rotating seat, and an adjustment rod is fixedly connected in the adjustment groove;

[0013] A sliding block is slidably connected to the adjusting rod, and the sliding block is fixedly connected to the film roll rod;

[0014] A tensioning spring is fitted onto the adjusting rod;

[0015] The protective film unloading device also includes several film ironing mechanisms that cooperate with the film roll bar. The unwound film is ironed by the film ironing mechanisms.

[0016] Preferably, the film roll rod is fixedly mounted on the slide by a snap-fit ​​structure.

[0017] Preferably, the snap-fit ​​structure includes a snap-fit ​​base fixedly connected to the slide, and the snap-fit ​​base has an arc-shaped snap-fit ​​groove;

[0018] The end of the film roll rod is fixedly connected to a locking post that is snapped into an arc-shaped slot, and the locking post and the locking seat are locked together by a locking bolt.

[0019] Preferably, the two ends of the spring are fixedly connected to the bottom of the slide and the bottom of the adjustment groove, respectively;

[0020] The outer end of the adjusting rod is threaded with a spacer nut.

[0021] Preferably, the film ironing mechanism includes an ironing rod installed between rotating seats, and the inner end of the ironing rod is integrally formed with an ironing portion with an inclined surface.

[0022] Preferably, each end of the ironing rod is fixedly connected to a connecting pipe, and the connecting pipe is fixedly connected to a spring slide.

[0023] A slide rod that is slidably connected to the spring slide is fixedly connected to the rotary seat, and a telescopic spring is sleeved on the slide rod;

[0024] The upper end of the slide rod is threaded with a nut.

[0025] Preferably, a connecting screw is fixedly connected to the spring slide, and the connecting screw is threaded onto the cavity of the connecting pipe.

[0026] Preferably, the connecting pipe has a threaded structure inside its cavity.

[0027] Preferably, the two ends of the telescopic spring are fixedly connected to a rotating seat and a spring slide, respectively.

[0028] This utility model has the following beneficial effects:

[0029] 1. During operation, when the unwound film material loosens, the operator lowers the film roll rod as they turn the spacer nut downwards. This descent causes the unwound film to snap open, tensioning it through this snapping and pulling motion. Similarly, if the film is overly tensile, to prevent deformation, the spacer nut is loosened. The spring's restoring force causes the film roll rod to rise, loosening the film. This method allows for flexible and adjustable tension control during the initial unwound stage, ensuring optimal film tension for stable transmission.

[0030] 2. During the operation, the operator turns the nut downwards. At this time, the spring slide slides down to carry the ironing rod to increase the contact force between it and the film material, so as to remove wrinkles according to the looseness of the film material. If the looseness of the film material is high, the contact force is increased, and vice versa.

[0031] The method to reduce resistance is to loosen the nut and use the restoring force of the extension spring to achieve quick adjustment. This method allows the film to be leveled during the feeding process, while simultaneously allowing for further adjustment of the film tension. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0034] Figure 2 This is a schematic diagram of the spring tension adjustment structure in an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the snap-fit ​​structure in an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the film ironing mechanism in an embodiment of the present invention;

[0037] Figure 5 This is an embodiment of the present utility model. Figure 1 The top view in the image.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] 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.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0042] Example 1

[0043] like Figure 1-5 As shown, a protective film material feeding device includes rotating seats 1 spaced apart on both sides. Connecting flanges are installed on the outer walls of the rotating seats 1. In conventional methods, the rotating seats 1 are mounted on the frame of the feeding equipment, specifically on a rotating shaft on the frame (connected to the connecting flanges via flanges on the rotating shaft). During operation, after feeding is completed, the film roll is switched to the feeding position. Specifically, the rotating seats 1 are rotated by a motor mounted on the frame, driving the rotating shaft to adjust the orientation of the film roll rods 21 at different positions.

[0044] Several film roll rods 21 are assembled and connected between the aforementioned rotating seats 1 (the film roll rods 21 are wound with film material, and during the production process, the film roll rods 21 with film material wound on them are directly installed onto the rotating seats 1).

[0045] Both ends of the aforementioned film roll rod 21 are respectively mounted on the rotating seat 1 via a spring tension adjustment structure; the spring tension adjustment structure is used to tension the film if the looseness of the unloaded film is relatively high.

[0046] Specifically, the aforementioned spring tension adjustment structure includes an adjustment groove 11 formed on the rotating base 1, within which an adjustment rod 22 is fixedly connected; a slide block 23 is slidably connected to the adjustment rod 22, and the slide block 23 is fixedly connected to the film roll rod 21; a tensioning spring 24 is sleeved on the adjustment rod 22 (the two ends of the spring 24 are respectively fixedly connected to the bottom of the slide block 23 and the bottom of the adjustment groove). Simultaneously, a spacer nut is threadedly connected to the outer end of the adjustment rod 22.

[0047] During operation, when the unwound film material loosens, the operator turns the spacer nut downwards, causing the film roll rod 21 to descend. During the descent, the unwound film is snapped open, and the film is tensioned by snapping and pulling.

[0048] Similarly, when the film is too tense, in order to avoid deforming the film material, during the process of loosening the spacer nut, under the elastic restoring force of the spring 24, the film roll rod 21 is raised to relax the film.

[0049] This method allows for flexible and adjustable tension control of the film material during the initial feeding stage, ensuring optimal film transmission and thus guaranteeing transmission stability.

[0050] Example 2

[0051] like Figure 1-5 As shown, in this embodiment, based on the structure of Embodiment 1, the film roll rod 21 is fixedly mounted on the slide block 23 via a snap-fit ​​structure. The snap-fit ​​structure includes a snap-fit ​​seat 211 fixedly connected to the slide block 23, the snap-fit ​​seat 211 having an arc-shaped slot; simultaneously, a snap-fit ​​post 22 is fixedly connected to the end of the film roll rod 21, snapping into the arc-shaped slot, and the snap-fit ​​post 22 is locked to the snap-fit ​​seat 211 by a locking bolt 212. During loading or unloading, the locking bolt 212 is directly loosened, at which point the snap-fit ​​post 22 disengages from the snap-fit ​​seat 211. The snap-fit ​​seat 211-arc-slot structure design facilitates the loading or unloading of the film roll rod 21 (on which film material is wound).

[0052] Example 3

[0053] like Figure 1-5 As shown, based on the structure of Embodiment 2, in order to flatten the unwound film material and remove surface wrinkles and other structures, the above-mentioned protective film material unloading device also includes several film material ironing mechanisms that cooperate with the film roll rod 21. The unwound film material is ironed by the film material ironing mechanisms.

[0054] Specifically, the film ironing mechanism includes an ironing rod 32 installed between the rotating seats 1. The inner end of the ironing rod 32 is integrally formed with an ironing part 321 with an inclined surface (the ironing part 321 directly abuts against the film material, and under the action of the abutting force, it smooths out the wrinkles on the film surface). Specifically, the two ends of the ironing rod 32 are respectively fixedly connected to connecting pipes 31, and the connecting pipes 31 are fixedly connected to spring slides 311; a slide rod 33 that is slidably connected to the spring slides 311 is fixedly connected to the rotating seat 1, and a telescopic spring 34 is sleeved on the slide rod 33; a nut is threadedly connected to the upper end of the slide rod 33.

[0055] A connecting screw is fixedly connected to the spring slide 311, and the connecting screw is threaded into the cavity of the connecting pipe 31. The cavity of the connecting pipe 31 has a threaded structure. The two ends of the telescopic spring 34 are respectively fixedly connected to the rotating seat 1 and the spring slide 311.

[0056] During operation, the operator screws the nut downwards. At this time, the spring slide 311 slides down to carry the ironing rod 32 to increase the contact force between it and the film material, so as to remove wrinkles according to the relaxation of the film material. If the film material is highly relaxed, the contact force is increased, and vice versa.

[0057] The method to reduce resistance is to loosen the nut and use the restoring force of the extension spring 34 to achieve quick adjustment. This method allows the film to be leveled during the feeding process, while simultaneously adjusting the film tension again.

[0058] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A protective film material feeding device, characterized in that, It includes rotating seats spaced apart on both sides, and several film roll rods are assembled and connected between the rotating seats; Both ends of the film roll rod are respectively mounted on the rotating base via a spring tension adjustment structure; The spring tension adjustment structure includes an adjustment groove formed on the rotating seat, and an adjustment rod is fixedly connected in the adjustment groove; A sliding block is slidably connected to the adjusting rod, and the sliding block is fixedly connected to the film roll rod; A tensioning spring is fitted onto the adjusting rod; The protective film unloading device also includes several film ironing mechanisms that cooperate with the film roll bar. The unwound film is ironed by the film ironing mechanisms.

2. The protective film material dispensing device according to claim 1, characterized in that, The film roll rod is fixedly installed on the slide by a snap-fit ​​structure.

3. The protective film material feeding device according to claim 2, characterized in that, The snap-fit ​​structure includes a snap-fit ​​base fixedly connected to the slide, and the snap-fit ​​base has an arc-shaped snap-fit ​​groove. The end of the film roll rod is fixedly connected to a locking post that is snapped into an arc-shaped slot, and the locking post and the locking seat are locked together by a locking bolt.

4. The protective film material feeding device according to claim 1, characterized in that, The two ends of the spring are respectively fixedly connected to the bottom of the slide and the bottom of the adjustment groove; The outer end of the adjusting rod is threaded with a spacer nut.

5. The protective film material feeding device according to claim 1, characterized in that, The film ironing mechanism includes an ironing rod installed between rotating seats, and the inner end of the ironing rod is integrally formed with an ironing part with an inclined surface.

6. The protective film material feeding device according to claim 5, characterized in that, The ironing rod is fixedly connected to connecting pipes at both ends, and spring slides are fixedly connected to the connecting pipes. A slide rod that is slidably connected to the spring slide is fixedly connected to the rotary seat, and a telescopic spring is sleeved on the slide rod; The upper end of the slide rod is threaded with a nut.

7. The protective film material feeding device according to claim 6, characterized in that, A connecting screw is fixedly connected to the spring slide, and the connecting screw is threaded onto the cavity of the connecting pipe.

8. The protective film material feeding device according to claim 7, characterized in that, The connecting pipe has a threaded structure inside its cavity.

9. The protective film material feeding device according to claim 7, characterized in that, The two ends of the telescopic spring are respectively fixedly connected to a rotating seat and a spring slide.

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